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Metal Expansion Joint

Expansion Joints

METAL EXPA Megaflexon Advantage

Applications

megaflaxon’s metal expansion joints detailed calculations used to design the joint in accordance with EJMAstandards. megaflaxon maintains quality assurance programs in accordance with the standards and requirements of innovative designs.

ASME SECTION Ⅷ(Nuclear), ANSI B 31.1 and ANSI B 31.3, the Expansion Joint Manufacturer’s Association standards, ASME section Ⅲ

Nuclear power generation, Fossil fuel power generation industry, petroleum refining, petrochemical industries, LNG, cryogenics, Heat exchangers, Boiler & Turbine Exhaust with high quality and service

1400 ID Dual tied gimbal expansion joint.

DN1356/1538 Double gimbal expansion joint. with saddle hardware and mitre elbow attachment

Flange & Flued Type Expansion Joint Flange & Flued Type Expansion Joint

34″NOM. Universal expansion joint with pantograph linkage cold wall design(resid catalytic cracking-convertor section)

36″NOM. Hinged expansion joint(resid catalytic cracking-convertor section)

NSION JOINT

Double gimbal expansion joint(ID 1650) with tee conns & dished ends

Double gimbal expansion joint(ID 1650) with tee conns & dished ends

100″6000mml Universal Type Expansion Joint30″Tied universal expansion joint for ground settlement(pre-set : 100mm)

36″Dual Gimbal Type Expansion Joint Metallic rectangular expansion joint for flue gas line, 11182×3482×3000 mmLDouble miter coner type / intermediate pipe, sleeve:A387Gr12

All applicable American, European and international code and standards such as ASTMASMEEJMA LATEST EDITIONBSISO 9001API

INNOVATIVE DESIGNS

METAL EXPA

Tied Universal Type Expansion Joint (120″)

Pressure Balance Type Expansion Joint (92″)

Tied Universal Type Expansion Joint Dual Hinge Type Expansion Joint (36″/ Alloy 600Material)

InlinePressure Balance Type Expansion Joint (84″)

Gimbal & High Type Expansion Joint (50″)

Installation and Service

megaflexon is recognized as leader in the expansion joint As such, in-depth knowledge of the products and technology allow us to perform installation, inspection for leakage, maintenance and repairs.megaflexon provides experienced problem solving field service in expansion joint installation with skill engineer and technological experience in thermal movement.

NSION JOINT

Dual Gimbal Type Expansion Joint (24" 1936 mmL)L-Type Pressure Balance Expansion Joint (84″ 6600mmL)

Special Type Tied Univesal expansion joint (34″ 9400mmL) DN1538 Dual Gimbal Type Expansion Joint Transportationby Air

INNOVATIVE DESIGNS

Megaflexon manufacturers bellowes from

Megaflexon expansion joints offers ;

■Stainless steel 300 series - 304, 304L, 316, 321, 317L■Stainless steel 400 series - 430, 410, 437■Titanium ■Alloy 600, 625, 625LCF■Alloy 800, 800H, 825■Alloy 718, ×750■Alloy 400■Hastelloy B & C■Nickel 200

Round typeRectangularOval & special shapes type

7

EXPANSION JOINT & FLEXIBLE PRODUCT

Expansion JointsFabrication procedure

Cutting of the thin bellows layers

polishing

Roll forming by wheelor hydraulic powered forming

Weld attachment to theshell, or fittings

Multiply expension bellowsafter forming Edge Cutting

2ND

1ST

Preparation of the and weldedinner and outer layer

Multiply bellows, with4 welded layer

Pneumatic test

Hydrostatic test

Heat resistant paint coating

Rolling on roller bending machine Welding of the outer and inner layerRadiography & Liquid Penetrant test

8

1.Expansion JointThe selection of the optimum expansion joint depends on a technical as well

as an economical aspect.With many years of experience in design, production and marketing of

expansion joints, we are competitive and specialized on the know-how on thesolution for demand required in a technical and economical view.

Therefore, it will always be highly appreciated to contact to us in case that youneed our assistance.We look forward to serving you.

2.ApplicationEngineering products, expansion joint & flexible products, which can absorb

thermal and mechanical movements in pipe-work and duct systems, providesolution to engineering problems all over the world. Application are as diverseas there are industries.There are applications in

Process EngineeringPower Generation ManufacturingPetrochemicalConstructionCryogenicMetallurgyNuclearHeating Ventilating and A/CAerospaceAutomotiveCombustion Engine

3.The BellowsThe bellows is the basic element of expansion joint, which can be made by

mechanical and hydraulic forming as the requirement in MEGAFLEXON facility.The mechanical forming, which is also known as roll forming, involves passing

the tube through progressively deeper convoluted mandrels and gradually andcause realy fatigue failure by friction due to the concentration of local hardness.MEGAFLEXON can produce up to 8,000mm size as per the requirement.

The hydraulic forming is a method in which forming tube is slowlycompressed with low hydraulic pressure towards the inside after placingrestraining rings around the forming tube and sealing both ends, andsubsequently it leads to producing far better qualitive product than the

9


mechanical forming does as it gives uniform hardening all over the world. Inthis method, MEGAFLEXON can produce up to 1,500 mm in nominal diameter.

All bellows are formed in their cold state without heat treatment but it can beheat treated, in case that specially required.

The physical capacity of bellows to absorb movement is determined by thenumber of corrugations, height (H), pipe diameter (D), spacing (L), radius (r),thickness of material (t), and number of layers (n).

The basic constituent element of expansion joint, bellows, can be specified,considering on movement, pressure, temperature, service life and corrosionrate required.

Our standard material for the circular type bellows is austentic steel, that is, AISI304 and 316. In addition, other special Nickel based alloy material, like as Inconel,Incoloy, Monel and Hasteloy, can be applied on the servicing of agressive fluid.

The below can be helpful for yourconsideration on bellows and othermain part material of expansionjoint for the selection as per thespecification required.

Basically, austenitic steel is resi-stant to both high temperature anda agressive media. It has a goodmechanical properties as well whenit comes to the effect of continuousmotion in axial, lateral and angulardirection.

MEGAFLEXON bellows have been improved to achieve an optimizedrelationship between the various parameters, so that the bellows can withstandthe greatest possible load without fail on normal operating condition.

Basically, we carefully consider following criteria in designing bellows.

a) The geometrically stable state in a hydro test pressure of 1.5 times designpressure.

b) The stability for a hydro-test pressure of 1.5 x design pressure at leastwithout permanent changes in shape of leaks develops.

c) The reliable warranty service life of at least 7,000 cycles with nominal

10

movements and design pressure.d) Calculation for bellows designs are carried out to be in accordance with

EJMA (Standard of the Expansion Joint Manufacturers Association) Ⅴ. Ⅵ. Ⅶ Edition.

It is essential that the weld in the bellows be as strong as the surroundingmaterial.

Welding is done by qualified welders using machines specially built for thepurpose. Welds comply with every metallugical requirement with regard todurability and strength, documented by the certified procedure test.

4.The thermal expansion of pipeThe extent of expansion depends on the temperature difference, the expansion

coefficient and the length of the pipe. The expansion coefficient varies from onematerial to another and is also dependent on the temperature, as it increase asthe temperature rises.

The coefficient list, graphical chart and calculation example are shown on theReference Data. H.

5.Installation instruction for MEGAFLEXON axial expansion joints. Pipe laying

On installing pipelines, care should be taken that the pipe is laid in a straightline. Fixing points should be located in such a way that the pipe expandscorrectly in relation to the type of expansion joint chosen.

5.1 GuideEspecially, to operate the expansion joint effectively and positively, a guide

pipe which slides smoothly with less friction should be provided between thefixing point and the expansion joint. The distance between the expansion jointand the guide adjacent therto should be determined to be L1, L2 shown in fig.

5.2 Guide bearingsGuide bearing, which protect the pipe-work against bending in all directions,

should be of the slide or roller type. Pendent suspension is not recommended.Only one axial expansion joint may be fitted between 2 fixing points. Guidebearing should be placed at the maximum intervals.

11


5.3 Fixing points, or main anchorPipelines in which expansion joints are to be installed should be secured with

fixing points. The fixing points must be sturdly enough to absorb the forcesoriginating from the expansion joint and the frictional resistance of the guidebearing.

That is, stress on the main fixing point Fh is composed of the resulting forcescoming from;

a) The spring constant Ca, which is the force it takes to move the bellows1 mm axially or laterally. Since the spring constant is a theoretical cal-culation, a deviation of +- 30% from the values specified on the data sheets must be expected.

b) Tensile stress from the highest operating pressure of P bar affecting theactive area Ab mm2 of the bellows.

Nominal Dia (mm)

L1 (m)

L2 (m)

80

0.3

1.1

100

0.4

1.4

125

0.5

1.8

150

0.6

2.1

200

0.8

2.8

250

1.0

3.5

300

1.2

4.2

350

1.4

4.9

400

1.6

5.6

450

1.8

6.3

500

2.0

7.0

600

2.4

8.4

800

3.2

11.2

1000

4.0

14.0

1200

4.8

16.8

1500

6.0

21.0

1800

7.2

25.2

1800

15001200

1000

800

600 500

450 400 350

300 250

200

150

125

100

80

30 25 20 15 10 7 5 4 3.5

5

10

15

20

30

40

50

60

70

80

100

100

MAX.WORKING PRESSURE(kg/cm2)

INT

ER

ME

DIA

TE

GU

IDE

SP

AC

ING

L3(

M)

L3 = 1.571· ·10-3 ...................... (37)

L3 = Maximum intermediate quide space(M)E = Young's modulus of pipe material(kg/mm2)I = Moment of inertia of pipe(mm4)P = Design pressure(kg/Cm2)A = Bellows effective area(mm2)F = Bellows initial spring rate per one

corrugation(kg/mm/corr.)ex = Axial stroke of bellows per one

corrugation(mm/corr.)

When bellows is compressed in operation, use(+)｜F·ex｜;when extended, use(-)｜F·ex｜

EIPA±Fex

12

c) The inherent resistance of the expansion joint, which is the product of thespring constant kgf/mm and the expansion for the section of pipe.

d) Addition for friction force from guides between two fixing points.

Stress on intermediate fixing points Fm is calculated as the sum of the abovestresses b) and c), since tensile stress for the same pipe dimension is entirelyabsorbed by Fh.

5.4 Pre-stressingMEGAFLEXON standard expansion joints are dimensioned to absorb +/-

movements from the neutral position of the bellows, with half being absorbedby each: +/- 20 mm = 40 mm total movement, +/- 7 Deg. = 14 Deg. totalmovement. It is possible to pre-stress the expansion joint in order to make fulluse of the working range of the bellows. If calculation show that a totalmovement of 30 mm should be used, it is possible to use to advantage an ex-pansion joint with +/- 15 mm movement which has been half percentprestressed to = 30mm instead of an expansion joint with +/- 30mm movement.It should be noted, however, that it is not wrong to use an expansion joint witha movement of +/- 30mm.

The following parameters should be taken into account when verifying pre-stressing.

1) The overall dimensions at installation temperature2) The neutral length of the expansion joint before prestressing3) The total movement of the expansion4) The highest operating temperature to occur5) The lowest operating temperature to occur6) The installation temperature

It is very important that the expansion joint is installed in its optimumposition, as this will produce the best combination of movement and service lifein the bellows.

13


6.Method of SettingPlease take NOTE of the following matters with respect to the operation of

expansion joint.

6.1 Removal of set boltExpansion joint is provided with a set bolt or set bar that is painted yellows

and used for adjusting dimension. Always remove this set bolt after piping incompleted.

6.2 Inhibition of gas cutting of set boltAlways use wrench for removing the set bolt.

Absolutely avoid gas cutting since if frequently may damage bellows.

6.3 Protecting from welding sparkDo not allow welding spark and grinder spark to come into direct contact

with bellows. Always cover the bellows when you carry out these operationsnear the expansion joint.

6.4 Prohibition of arc in continuity testAbsolutely avoid the contact of electrode and earth wire with bellows in the

continuity test.

6.5 Direction of flowGenerally, the direction of flow is defined. Mount the joint in the direction of

arrow. Take care where the direction of flow is not restricted, as is the case ofhinged type, universal type, etc.

6.6 Direction of mounting hinged typeParticularly in the hinged type, hinge arm is mounted on both side of bellows.

Hence, mount the hinge arm parallel to the direction of expansion andcontraction.

6.7 PresetGenerally the expansion joint is set, taking the mounting temperature into

consideration. Please contact us when the application and the temperature areremarkably different form those set.

6.8 Use caution with sea waterTake care of installation site and maintenance since, particularly, STS-304 is

easily affected by sea water (Cl ion). Contact us before you install it for seawater piping.

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DESIGN OF EXPANSION JOINT

■■ Requirements for the DesignThe following are requirements for the design of the Expansion joint. These requirements shall be fulfilled through your inquiry.

1. Pipe size

2. Standard of pipe,

wall thickness, material

3. Connection

4. Fluid

5. Pressure

6. Temperature

7. Movement and direction

8. Material for bellows

9. Presence of inspection

by authorities concerned

and in attendance thereof

10. Equation to be used

in calcuation

11. Others

Nominal diameter of pipe size, and longitudinal and lateraldiamension of square type.

Standard of pipe(SPP, SPPS38, SPW, etc.), schedule no. In thecase of nonstandardized pipe, outside(or inside) diameter,wallthickness, material.

Beveling configuration(distinction between internal and external,angle, etc.) in welding, standards, dimension, material, etc., inflange connection, and particularly standards(API, TAYLOR, etc.)in more than 650mm(26") shall not be forgotten.

Needed for selecting the material for bellows.

Needed for selection of type.

Needed for selecting the material and type of bellows.

Needed for selecting the number of corrugations, single anddouble.If these data are not manifest, contact us with respect topipe length(distance between the ficing points) and temperature. (We will calculate them).

We select the most suitable, depending upon the fluid,temperature and pressure. However, examine and enter thetemperature of fluid, the property of material, etc., if youparticularly want to specify.

Always enter the necessity of inspection in the attendance of theKorean governments. LR, NK, ABS, DNV, etc., or similarinspection.Further, enter also the necessity of normal inspection in thepresence of your company and of X-ray inspection.

Generally, we carry out the calculation based upon the equationderived from the experimental value. If you particularly specify theKellogg Company's or number of expansion cycles, enter that specification.

Consult readily with us about the use of Expansion joint when it isused in a special atmosphere, when the fixing points are notprovided, etc.We will assist you in the examination of pipe line, the selection ofmaterial and type, the calculation of load in the fixing points, etc.

15


Pressure Resistent Strength

The capability of a bellows to resist pressure is measured primarily by hoop stressor S2 from the standards of the EJMA. Basically S2 is the stress which runscircumferencially around bellows due to the pressure difference between the insideand the outside of the bellows. Also, the ability to carry pressure is also limited bymeridional bending stress, or bulge stress, S4 which runs longitudinal to thebellows side wall and it is a measure of the tendency of the bellow's convolution tobecome less U-shaped and more spherical due to residual stress originated from thebellows forming procedure.

1.Bellows circumferential membrane stress due to internal pressure

S2 = without control ring type

S2'= with control ring type

2.Bellows meridional membrane stress due to internal pressure

S3= without control ring type

S3'= with control ring type

3.Bellows meridional bending stress due to internal pressure

S4 = Cp without control ring type

S4'= Cp with control ring type

NotationCp : Pressure factorDm : The effective diameter of bellows(mm)W : The convolution height of bellows(mm)n : No. of plyP : Design Pressure(kgf/cm2)Sa : Allowable stress on bellows material at design temperature(kgf/mm2)D : The inside diameter of bellows(mm)

P·Dm2ntp

10.571+2W/q( )

H2Ac

RR+1( )

P2·n

Wtp( )

0.85·P2·n

W-Crqtptp( )

P·W2n·tp

0.85·P·(W-Crq)2·n·tp

2

2

16

q : Bellows pitch(mm)t : Bellows thickness(mm)

tp : t· 0.5

Cr : The height factor of bellows = 0.3 - 2

Ar : The cross sectional area of reinforcement ring(mm2)Ac : The cross sectional area per one bellows convolution(mm2)R : The reaction force ratio by reinforcement ring and bellows due to internal

pressure=

H : Total internal pressure=P·Dm·q

The example of calculation

1.Free TypeNominal Diameter : 300ADesign Temperature : 400 Deg. CBellows Material : A240 T304W : 42mmq : 45mmt : 1.0mmDm : 346mmCp : 0.52n : 1P : 2kgf/cm2

1)S2, bellows circumferential membrane stress due to internal pressure

S2= × = × =1.53kg/mm2

2)S3, bellows meriodinal membrane stress due to internal pressure

S3= = =0.45kg/mm2

3)S4, bellows meriodinal bending stress due to internal pressure

S4= 2 Cp = 2 ×0.52=10.6kg/mm2

DDm( )

1000.6P1.5+320( )

Ac·EbAr·Er( )

P·Dm2·n·tp

10.571+2W/q

0.02×3462×1×0.93

P·W2·n·tp

0.02×422×1×0.93

( ) 10.571+2×42/45( )

P2n

Wtp( ) 0.02

2×142

0.93( )

17


2.Control Ring TypeNominal Diameter : 300ADesign Temperature : 400 Deg. CBellows Material : A240 T304W : 42mmq : 45mmt : 1.0mm Dm : 346mmCp : 0.52n : 1.0P : 10kgf/sq·cmAr : (the cross sectional area of control ring) : 78mm2

Ac : (0.571q+2W)×tp×nR : 1.25Cr : 0.2024Eb : 17,997kgf/mm2

H : 1557kgEr : 18,911kgf/mm2

1)S2, bellows circumferential membrane stress due to internal pressure

S2 = · = × = 3.974kgf/mm2

2)S3, bellows meriodinal membrane stress due to internal pressure

S3 = = = 1.503kgf/mm2

3)S4, bellows meriodinal bending stress due to internal pressure

S4 = 2 Cp = × 2 ×0.52

= 27.64kgf/mm2

H2Ac

RR+1

15572×(0.571×45+2×42)

0.85·P·(W0-Cr·q)2·n·tp

0.85×0.1×(42-0.2024×45)2×1×0.93

( ) 1.251.25+1( )

0.85·P2·n

W-Crqtp( ) 0.85×0.1

2×142-0.2024×45

0.93( )

18

Allowable expansion amount

Assuming that the allowable expansion amount per one corrugation of bellows is'e'mm, we can calculate the allowable displacement in each respectively follows.1) Allowable axial expansion amount

Single System X=e·nDouble System X=2·e·n

2) Allowable lateral displacementSingle System Y=n·C·e/3 DpDouble System(1)Universal type Y=2·n·(L1-c)·e/α·Dp(2)Hinged, gimbal type Y=2·n ·L2·e/Dp

3) Allowable bending angle(single system hinged, gimbal, free type)θ=2·180·e/πDp

Allowable bending radius(free type, flexible hose)R=Dp·W/e

NotationX = Axial movementY = Lateral displacementθ = Bending angleR = Bending radiuse = Allowable expansion amount per one corrugation of bellowsn = Number of corrugation of bellows(one sied in double)C = Length of bellows(one side double system)L1 = Total length of bellows containing intermediate pipe of double systemL2 = distance between hinge pins of hinged typeα = Factors depending on the ratio of bellows length of double system bellows

to total on

The above is the allowable expansion amount general complex displacement such as:1.Displacement in 3 directions X,Y and Z2.Displacement in 2 directions X and Y3.Displacement in direction X and the bending angle4.Lateral displacement in 2 directions X and Z etc.

is frequently requested. In this case the allowable expansion is calculated according to the following calculation method.

e ≥ ex + ey + eθ

19


1)Single Systemex = X/ney = 3·Dp·Y/n·Ceθ = Dp·π·θ/2·n·180

2)Double Systemex = X/2ney = α·Dp·Y/2·n(L1-C)α = 3·L2-3·C·L/3 L2- 6·C·L + 4C2

■■ Point of Application of External forces and Moments

20

Temperature

Parts name

Flange

Pipe

Stay flange

Bellows

Control ring

Guide bolt

Nut

Sleeve

Stopper pipe

-200oC~-20oC

STS304

STS304

STS304

STS304

STS304, AC-7A

STS304

STS304

STS304

STS304

-20oC~350oC

SS41, S25C, SF45

SGP, SS41, STPG38

SS41

STS304, STS316

SC20, AC-7A

S20C~35C, SCM-3

S20C~35C, SCM-3

STS304, SS41

SS41, STPG38

350oC~450oC

SF45, F-12

STPG38, SB42

SB42, F-12

STS304, STS316, STS321

SC-37, SS41

SCM-3

SCM-3

STS304

SB42, STPG38

450oC~600oC

F-12

STS304, STS321

F-12

STS321, STS316L

F-12

STS304, SCM-3

STS304, SCM-3

STS321

F-12, STS304

Temperature

Fluid

Nitric acid

Sulfuric acid

Sulfurous acid

Acetic acid

Phosphoric acid

Hydrochloric acid

Alkali

Ammonia

Brine

30oC

STS304

STS316

STS316

STS304, STS316

STS304

STS316, STS317

STS304

STS304

STS316

Intermediate temperature

STS304

INCOLOY825

STS316, STS317

STS316, STS317

STS316, STS317

INCOLOY825

STS304, STS304L

STS304, STS304L

STS317, M-5, 144M

Near boiling point

STS304

INCOLOY825

INCOLOY825

STS317L, 144ML

STS317L, INCOLOY825

-

STS304L, STS347

STS304L, STS347

INCOLOY825

MATERIAL TABLE FOR MAIN PARTS OF EXPANSION JOINTS

Classification According to Working Temperature

Bellows Materials of Anticorrosive Expansion Joints

21


A. Axial Expansion Joint

INDEX

Axial Expansion Joint

DN 40 to DN 1000 150Lbf/in2

Pages 25 / 26



Page 27



Pages 28 / 29



Page 30

B. Lateral Expansion Joint

Lateral Expansion Joint

DN 40 to DN 1000

Pages 33 / 34


DN 40 to DN 1000

Pages 35 / 36

22

C. Lateral Expansion Joint


DN 40 to DN 1000

Pages 37 / 38


DN 40 to DN 600

Pages 39 / 40

D. Angular Expansion Joint

Hinge Expansion Joint

DN 40 to DN 1000

Pages 43 / 46

Hinge Expansion Joint

DN 40 to DN 600

Pages 47 / 50

E. Pressure Balanced Type Expansion Joint Page 60

F. Buried Type Expansion Joint Pages 61

G. Metallic Rectangular Expansion Joint Pages 65

E. Gimbal Expansion Joint

Gimbal Expansion Joint

DN 40 to DN 1000

Pages 53 / 56

Gimbal Expansion Joint

DN 40 to DN 600

Pages 57 / 60

H. Reference Data Pages 69

23


MEGAFLEXON standard axial expansion joint are available in types MAXW, with

weld ends, and MAXF with flanges. Axial Expansion joints are used in pipeline systems for absorption of movements

along the longitudinal axis of the pipeline.MEGAFLEXON standard axial expansion joints are to be installed so that there is

only 1 expansion joint between each fixing point. Pipeline systems where axialexpansion joints are used must be protected against sideways bending. This is doneby fitting guide types.

a) Advantage-Simple way to absorb thermal growth on pipe-work as per the temperaturevariation-The flow direction unchanged-The efficient way to save installation space

b) Disadvantage-The solid fix point required -The good sliding bearing required for the movement axially-A lot of fix points is required on a long pipe run

A-1, Single Joints, Free TypeGenerally, the ends on both side can be fabricated as not only a fixed flange end or

free type, but also butt weld end.

ApplicationThis type of expansion joints is well fitted with low pressure gas pipe, exhaust pipe,duct, flue, etc, for the purpose of absorbing thermal growth and contraction, orpreventing vibration in exhaust pipe of engine, blower, inlet and outlet of pump, andso on. Applicable pressure rating : max. 20 kgf/cm2-full vacuum

A-2, Reinforced expansion joint(Control Ring Type)Normally, the reinforcing, or equalizing ring, is installed on the convolution root ofbellows to reinforce the bellows against a high internal pressure.

MEGAFLEXON standard material for control ring : GC 20, SS400-maximum service pressure : 40kgf/cm2

-maximum service temperature : 300 Deg.C-test pressure : 1.5 x maximum service pressure

A. AXIAL EXPANSION JOINT

24

Control Ring Type Expansion Joint

DN

32

40

50

65

80

100

125

150

200

250

300

Effective Dia(mm)

44.8

54.8

68.0

83.0

102.0

122.0

153.0

180.0

239.0

292.0

346.0

Effective Sectional Area(cm2)

16

24

36

54

82

117

185

255

449

670

942

Single Type

360

380

450

480

520

Dual Type

680

700

740

840

900

1010

1060

Single Type

1

2

3

5

3

4

16

16

22

30

38

Dual Type

0.5

1

1.5

2.5

1.5

2

8

8

11

15

19

Single Type

+10

-40

Dual Type

+20

-80

Overall Length(mm) Movement(mm) Spring Rate(kg/mm)

Product that aren’t described above table will be manufactured case by case up to 500A.

SINGLE TYPE DUAL TYPE

25


Axial-expansion joints with welding ends

Design Pressure 150Lbf/in2

DN

40

40

50

50

65

65

80

80

100

100

125

125

150

150

175

175

200

200

250

250

300

300

TYPE

MAXW-0040-013-10

MAXW-0040-028-10

MAXW-0050-014-10

MAXW-0050-030-10

MAXW-0065-018-10

MAXW-0065-038-10

MAXW-0080-022-10

MAXW-0080-047-10

MAXW-0100-022-10

MAXW-0100-048-10

MAXW-0125-025-10

MAXW-0125-053-10

MAXW-0150-025-10

MAXW-0150-054-10

MAXW-0175-025-10

MAXW-0175-054-10

MAXW-0200-027-10

MAXW-0200-058-10

MAXW-0250-026-10

MAXW-0250-066-10

MAXW-0300-028-10

MAXW-0300-086-10

+/-AX

(mm)

13

28

14

30

18

38

22

47

22

48

25

53

25

54

25

54

27

58

26

66

28

86

Movement Spring rates Welding ends

+/-LA

(mm)

7

30

6

25

6

25

8

33

6

25

5

22

4

20

4

17

3

16

3

17

2

22

Ln

(mm)

160

235

160

235

160

230

180

275

175

265

170

265

195

285

195

285

195

285

195

315

240

400

AX

kgf/mm

13.78

6.43

15.31

7.14

12.55

5.82

18.67

8.67

17.24

8.06

16.43

7.65

19.70

8.98

21.63

9.90

19.90

8.98

24.0

9.29

35.8

11.94

LA

kgf/mm

8.74

1.02

14.39

1.73

19.70

2.24

24.8

2.86

41.50

4.90

60.70

7.24

99.39

11.43

114.70

16.63

173.78

20.10

324.90

23.37

606.22

28.88

D

(mm)

48.3

48.3

60.3

60.3

76.1

76.1

88.9

88.9

114.3

114.3

139.7

139.7

168.3

168.3

193.7

193.7

219.1

219.1

273.0

273.0

323.9

323.9

L2

(mm)

40

40

40

40

40

40

40

40

40

40

40

40

50

50

50

50

50

50

50

50

70

70

S

(mm)

2.6

2.6

2.9

2.9

3.2

3.2

3.2

3.2

3.6

3.6

3.6

3.6

4.0

4.0

4.5

4.5

4.5

4.5

5.0

5.0

6.0

6.0

Di

(mm)

40.5

40.5

52.5

52.5

68.3

68.3

79.1

79.1

104.6

104.6

130.2

130.2

155.0

155.0

180.6

180.6

206.1

206.1

260.0

260.0

311.1

311.1

Do

(mm)

57.7

57.7

59.7

59.7

87.5

87.5

100.9

100.9

130.2

130.2

157.8

157.8

186.6

186.6

212.2

212.2

239.7

239.7

293.6

293.6

347.5

347.5

Bellow-

areas

(mm^2)

1893

1893

2472

2472

4766

4766

6362

6362

10825

10825

16286

16286

22912

22912

30295

30295

39022

39022

60176

60176

85167

85167

Weight

Approx

<kg>

0.3

0.5

0.5

0.6

0.7

0.9

1.1

1.5

1.5

2.0

1.9

2.7

2.8

3.6

3.7

4.6

4.3

5.3

5.8

7.5

10.8

17.9

Bellows

26



DN

350

350

400

400

450

450

500

500

550

550

600

600

700

700

800

800

900

900

1000

1000

TYPE

MAXW-0350-028-10

MAXW-0350-086-10

MAXW-0400-037-10

MAXW-0400-096-10

MAXW-0450-036-10

MAXW-0450-084-10

MAXW-0500-050-10

MAXW-0500-110-10

MAXW-0550-050-10

MAXW-0500-088-10

MAXW-0600-041-10

MAXW-0600-124-10

MAXW-0700-040-10

MAXW-0700-121-10

MAXW-0800-040-10

MAXW-0800-121-10

MAXW-0900-040-10

MAXW-0900-121-10

MAXW-1000-040-10

MAXW-1000-121-10

+/-AX

(mm)

28

86

37

96

36

84

50

110

50

88

41

124

40

121

40

121

40

121

40

121

Movement Spring rates Welding ends

+/-LA

(mm)

2

20

4

22

3

15

5

23

5

14

3

22

2

19

2

16

2

15

2

13

Ln

(mm)

240

400

265

430

265

390

305

465

305

410

275

480

280

485

280

485

280

485

280

485

AX

kgf/mm

39.08

12.96

28.98

11.12

40.41

18.37

39.29

17.86

42.55

23.57

72.24

24.08

70.10

23.37

76.73

25.65

84.18

28.06

91.94

30.61

LA

kgf/mm

793.6

37.76

477.35

34.18

866.53

96.02

585.41

67.04

765.31

153.47

2217.04

119.39

2838.57

153.37

4040.82

218.37

5580.61

301.53

7513.47

406.02

D

(mm)

355.6

355.6

406.4

406.4

457.2

457.2

508.0

508.0

558.0

558.0

609.6

609.6

711.0

711.0

813.0

813.0

914.0

914.0

1016.0

1016.0

L2

(mm)

70

70

70

70

70

70

70

70

70

70

70

70

70

70

70

70

70

70

70

70

S

(mm)

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

8.0

8.0

8.0

8.0

8.0

8.0

80

8.0

Di

(mm)

342.8

342.8

389.9

389.9

440.5

440.5

485.4

485.4

536.4

536.4

585.6

585.6

687.5

687.5

789.5

789.5

890.5

890.5

992.5

992.5

Do

(mm)

379.2

379.2

437.1

437.1

489.5

489.5

536.4

536.4

587.4

587.4

645.6

645.6

756.5

756.5

858.5

858.5

959.5

959.5

1061.5

1061.5

Bellow-

areas

(mm^2)

102354

102354

134289

134289

169823

169823

205004

205004

247975

247975

297637

297637

409415

409415

533267

533267

672006

672006

828382

828382

Weight

Approx

<kg>

13.1

20.7

17.2

27.9

19.1

30.2

22.0

33.4

25.7

31.0

30.1

49.6

39.9

67.2

49.1

80.2

55.1

90.1

61.3

100.1

Bellows




DN

4040505065658080100100125125150150175175200200250250300300350350400400450450500500550550600600

TYPE

MAXW-0040-009-20MAXW-0040-025-20MAXW-0050-010-20MAXW-0050-026-20MAXW-0065-012-20MAXW-0065-027-20MAXW-0080-012-20MAXW-0080-026-20MAXW-0100-016-20MAXW-0100-035-20MAXW-0125-016-20MAXW-0125-040-20MAXW-0150-023-20MAXW-0150-050-20MAXW-0175-023-20MAXW-0175-050-20MAXW-0200-028-20MAXW-0200-063-20MAXW-0200-028-20MAXW-0250-060-20MAXW-0300-024-20MAXW-0300-042-20MAXW-0350-023-20MAXW-0350-042-20MAXW-0400-023-20MAXW-0400-040-20MAXW-0450-023-20MAXW-0450-039-20MAXW-0500-032-20MAXW-0500-054-20MAXW-0550-032-20MAXW-0550-053-20MAXW-0600-042-20MAXW-0600-070-20

+/-AX

(mm)

9251026122712261635164023502350286328602442234223402339325432534270

Movement Spring rates

+/-LA

(mm)

3104203143143143165204184203162827

1.82

1.64

2.66

2.46

3.58

Ln

(mm)

150185155240165225190265205280210310255360255360270380285395295365310380235365240290265330265330295485

AX

kgf/mm

19.2810.713.98

12.2727.4512.4533.8815.4537.3517.0443.3716.6350.9223.1655.1025.0052.8023.9861.1227.2688.9849.3996.8453.77

136.0281.73

156.3293.78

162.5597.55

172.04103.27180.10107.96

LA

kgf/mm

20.954.18

51.733.67

68.067.76

80.319.18

139.1816.02

238.2717.04

20.32723.27

289.9033.16

347.5538.98

603.1269.18

1249.69251.94163.53331.02

3807.041022.355132.241378.374154.181112.965309.591422.554241.631135.41

D

(mm)

48.348.360.360.376.176.188.988.9

114.3114.3139.7139.7168.3168.3193.7193.7219.1219.1273.0273.0323.9323.9355.6355.6406.4406.4457.2457.2508.0508.0559.0559.0508.0508.0

L2

(mm)

40404040404040404040404050505050505050507070707070707070707070707070

S

(mm)

2.62.62.92.92.92.93.23.23.63.64.04.04.54.55.65.66.36.37.17.18.08.08.08.0

10.010.010.010.010.010.010.010.012.012.0

Di

(mm)

40.540.552.552.568.368.379.179.1

104.6104.6130.2130.2155.0155.0180.6180.6206.2206.2260.3260.3311.2311.2343.0343.0390.4390.4441.5441.5486.5486.5537.8537.8586.6586.6

Do

(mm)

57.757.770.370.388.188.1

100.7100.7131.0131.0156.6156.6186.2186.2211.8211.8242.2242.2296.3296.3349.2349.2381.0381.0440.4440.4494.5494.5541.5541.5592.8592.8651.6651.6

Bellow-

areas

(mm^2)

18931893296129614803480363486348

1089910899161511615122859228593023330233394793947960830608308563485634

102922102922135526135526172021172021207499207499250985250985301031301031

Weight

Approx

<kg>

0.30.40.50.80.71.01.01.21.62.22.13.13.75.24.76.46.79.48.8

12.313.916.715.318.422.224.027.029.730.736.633.840.352.161.3

Welding ends Bellows

28

Axial-expansion joints with fixed flange ends


DN

40

40

50

50

65

65

80

80

100

100

125

125

150

150

200

200

250

250

TYPE

MAXF-0040-013-10

MAXF-0040-028-10

MAXF-0050-014-10

MAXF-0050-030-10

MAXF-0065-018-10

MAXF-0065-038-10

MAXF-0080-022-10

MAXF-0080-047-0

MAXF-0100-022-10

MAXF-0100-048-10

MAXF-0125-025-10

MAXF-0125-053-10

MAXF-0150-025-10

MAXF-0150-054-10

MAXF-0200-027-10

MAXF-0200-058-10

MAXF-0250-026-10

MAXF-0250-066-10

+/-AX

(mm)

13

28

14

30

18

38

22

47

22

48

25

53

25

54

27

58

26

66

Movement Spring rates

+/-LA

(mm)

7

30

6

25

6

25

8

33

6

25

5

22

4

20

3

16

3

17

Ln

(mm)

110

185

115

190

115

185

140

235

135

225

135

230

140

230

145

235

145

265

AX

kgf/mm

13.78

6.43

15.31

7.14

12.55

5.82

18.67

18.67

17.24

8.06

16.43

7.65

19.69

8.78

19.90

8.98

24.08

9.29

LA

kgf/mm

8.47

1.02

14.39

1.73

19.69

2.24

21.18

2.86

10.92

4.90

60.71

7.24

99.39

11.43

173.78

20.10

324.90

23.37

D

(mm)

127

127

152

152

178

178

191

191

229

229

254

254

279

279

343

343

406

406

t

(mm)

17.5

17.5

19.5

19.5

22.5

22.5

24.0

24.0

24.0

24.0

24.0

24.0

25.5

25.5

29.0

29.0

30.5

30.5

PCD

(mm)

98.4

98.4

120.6

120.6

139.7

139.7

152.4

152.4

190.5

190.5

215.9

215.9

241.3

241.3

298.4

298.4

361.9

361.9

N

(EA)

4

4

4

4

4

4

4

4

8

8

8

8

8

8

8

8

12

12

d2

(mm)

16

16

20

20

20

20

20

20

20

20

23

23

23

23

23

23

26

26

Di

(mm)

40.5

40.5

52.5

52.5

68.3

68.3

79.1

79.1

104.6

104.6

130.2

130.2

155.0

155.0

206.1

206.1

260.0

260.0

Do

(mm)

57.7

57.7

59.7

59.7

87.5

87.5

100.9

100.9

130.2

130.2

157.8

157.8

186.6

186.6

239.7

239.7

293.6

293.6

Bellow-

areas

(mm^2)

1893

1893

2472

2472

4766

4766

6362

6362

10825

10825

16286

16286

22912

22912

39022

39022

60176

60176

Weight

Approx

<kg>

3.8

4.0

5.1

5.2

6.3

6.5

8.1

8.5

8.8

9.3

11.7

12.5

14.0

14.8

19.9

20.9

25.4

27.1

Flanges acc.to ANSI B16.5 Bellows

29




DN

300

300

350

350

400

400

450

450

500

500

600

600

TYPE

MAXF-0300-028-10

MAXF-0300-086-10

MAXF-0350-028-10

MAXF-0350-086-10

MAXF-0400-037-10

MAXF-0400-096-10

MAXF-0450-036-10

MAXF-0450-084-10

MAXF-0500-050-10

MAXF-0500-110-10

MAXF-0500-041-10

MAXF-0500-124-10

+/-AX

(mm)

28

86

28

86

37

96

36

84

50

110

41

124

Movement Spring rates Flanges acc.to ANSI B16.5

+/-LA

(mm)

2

22

2

20

4

22

3

15

5

23

3

22

Ln

(mm)

150

310

155

315

190

355

200

325

240

400

295

500

AX

kgf/mm

35.82

11.94

39.08

12.96

28.98

11.12

40.41

18.37

39.29

17.86

103.23

34.39

LA

kgf/mm

606.22

28.88

793.16

37.76

477.35

34.18

866.53

96.02

585.41

67.04

3160.24

170.61

D

(mm)

483

483

535

535

595

595

635

635

700

700

815

815

t

(mm)

32

32

35

35

37

37

40

40

43

43

48

48

PCD

(mm)

431.8

431.8

476.2

476.2

539.7

539.7

577.8

577.8

635

635

749.3

749.3

N

(EA)

12

12

12

12

16

16

16

16

20

20

20

20

d2

(mm)

26

26

29

29

29

29

32

32

32

32

35

35

Di

(mm)

311.1

311.1

342.8

342.8

389.9

389.9

440.5

440.5

485.4

485.4

585.6

585.6

Do

(mm)

347.5

347.5

379.2

379.2

437.1

437.1

489.5

489.5

536.4

536.4

645.6

645.6

Bellow-

areas

(mm^2)

85167

85167

102354

102354

134289

134289

169823

169823

205004

205004

297637

297637

Weight

Approx

<kg>

30.5

37.6

44.5

52.1

61.8

72.5

77.7

88.8

90.1

101.5

99.7

120.2

Bellows

30



DN

40

40

50

50

65

65

80

80

100

100

125

125

150

150

200

200

250

250

300

300

350

350

400

400

500

500

600

600

TYPE

MAXF-0040-009-20

MAXF-0040-025-20

MAXF-0050-010-20

MAXF-0050-026-20

MAXF-0065-012-20

MAXF-0065-027-20

MAXF-0080-012-20

MAXF-0080-026-20

MAXF-0100-016-20

MAXF-0100-035-20

MAXF-0125-016-20

MAXF-0125-040-20

MAXF-0150-023-20

MAXF-0150-050-20

MAXF-0200-028-20

MAXF-0200-063-20

MAXF-0250-028-20

MAXF-0250-060-20

MAXF-0300-024-20

MAXF-0300-042-20

MAXF-0350-023-20

MAXF-0350-042-20

MAXF-0400-023-20

MAXF-0400-040-20

MAXF-0500-032-20

MAXF-0500-054-20

MAXF-0600-042-20

MAXF-0600-070-20

+/-AX

(mm)

9

25

10

26

12

27

12

26

16

35

16

40

23

50

28

63

28

60

24

42

23

42

23

40

32

54

42

70

Movement Springrrates

+/-LA

(mm)

3

10

4

20

3

14

3

14

3

14

3

16

5

20

4

20

3

16

2

8

2

7

1.8

2

2.6

6

3.5

8

Ln

(mm)

150

185

155

240

165

225

190

265

205

280

210

310

255

360

270

380

285

395

295

365

310

380

235

265

265

440

295

485

AX

kgf/mm

19.29

10.71

34.59

13.27

27.45

12.45

33.88

15.41

7.35

17.04

43.37

16.63

50.92

23.16

52.86

23.98

61.12

27.76

88.98

49.39

96.84

53.78

136.22

81.73

172.04

97.55

180.1

107.96

LA

kgf/mm

20.92

4.18

51.73

3.67

68.06

7.76

80.30

9.18

139.18

16.02

238.3

17.04

203..27

23.27

347.55

38.98

603.16

69.18

1249.69

251.74

163.53

328.98

3807.04

1022.35

4154.18

1112.96

4241.63

1135.41

D

(mm)

156

156

165

165

191

191

210

210

254

254

279

279

318

318

381

381

445

445

520

520

585

585

650

650

775

775

915

915

t

(mm)

21.0

21.0

22.5

22.5

25.5

25.5

29.0

29.0

32.0

32.0

35.0

35.0

37.0

37.0

41.5

41.5

48.0

48.0

51.0

51.0

54.0

54.0

57.5

57.5

63.5

63.5

70.0

70.0

PCD

(mm)

114.3

114.3

127

127

149.2

149.2

168.3

168.3

200

200

234.9

234.9

269.9

269.9

330.2

330.2

387.3

387.3

450.8

450.8

514.3

514.3

571.5

571.5

685.8

685.8

812.8

812.8

N

(EA)

4

4

8

8

8

8

8

8

8

8

8

8

12

12

12

12

16

16

16

16

20

20

20

20

24

24

24

24

d2

(mm)

23

23

20

20

23

23

23

23

23

23

23

23

23

23

26

26

29

29

32

32

32

32

35

35

35

35

42

42

Di

(mm)

40.5

40.5

52.5

52.5

68.3

68.3

79.1

79.1

104.6

104.6

130.2

130.2

155.0

155.0

206.2

206.2

260.3

260.3

311.2

311.2

343.0

343.0

390.4

390.4

486.5

486.5

586.6

586.6

Do

(mm)

57.7

57.7

70.3

70.3

88.1

88.1

100.7

100.7

131.0

131.0

156.6

156.6

186.2

186.2

242.2

242.2

296.3

296.3

349.2

349.2

381.0

381.0

440.4

440.4

541.5

541.5

651.6

651.6

Bellow-

areas

(mm^2)

1893

1893

2961

2961

4803

4803

6348

6348

10899

10899

16151

16151

22859

22859

39479

39479

60830

60830

85634

85634

102922

102922

135526

135526

207499

207499

301031

301031

Weight

Approx

<kg>

4.8

4.9

5.8

6.1

7.8

8.1

9.9

10.1

13.8

14.4

19.1

20.1

25.4

26.9

37.3

40.0

52.9

56.4

67.4

70.2

99.9

103.0

133.3

135.1

192.4

198.3

236.9

246.1

Flanges acc.to ANSI B16.5 Bellows

31


MEGAFLEXON standard lateral expansion joints are available in two designs.The light design, type MLW, MLF, has tie rods which are secured to the flangesby means of nuts and a specially designed spherical disk, allowing angularmovement between bolt and flange.

The number of tie rods is dependent on diameter and pressure.MEGAFLEXON standard lateral expansion joint with tie rods is available in adesign with single or double tie rods.

The design with tie rods can only be used within a limited pressure range anda temperature range(max. 400 Deg. C).

The heavy-duty design, type LA3, LA4(fig2) has flat iron hinges which arefitted through the flanges and welded onto them on the outside. A hinge,which allows lateral movements, is mounted on the fitting above the center lineof the bellows. MEGAFLEXON standard lateral expansion joint with hinges isavailable as well in a design with a double bellows.

Common to both models is the fact that tie rods and hinges alike have the taskof absorbing the thrust forces arising from the operating pressure. The tie rodsand hinges make axial expansion impossible.

This means that a lateral expansion joint can only move sideways(laterally) onone or more planes, making it possible for those movements which areperpendicular to the longitudinal direction to be absorbed. Lateral expansionjoints are therefore ideal for installation in pipe systems with bends.

a) Advantage-Absorb thermal growth in all direction in one plane-A largely reduced load on fix point

b)Disadvantage-The changed flow direction

B. LATERAL EXPANSION JOINT

32

Universal Type Expansion Joint

DN

200

250

300

350

400

450

500

550

600

650

700

800

900

1000

1200

1500

2000

No of Convo-lution

3+3

4+4

3+3

4+4

3+3

4+4

3+3

4+4

3+3

4+4

3+3

4+4

3+3

4+4

1000

47

56

56

49

1500

84

101

107

95

78

69

65

62

54

51

44

53

39

47

35

42

28

33

2000

122

147

158

143

107

105

99

96

85

80

71

68

63

78

57

70

47

58

40

49

30

36

23

28

2500

159

193

210

190

158

141

133

130

116

109

98

124

87

109

78

98

67

84

57

71

43

53

35

43

3000

197

239

262

238

299

177

168

164

148

139

126

160

111

141

100

127

87

110

73

93

56

71

46

58

3500

234

286

314

285

239

214

203

199

179

168

153

196

135

173

122

156

106

136

90

115

69

89

58

73

4000

271

332

365

333

279

250

237

234

211

198

180

232

159

205

143

185

126

162

106

137

83

106

69

88

4500

242

227

208

269

184

238

166

215

146

188

123

159

96

124

81

104

5000

274

257

235

305

208

270

1488

244

165

215

139

181

109

142

92

120

Lateral Movement Variation (Y) (mm)

Overall Length (L) (mm)

If it’s used for a pipe that should absorb Axial variation at the same time, it must have on anchor.

33


Lateral expansion joints with welding ends


Number of tierods

DN 40 - DN 100; 2[pcs]DN 125 - DN 800; 3[pcs]DN 900; 4[pcs]DN 1000; 5[pcs]

DN

40

50

65

80

100

125

150

175

200

250

300

350

400

450

500

550

600

700

800

900

1000

TYPE

MLWS-0040-030-10

MLWS-0050-025-10

MLWS-0065-025-10

MLWS-0080-033-10

MLWS-0100-025-10

MLWS-0125-022-10

MLWS-0150-020-10

MLWS-0175-017-10

MLWS-0200-016-10

MLWS-0250-017-10

MLWS-0300-022-10

MLWS-0350-020-10

MLWS-0400-022-10

MLWS-0450-015-10

MLWS-0500-023-10

MLWS-0550-014-10

MLWS-0600-022-10

MLWS-0700-019-10

MLWS-0800-016-10

MLWS-0900-015-10

MLWS-1000-013-10

+/-AX

(mm)

30

25

25

33

25

22

20

17

16

17

22

20

22

15

23

14

22

19

16

15

13

Movem. Spring rates Welding ends DimensionsLn

(mm)

445

445

440

485

475

475

475

475

525

555

600

600

630

590

775

720

790

905

905

905

905

AX

kgf/mm

6.42

7.14

5.81

8.67

8.06

7.65

8.97

9.89

8.97

9.28

11.93

12.95

11.12

18.36

17.85

23.57

24.08

23.36

25.61

28.06

30.61

LA

kgf/mm

1.02

1.73

2.24

2.85

4.89

7.24

11.42

16.63

20.10

23.36

28.87

37.75

34.18

96.02

67.04

153.46

119.38

153.36

218.36

301.53

406.02

D

(mm)

48.3

60.3

76.1

88.9

114.3

139.7

168.3

193.7

219.1

273.0

323.9

355.6

406.4

457.2

508.0

559.0

609.6

711.0

813.0

914.0

1016.0

L2

(mm)

145

145

145

145

145

145

145

145

170

170

170

170

170

170

225

225

225

280

280

280

280

s

(mm)

2.6

2.9

2.9

3.2

3.6

4.0

4.5

5.6

5.6

6.3

8.0

8.0

8.0

8.0

8.0

10.0

10.0

10.0

10.0

10.0

10.0

HOR

(mm)

90

100

120

150

175

239

260

282

303

347

400

435

506

600

675

725

790

905

1010

1105

1210

VER

(mm)

170

180

200

210

245

235

262

295

312

368

423

460

528

600

675

725

790

905

1010

1105

1210

Di

(mm)

40.5

52.5

68.3

79.1

104.6

130.2

155.0

180.6

206.1

260.0

311.1

342.8

389.9

440.5

485.4

536.4

585.6

687.5

789.5

890.5

992.5

Do

(mm)

57.7

69.7

87.5

100.9

130.2

157.8

186.6

212.2

239.7

293.6

347.5

379.2

437.1

489.5

536.4

587.4

654.6

756.5

858.5

959.5

1061.5

Bellow-

areas

(mm^2)

1893

2932

4766

6362

10825

16286

22912

30295

39022

60176

85167

102354

134289

169823

205004

247975

302004

409415

533267

672006

828382

Weight

Approx

<kg>

4.0

4.4

5.3

8.0

9.9

13.2

15.4

22.1

22.2

29.2

46.9

56.6

78.8

99.3

148.9

157.8

210.9

306.8

383.2

448.8

504.7

Bellows

34



Number of tierods

DN 40 - DN 100; 2[pcs]DN 125 - DN 450; 3[pcs]DN 500 - DN 600; 4[pcs]

DN

40

50

65

80

100

125

150

175

200

250

300

350

400

450

500

550

600

TYPE

MLWS-0040-010-20

MLWS-0050-020-20

MLWS-0065-014-20

mLWS-0080-014-20

MLWS-0100-014-20

MLWS-0125-016-20

MLWS-0150-020-20

MLWS-0175-018-20

MLWS-0200-020-20

MLWS-0250-016-20

MLWS-0300-008-20

MLWS-0350-007-20

MLWS-0400-013-20

MLWS-0450-012-20

MLWS-0500-012-20

MLWS-0550-011-20

MLWS-0600-016-20

+/-AX

(mm)

10

20

14

14

14

16

20

18

20

16

8

7

13

12

12

11

16

Movem. Spring rates Welding endsLn

(mm)

385

435

410

435

440

465

500

500

560

560

630

630

690

810

810

810

875

AX

kgf/mm

10.71

13.26

12.44

15.40

17.04

16.63

23.16

25

23.97

27.75

49.38

53.77

45.40

52.04

69.69

73.67

77.14

LA

kgf/mm

4.18

3.67

7.75

9.18

16.02

17.04

23.26

33.16

38.97

69.18

251.93

328.97

205.61

277.24

448.26

572.85

457.04

D

(mm)

48.3

60.3

76.1

88.9

114.3

139.7

168.3

193.7

219.1

273.0

323.9

355.6

406.4

457.2

508.0

559.0

609.6

L2

(mm)

145

145

145

145

145

145

145

145

170

170

225

225

225

280

280

280

280

s

(mm)

2.6

2.9

2.9

3.2

3.6

4.0

4.5

5.6

6.3

7.1

8.0

8.0

10.0

10.0

10.0

10.0

12.0

HOR

(mm)

90

100

135

150

175

226

256

278

313

405

480

510

580

650

695

750

805

VER

(mm)

160

170

190

200

230

228

269

294

328

405

480

510

580

650

695

750

805

Di

(mm)

40.5

52.5

68.3

79.1

104.6

130.2

155.0

180.6

206.2

260.3

311.2

343.0

390.4

441.5

486.5

537.8

586.6

Do

(mm)

57.5

70.3

88.1

100.7

131.0

156.6

186.2

211.8

242.2

296.3

349.2

381.0

440.4

494.5

541.5

592.8

651.6

Bellow-

areas

(mm^2)

1886

2961

4803

6348

10899

16151

22859

30233

39479

60830

85634

102922

135526

172021

207499

250985

301031

Weight

Approx

<kg>

3.6

4.5

6.4

7.3

9.7

13.1

20.4

24.2

31.3

54.0

88.9

98.6

138.8

199.5

223.8

273.2

319.0

Dimensions Bellows

35


Lateral expansion joints with fixed flange ends


Number of tierods


DN

40

50

65

80

100

125

150

200

250

300

350

400

450

500

600

700

800

900

1000

TYPE

MLFS-0040-030-10

MLFS-0050-025-10

MLFS-0065-025-10

MLFS-0080-033-10

MLFS-0100-025-10

MLFS-0125-022-10

MLFS-0150-020-10

MLFS-0200-016-10

MLFS-0250-017-10

MLFS-0300-022-10

MLFS-0350-020-10

MLFS-0400-022-10

MLFS-0450-015-10

MLFS-0500-023-10

MLFS-0600-022-10

MLFS-0700-019-10

MLFS-0800-016-10

MLFS-0900-015-10

MLFS-1000-013-10

+/-AX

(mm)

30

25

25

33

25

22

20

16

17

22

20

22

15

23

22

19

16

15

13

Movem. Spring rates Flange ANSI B 16.5 DimensionsLn

(mm)

185

190

190

235

225

225

230

230

265

310

315

355

325

400

500

505

525

535

535

AX

kgf/mm

6.42

7.14

5.81

8.67

8.06

7.65

8.97

8.97

9.28

11.93

12.95

11.12

18.36

17.85

34.38

33.36

36.53

40.10

43.77

LA

kgf/mm

1.02

1.73

2.24

2.85

4.89

7.24

11.42

20.10

23.36

28.87

37.75

34.18

96.02

67.04

170.61

219.08

311.93

430.71

580

D

(mm)

127

152

178

191

229

254

279

343

406

483

535

595

635

700

815

927.1

1060

1168.4

1289

PCD

(mm)

98.4

120.6

139.7

152.4

190.5

215.9

241.3

298.4

361.9

431.8

476.2

539.7

577.8

635

749.3

863.6

978

1085

1200

t

(mm)

17.5

19.5

22.5

24.0

24.0

24.0

25.5

29.0

30.5

32

35

37

40

43

43

71

81

90

90

N

(EA)

4

4

4

4

8

8

8

8

12

12

12

16

16

20

20

24

28

32

36

d2

(mm)

16

20

20

20

20

23

23

23

26

26

29

29

32

32

35

35

41

41

41

HOR

(mm)

150

165

185

200

220

287

317

360

412

455

521

573

616

693

780

896

1015

1115

1306

VER

(mm)

225

240

260

275

295

288

323

378

433

483

550

610

660

730

840

965

1080

1255

1300

Di

(mm)

40.5

52.5

68.3

79.1

104.6

130.2

155.0

206.1

260.0

311.1

342.8

389.9

440.5

485.4

585.6

687.5

789.5

890.5

992.5

Do

(mm)

57.7

59.7

87.5

100.9

130.2

157.8

186.6

239.7

293.6

347.5

379.2

437.1

489.5

536.4

645.6

756.5

858.5

959.5

1061.5

Bellow-

areas

(mm^2)

1893

2472

4766

6362

10825

16286

22912

39022

60176

85167

102354

134289

169823

205004

297637

409415

533267

672006

828382

Weight

Approx

<kg>

3.4

3.7

4.4

7.8

8.3

10.9

12.3

15.4

23.8

33.3

43.6

64.4

68.8

96.5

138.6

182.4

238.5

274.9

325.7

Bellows

36



Number of tierods

DN 40 - DN 100; 2[pcs]DN 125 - DN 600; 3[pcs]DN 700; 4[pcs]DN 800; 5[pcs]DN 900; 6[pcs]DN 1000; 7[pcs]

DN

40

50

65

80

100

125

150

200

250

300

350

400

500

600

TYPE

MLFS-0040-010-20

MLFS-0050-020-20

MLFS-0065-014-20

MLFS-0080-014-20

MLFS-0100-014-20

MLFS-0125-016-20

MLFS-0150-020-20

MLFS-0200-020-20

MLFS-0250-016-20

MLFS-0300-008-20

MLFS-0350-007-20

MLFS-0400-013-20

MLFS-0500-012-20

MLFS-0600-016-20

+/-AX

(mm)

10

20

14

14

14

16

20

20

16

8

7

13

12

16

Movem. Spring rates Flange ANSI B 16.5Ln

(mm)

135

185

165

190

200

225

265

380

395

365

380

460

500

565

AX

kgf/mm

10.71

13.26

12.44

15.40

17.04

16.63

23.16

23.97

27.75

49.38

53.77

45.40

69.69

77.14

LA

kgf/mm

4.18

3.67

7.75

9.18

16.02

17.04

23.26

38.97

69.18

251.93

328.97

205.61

448.26

457.04

D

(mm)

156

165

191

210

254

279

318

381

445

520

585

650

775

915

PCD

(mm)

114.3

127

149.2

168.3

200

234.9

269.9

330.2

387.3

450.8

514.3

571.5

685.8

812.8

t

(mm)

21.0

22.5

25.5

29.0

32.0

35.0

37.0

41.5

48.0

51.0

54.0

57.5

63.5

70.0

N

(EA)

4

8

8

8

8

8

12

12

16

16

20

20

24

24

d2

(mm)

23

20

23

23

23

23

23

26

29

32

32

35

35

42

HOR

(mm)

150

165

185

200

235

304

330

395

452

532

593

649

763

845

VER

(mm)

225

240

260

275

310

308

337

405

470

545

615

680

800

985

Di

(mm)

40.5

52.5

68.3

79.1

104.6

130.2

155.0

206.2

260.3

311.2

343.0

390.4

486.5

586.6

Do

(mm)

57.7

70.3

88.1

100.7

131.0

156.6

186.2

242.2

296.3

349.2

381.0

440.4

541.5

651.6

Bellow-

areas

(mm^2)

1893

2961

4803

6348

10899

16151

22859

39479

60830

85634

102922

135526

207499

301031

Weight

Approx

<kg>

4.9

6.1

8.1

10.1

14.4

20.1

26.9

40.0

56.4

70.2

103.0

142.3

204.9

233.0

Dimensions Bellows

37



Number of tierods



DN

40

50

65

80

100

125

150

175

200

250

300

350

400

450

500

550

600

700

800

900

1000

TYPE

MLWD-0040-075-10

MLWD-0050-075-10

MLWD-0065-075-10

MLWD-0080-075-10

MLWD-0100-075-10

MLWD-0125-075-10

MLWD-0150-075-10

MLWD-0175-075-10

MLWD-0200-075-10

MLWD-0250-055-10

MLWD-0300-055-10

MLWD-0350-055-10

MLWD-0400-055-10

MLWD-0450-055-10

MLWD-0500-055-10

MLWD-0550-055-10

MLWD-0600-055-10

MLWD-0700-055-10

MLWD-0800-055-10

MLWD-0900-055-10

MLWD-1000-055-10

+/-AX

(mm)

75

75

75

75

75

75

75

75

75

55

55

55

55

55

55

55

55

55

55

55

55

Movem. Spring rates Welding endsLn

(mm)

620

630

615

615

645

660

700

745

805

765

780

815

748

805

910

945

1005

1175

1245

1315

1385

AX

kgf/mm

6.93

7.65

6.22

9.38

8.67

8.26

9.79

10.81

9.89

12.04

17.95

19.48

14.48

20.20

19.69

21.22

36.12

35.10

38.36

42.04

46.02

LA

kgf/mm

0.10

0.20

0.30

0.71

0.81

1.12

1.42

1.63

1.83

4.18

8.36

8.97

16.22

19.08

29.18

30.51

39.38

40.71

43.97

47.75

51.83

D

(mm)

48.3

60.3

76.1

88.9

114.3

139.7

168.3

193.7

219.1

273.0

323.9

355.6

406.4

457.2

508.0

559.0

609.6

711.0

813.0

914.0

1016.0

L2

(mm)

145

145

145

145

145

145

145

145

170

170

170

170

170

170

225

225

225

280

280

280

280

s

(mm)

2.6

2.9

2.9

3.2

3.6

4.0

4.5

5.6

5.6

6.3

8.0

8.0

8.0

8.0

8.0

10.0

10.0

10.0

10.0

10.0

10.0

HOR

(mm)

90

100

120

150

175

239

260

282

303

347

400

435

506

600

675

725

790

905

1010

1105

1210

VER

(mm)

170

180

200

210

245

235

262

295

312

368

423

460

528

600

675

725

790

905

1010

1105

1210

Di

(mm)

40.5

52.5

68.3

79.1

104.6

130.2

155.0

180.6

206.1

260.0

311.1

342.8

389.9

440.5

485.4

536.4

585.6

687.5

789.5

890.5

992.5

Do

(mm)

57.7

69.7

87.5

100.9

130.2

157.8

186.6

212.2

239.7

293.6

347.5

379.2

437.1

489.5

536.4

587.4

654.6

756.5

858.5

959.5

1061.5

Bellow-

areas

(mm^2)

1893

2932

4766

6362

10825

16286

22912

30295

39022

60176

85167

102354

134289

169823

205004

247975

302004

409415

533267

672006

828382

Weight

Approx

<kg>

5.4

6.3

7.3

10.5

13.5

18.5

22.8

32.7

34.6

43.0

63.0

79.9

98.9

128.5

176.8

202.7

266.3

392.1

503.3

603.6

699.1

Dimensions Bellows

38



Number of tierods

DN 40 - DN 100; 2[pcs]DN 125 - DN 450; 3[pcs]DN 550 - DN 600; 4[pcs]

DN

40

50

65

80

100

125

150

175

200

250

300

350

400

450

500

550

600

TYPE

MLWD-0040-055-20

MLWD-0050-055-20

MLWD-0065-055-20

MLWD-0080-055-20

MLWD-0100-055-20

MLWD-0125-055-20

MLWD-0150-055-20

MLWD-0175-055-20

MLWD-0200-055-20

MLWD-0250-055-20

MLWD-0300-055-20

MLWD-0350-055-20

MLWD-0400-055-20

MLWD-0450-055-20

MLWD-0500-055-20

MLWD-0550-055-20

MLWD-0600-055-20

+/-AX

(mm)

55

55

55

55

55

55

55

55

55

55

55

55

55

55

55

55

55

Movem. Spring rates Welding ends DimensionsLn

(mm)

600

610

595

640

625

670

635

670

695

755

980

970

895

1025

1070

1070

1165

AX

kgf/mm

9.69

17.24

13.67

16.93

18.67

21.63

25.40

27.55

26.42

30.61

44.48

48.36

40.81

46.93

48.77

51.53

53.97

LA

kgf/mm

0.20

0.51

0.71

0.91

2.04

2.44

6.53

7.14

11.12

12.85

13.87

18.97

39.69

52.75

62.85

80.30

77.04

D

(mm)

48.3

60.3

76.1

88.9

114.3

139.7

168.3

193.7

219.1

273.0

323.9

355.6

406.4

457.2

505.0

559.0

609.6

L2

(mm)

145

145

145

145

145

145

145

145

170

170

225

225

225

280

280

280

280

s

(mm)

2.6

2.9

2.9

3.2

3.6

4.0

4.5

5.6

6.3

8.0

8.0

8.0

10.0

10.0

10.0

10.0

12.0

HOR

(mm)

90

100

135

150

175

226

256

278

313

405

480

510

580

650

695

750

805

VER

(mm)

160

170

190

200

230

228

269

294

328

405

480

510

580

650

695

750

805

Di

(mm)

40.5

52.5

68.3

79.1

104.6

130.2

155.0

180.6

206.2

260.3

311.2

343.0

390.4

441.5

486.5

537.8

586.6

Do

(mm)

57.5

70.3

88.1

100.7

131.0

156.6

186.2

211.8

242.2

296.3

349.2

381.0

440.4

494.5

541.5

592.8

651.6

Bellow-

areas

(mm^2)

1886

2961

4803

6348

10899

16151

22859

30233

39479

60830

85634

102922

135526

172021

207499

250985

301031

Weight

Approx

<kg>

5.3

6.2

8.4

10.8

13.3

18.7

24.0

29.9

35.6

62.5

115.9

129.7

159.5

219.8

250.3

305.4

343.6

Bellows

39


Lateral expansion joints with fixed flange ands

Number of tierods



DN

40

50

65

80

100

125

150

200

250

300

350

400

450

500

600

700

800

900

1000

TYPE

MLFD-0040-075-10

MLFD-0050-075-10

MLFD-0065-075-10

MLFD-0080-075-10

MLFD-0100-075-10

MLFD-0125-075-10

MLFD-0175-075-10

MLFD-0250-075-10

MLFD-0250-055-10

MLFD-0300-055-10

MLFD-0350-055-10

MLFD-0400-055-10

MLFD-0450-055-10

MLFD-0500-055-10

MLFD-0600-055-10

MLFD-0700-055-10

MLFD-0800-055-10

MLFD-0900-055-10

MLFD-1000-055-10

+/-AX

(mm)

75

75

75

75

75

75

75

75

55

55

55

55

55

55

55

55

55

55

55

Movem. Spring rates Flanges acc. to ANSI B16.5Ln

(mm)

360

375

360

365

395

415

455

515

475

490

530

470

540

535

715

775

865

945

1015

AX

kgf/mm

9.89

10.91

8.87

13.36

12.34

11.73

13.97

14.18

17.24

25.61

27.85

20.71

28.87

28.06

51.63

50.10

54.79

60.10

65.71

LA

kgf/mm

0.20

0.30

0.40

1.02

1.22

1.63

2.04

2.55

6.02

11.93

12.85

23.16

27.24

41.63

56.22

58.16

62.85

68.26

74.08

D

(mm)

127

152

178

191

229

254

279

343

406

483

535

596

635

700

815

927.1

1060

1168.4

1289

PCD

(mm)

98.4

120.6

139.7

152.4

190.5

215.9

241.3

298.4

361.9

431.8

476.2

539.7

577.8

635

749.3

863.6

978

1085

1200

t

(mm)

17.5

19.5

22.5

24.0

24.0

24.0

25.5

29.0

30.5

32

35

37

40

43

43

71

81

90

90

N

(EA)

4

4

4

4

8

8

8

8

12

12

12

16

16

20

20

24

28

32

36

d2

(mm)

16

20

20

20

20

23

23

23

26

26

29

29

32

32

35

35

41

41

41

HOR

(mm)

150

165

185

200

220

287

317

360

412

455

521

573

616

693

780

896

1015

1115

1306

VER

(mm)

225

240

260

275

295

288

323

378

433

483

550

610

660

730

840

965

1080

1255

1300

Di

(mm)

40.5

52.5

68.3

79.1

104.6

130.2

155.0

206.1

260.0

311.1

342.8

389.9

440.5

485.4

585.6

687.5

789.5

890.5

992.5

Do

(mm)

57.7

59.7

87.5

100.9

130.2

157.8

186.6

239.7

293.6

347.5

379.2

437.1

489.5

536.4

645.6

756.5

858.5

959.5

1061.5

Bellow-

areas

(mm^2)

1893

2472

4766

6362

10825

16286

22912

39022

60176

85167

102354

134289

169823

205004

297637

409415

533267

672006

828382

Weight

Approx

<kg>

4.9

5.7

6.5

10.2

12.1

16.5

19.9

28.0

37.8

49.5

66.8

84.8

98.3

124.7

157.5

216.8

278.4

323.2

383.8

Dimensions Bellows

40



Number of tierods

DN 40 - DN 100; 2[pcs]DN 125 - DN 600; 3[pcs]DN 700; 4[pcs]DN 800; 5[pcs]DN 900; 6[pcs]DN 1000; 7[pcs]

DN

40

50

65

80

100

125

150

200

250

300

350

400

500

600

TYPE

MLFD-0040-055-20

MLFD-0050-055-20

MLFD-0065-055-20

MLFD-0080-055-20

MLFD-0100-055-20

MLFD-0125-055-20

MLFD-0150-055-20

MLFD-0200-055-20

MLFD-0250-055-20

MLFD-0300-055-20

MLFD-0350-055-20

MLFD-0400-055-20

MLFD-0500-055-20

MLFD-0600-055-20

+/-AX

(mm)

55

55

55

55

55

55

55

55

55

55

55

55

55

55

Movem. Spring rates Flanges acc. to ANSI B16.5 DimensionsLn

(mm)

345

360

350

400

385

430

400

515

590

715

720

665

760

855

AX

kgf/mm

13.77

24.69

19.59

24.18

26.73

30.91

36.32

37.75

43.67

63.57

69.08

58.36

69.69

77.14

LA

kgf/mm

0.30

0.71

1.02

1.32

2.85

3.46

9.38

15.81

18.36

19.79

27.04

56.73

89.79

110

D

(mm)

156

165

191

210

254

279

318

381

445

520

585

650

775

915

PCD

(mm)

114.3

127

149.2

168.3

200

234.9

269.9

330.2

387.3

450.8

514.3

571.5

685.8

812.8

t

(mm)

21.0

22.5

25.5

29.0

32.0

35.0

37.0

41.5

48.0

51.0

54.0

57.5

63.5

70.0

N

(EA)

4

8

8

8

8

8

12

12

16

16

20

20

24

24

d2

(mm)

23

20

23

23

23

23

23

26

29

32

32

35

35

42

HOR

(mm)

225

240

260

275

310

308

337

405

470

545

615

680

800

985

VER

(mm)

150

165

185

200

235

304

330

395

452

532

593

649

763

845

Di

(mm)

40.5

52.5

68.3

79.1

104.6

130.2

155.0

206.2

260.3

311.2

343.0

390.4

486.5

586.6

Do

(mm)

57.7

70.3

88.1

100.7

131.0

156.6

186.2

242.2

296.3

349.2

381.0

440.4

541.5

651.6

Bellow-

areas

(mm^2)

1893

2961

4803

6348

10899

16151

22859

39479

60830

85634

102922

135526

207499

301031

Weight

Approx

<kg>

4.7

5.5

8.3

10.5

15.8

21.6

23.3

38.3

57.2

88.4

122.8

151.9

213.4

280.4

Bellows

41


MEGAFLEXON standard angular expansion joints are available in two types.

Angular expansion joint type MANW & MANF is designed with flat steel fittingswhich are fitted through the flanges and welded onto them on the outside.

A cylindrical bolt, which allows angular movement in several planes, above centerline of the bellows.

The expansion joint is made with 1 bellows.The MEGAFLEXON expansion jointtype MANW is fitted with flat iron fittings which are fitted through the flanges andwelded onto them on the outside.

The fittings are secured to a middle ring with cylindrical bolts, which allowangular movement in several planes, above the center line of the bellows.The expansion joint is made with a single bellows.

Common to both types is the fact that the fittings have the task of absorbing thetensile forces arising from the operating pressure.The fitting make axial expansions impossible, which means that the expansion jointcan only absorb bending forces.

Angular expansion joints are suitable for installations where it is not possible tocreate sturdy fixing points, and in pipe systems where bending occurs.

Since the angular expansion joints can only absorb bending, at least, 2 or 3 angularexpansion joints are required everytime to ensure correct absorption of themovements.

Two angular expansion joints correspond functionally to one lateral expansionjoint, for which reason angular expansion joints are often used in pairs.

a)Advantage-Absorb a relatively large movement by means of combination of this type ofexpansion joint-A largely reduced load on fix point

b)Disadvantage-The change of flow direction-Relatively large space required on designing and installation

C. ANGULAR EXPANSION JOINT

42

Single Hinge Type Expansion Joint

1000

52

63

66

59

48

42

1500

90

109

118

107

88

78

74

63

52

2000

128

155

170

155

117

115

108

95

79

70

64

53

2500

153

201

222

203

169

151

142

126

107

95

85

73

3000

203

248

274

251

210

187

178

159

135

119

107

94

3500

240

295

326

298

250

224

213

190

162

143

129

113

4000

278

341

377

346

290

260

247

222

189

167

150

133

200

250

300

350

400

450

500

600

700

800

900

1000

No of Convol-

ution

3+3

Overall Length(mm)

310

320

365

380

405

425

445

510

550

550

550

650

Angular Rotation

(Deg.)

4.3

5.3

6.0

5.5

4.6

4.2

4.0

3.6

3.1

2.9

2.5

2.3

Dual Type Overall Length (mm)

Lateral Deflection (Y) (mm)


DN

single Type

MEGAFLEXON double hinged expansion joints have two bellows seperated by acenter spool pipe to absorb a large lateral movements.

The ability to resist pressure thrust is provided by a hinge assembly at eachbellows, which also permits angular movement in a single plane.

Unlike the tied lateral expansion joint, the thermal expansion of the entireexpansion joint is applied to the piping.

Dual Type Hinged Expansion Joints

43


Angular-expansion joints with hinge and welding ends


DN

40

40

50

50

65

65

80

80

100

100

125

125

150

150

175

175

200

200

250

250

300

300

TYPE

MANW-0040-015-10

MANW-0040-020-10

MANW-0050-015-10

MANW-0050-020-10

MANW-0065-015-10

MANW-0065-020-10

MANW-0080-015-10

MANW-0080-020-10

MANW-0100-015-10

MANW-0100-020-10

MANW-0125-015-10

MANW-0125-020-10

MANW-0150-015-10

MANW-0150-020-10

MANW-0175-014-10

MANW-0175-020-10

MANW-0200-014-10

MANW-0200-020-10

MANW-0250-010-10

MANW-0250-020-10

MANW-0300-009-10

MANW-0300-020-10

+/-ANG

(deg)

15

20

15

20

15

20

15

20

15

20

15

20

15

20

14

20

14

20

10

20

9

20

Movement Springrate Welding ends DimensionsLn

(mm)

300

375

300

375

295

370

320

415

315

405

315

405

315

405

315

405

315

405

335

455

340

500

ANG

[kgf.mm/deg]

106.12

49.48

181.63

84.79

239.48

111.73

480.10

224.08

753.57

351.63

156.83

501.73

1803.67

819.79

2624.79

1193.06

3094.89

1406.83

5787.24

2225.91

12199.28

4066.42

D

(mm)

48.3

48.3

60.3

60.3

76.1

76.1

88.9

88.9

114.3

114.3

139.7

139.7

168.3

168.3

193.7

193.7

219.1

219.1

273.0

273.0

323.9

323.9

L2

[mm]

110

110

110

110

110

110

110

110

110

110

110

110

110

110

110

110

110

110

120

120

120

120

HOR

[mm]

90

90

100

100

115

115

130

130

155

155

180

180

230

230

255

255

280

280

355

355

425

425

VER

[mm]

140

140

150

150

170

170

180

180

210

210

280

280

315

315

350

350

390

390

455

455

560

560

S

[mm]

2.6

2.6

2.9

2.9

2.9

2.9

3.2

3.2

3.6

3.6

4.0

4.0

4.5

4.5

5.6

5.6

5.6

5.6

6.3

8.0

8.0

8.0

Di

(mm)

40.5

40.5

52.5

52.5

68.3

68.3

79.1

79.1

104.6

104.6

130.2

130.2

155.0

155.0

180.6

180.6

206.1

206.1

260.0

260.0

311.1

311.1

Do

(mm)

57.7

57.7

69.7

69.7

87.5

87.5

100.9

100.9

130.2

130.2

157.8

157.8

186.6

186.6

212.2

212.2

239.7

239.7

293.6

293.6

347.5

347.5

Bellow-

areas

(mm^2)

1893

1893

2932

2932

4766

4766

6362

6362

10825

10825

16286

16286

22912

22912

30295

30295

39022

39022

60176

60176

85167

85167

Weight

Approx

(kg)

2.9

3.4

3.4

3.7

4.2

4.7

5.0

5.8

6.2

7.1

13.6

15.8

17.1

19.3

20.0

22.3

25.4

27.8

35.1

38.7

68.8

83.47

Bellows

44



DN

350

350

400

400

450

450

500

500

550

550

600

600

700

700

800

800

900

900

1000

1000

TYPE

MANW-0350-008-10

MANW-0350-020-10

MANW-0400-010-10

MANW-0400-020-10

MANW-0450-008-10

MANW-0450-015-10

MANW-0500-011-10

MANW-0500-020-10

MANW-0550-010-10

MANW-0550-014-10

MANW-0600-007-10

MANW-0600-020-10

MANW-0700-006-10

MANW-0700-019-10

MANW-0800-005-10

MANW-0800-016-10

MANW-0900-004-10

MANW-0900-015-10

MANW-1000-004-10

MANW-1000-013-10

+/-ANG

(deg)

8

20

10

20

8

15

11

20

10

14

7

20

6

19

5

16

4

15

4

13

Movement Spring rates Welding ends DimensionsLn

(mm)

340

500

365

530

395

520

435

595

435

540

405

610

410

615

440

645

440

645

440

645

ANG

[kgf.mm/deg]

15961.42

5320.51

15584.28

5993.87

27408.46

12458.36

32153.77

14615.40

42034.18

23299.48

85920

28641.02

114728.06

38242.65

163319.38

54439.79

225555.81

75185.30

303678.06

101226.02

D

(mm)

355.6

355.6

406.4

406.4

457.2

457.2

508.0

508.0

559.0

559.0

609.9

609.9

711.0

711.0

813.0

813.0

914.0

914.0

1016.0

1016.0

L2

(mm)

120

120

120

120

135

135

135

135

135

135

135

135

135

135

150

150

150

150

150

150

HOR

[mm]

455

455

505

505

575

575

630

630

680

680

750

750

870

870

995

995

1095

1095

1215

1215

VER

[mm]

590

590

645

645

710

710

755

755

805

805

885

885

1035

1035

1150

1150

1250

1250

1365

1365

S

(mm)

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

Di

(mm)

342.8

342.8

389.9

389.9

440.5

440.5

485.4

485.4

536.4

536.4

585.6

585.6

587.5

587.5

789.5

789.5

890.5

890.5

992.5

992.5

Do

(mm)

379.2

379.2

437.1

437.1

489.5

489.5

536.4

536.4

587.4

587.4

645.6

645.6

756.5

756.5

858.5

858.5

959.5

959.5

1061.5

1061.5

Bellow-

areas

(mm^2)

102354

102354

134289

134289

169823

169823

205004

205004

247975

247975

297637

297637

409415

409415

533267

533267

672006

672006

828382

828382

Weight

Approt

(kg)

74.1

89.2

92.6

111.1

112.7

129.6

123.9

142.8

147.0

157.3

188.3

217.5

278.4

322.4

371.1

418.9

411.7

466.0

516.3

577.7

Bellows

45




DN

40

40

50

50

65

65

80

80

100

100

125

125

150

150

175

175

200

200

TYPE

MANW-0040-015-20

MANW-0040-020-20

MANW-0050-015-20

MANW-0050-020-20

MANW-0065-015-20

MANW-0065-020-20

MANW-0080-015-20

MANW-0080-020-20

MANW-0100-015-20

MANW-0100-020-20

MANW-0125-012-20

MANW-0125-020-20

MANW-0150-015-20

MANW-0150-020-20

MANW-0175-014-20

MANW-0175-020-20

MANW-0200-015-20

MANW-0200-020-20

+/-ANG

(deg)

15

20

15

20

15

20

15

20

15

20

12

20

15

20

14

20

15

20


(mm)

280

315

280

365

280

340

290

365

295

370

295

395

345

450

345

450

350

460

ANG

[kgf.mm/deg]

148.57

82.55

417.75

160.71

534.38

242.85

868.36

394.69

1650.71

750.30

2825.30

1086.63

4707.65

2139.79

6714.69

3052.14

8426.73

3830.30

D

(mm)

48.3

48.3

60.3

60.3

76.1

76.1

88.9

88.9

114.3

114.3

139.7

139.7

168.3

168.3

193.7

193.7

219.1

219.1

L2

(mm)

110

110

110

110

110

110

110

110

110

110

110

110

120

120

120

120

120

120

HOR

[mm]

140

140

150

150

170

170

230

230

260

260

285

285

325

325

360

360

450

450

VER

[mm]

90

90

100

100

115

115

150

150

175

175

200

200

250

250

275

275

320

320

S

(mm)

2.6

2.6

2.9

2.9

2.9

2.9

3.2

3.2

3.6

3.6

4.0

4.0

4.5

4.5

5.6

5.6

6.3

6.3

Di

(mm)

40.5

40.5

52.5

52.5

68.3

68.3

79.1

79.1

104.6

104.6

130.2

130.2

155.0

155.0

180.6

180.6

206.2

206.2

Do

(mm)

57.7

57.7

70.3

70.3

88.1

88.1

100.7

100.7

131.0

131.0

156.6

156.6

186.2

186.2

211.8

211.8

242.2

242.2

Bellow-

areas

(mm^2)

1893

1893

2961

2961

4803

4803

6348

6348

10899

10899

16151

16151

22859

22859

30233

30233

39479

39479

Weight

Approx

(kg)

2.9

3.1

3.6

4.2

4.2

4.7

11.3

12.7

13.3

15.1

17.1

19.7

23.7

26.9

27.5

30.9

55.3

63.1

Bellows

46



DN

250

250

300

300

350

350

400

400

450

450

500

500

550

550

600

600

TYPE

MANW-0250-012-20

MANW-0250-020-20

MANW-0300-008-20

MANW-0300-015-20

MANW-0350-007-20

MANW-0350-013-20

MANW-0400-010-20

MANW-0400-019-20

MANW-0450-009-20

MANW-0450-017-20

MANW-0500-012-20

MANW-0500-017-20

MANW-0550-011-20

MANW-0550-015-20

MANW-0600-012-20

MANW-0600-018-20

+/-ANG

(deg)

12

20

8

15

7

13

10

19

9

17

12

17

11

15

12

18


(mm)

380

490

380

450

380

450

415

510

450

550

490

550

490

550

535

615

ANG

[kgf.mm/deg]

14962.75

6801.22

30607.85

17004.38

39959.79

22199.89

45668.67

24775.71

64981.22

36100.71

81412.75

58151.93

104057.14

74326.63

130934.89

93524.89

D

(mm)

273.0

273.0

323.9

323.9

355.6

355.6

406.4

406.4

457.2

457.2

508.0

508.0

559.0

559.0

609.6

609.6

L2

(mm)

135

135

135

135

135

135

135

135

150

150

150

150

150

150

150

150

HOR

[mm]

515

515

570

570

610

610

720

720

785

785

830

830

885

885

950

950

VER

[mm]

395

395

445

445

495

495

565

565

635

635

690

690

740

740

810

810

S

(mm)

71

71

8.0

8.0

8.0

8.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

12.0

12.0

Di

(mm)

260.3

260.3

311.2

311.2

343.0

343.0

393.9

393.9

441.5

441.5

486.5

486.5

537.8

537.8

586.6

586.6

Do

(mm)

296.3

296.3

349.2

349.2

381.0

381.0

443.9

443.9

494.5

494.5

541.5

541.5

592.8

592.8

651.6

651.6

Bellow-

areas

(mm^2)

60830

60830

85634

85634

102922

102922

137819

137819

172021

172021

207499

207499

250985

250985

301031

301031

Weight

Approx

(kg)

78.3

87.0

96.7

102.8

112.2

118.6

177.5

192.5

227.8

245.9

266.5

277.3

296.3

308.4

387.6

407.0

Bellows

47


Angular-expansion joints with hinge fixed flange ends


DN

40

40

50

50

65

65

80

80

100

100

125

125

150

150

200

200

250

250

TYPE

MANF-0040-015-10

MANF-0040-020-10

MANF-0050-015-10

MANF-0050-020-10

MANF-0065-015-10

MANF-0065-020-10

MANF-0080-015-10

MANF-0080-020-10

MANF-0100-015-10

MANF-0100-020-10

MANF-0125-015-10

MANF-0125-020-10

MANF-0150-015-10

MANF-0150-020-10

MANF-0200-014-10

MANF-0200-020-10

MANF-0250-010-10

MANF-0250-020-10

+/-ANG

(deg)

15

20

15

20

15

20

15

20

15

20

15

20

15

20

14

20

10

20

Movement Spring rates Flanges acc. to ANSI B16.5 DimensionsLn

(mm)

95

170

95

170

90

165

115

210

110

200

115

210

120

210

130

220

130

250

ANG

[kgf.mm/deg]

106.12

49.48

181.63

84.79

239.48

111.73

480.10

224.08

753.57

351.63

1075.20

501.73

1803.67

819.79

3094.89

1406.83

5787.24

2225.91

t

[mm]

17.5

17.5

19.5

19.5

22.5

22.5

24

24

24

24

24

24

25.5

25.5

29.0

29.5

30.5

30.5

PCD

[mm]

98.4

98.4

120.6

120.6

139.7

139.7

152.4

152.4

190.5

190.5

215.9

215.9

241.3

241.3

298.4

298.4

361.9

361.9

HOR

[mm]

150

150

165

165

185

185

200

200

220

220

250

250

285

285

340

340

395

395

VER

[mm]

215

215

230

230

250

250

265

265

285

285

365

365

400

400

475

475

530

530

N

[EA]

4

4

4

4

4

4

4

4

8

8

8

8

8

8

8

8

12

12

d2

[mm]

16

16

20

20

20

20

20

20

20

20

23

23

23

23

23

23

26

26

Di

(mm)

40.5

40.5

52.5

52.5

68.3

68.3

79.1

79.1

104.6

104.6

130.2

130.2

155.0

155.0

106.1

206.1

260.0

260.0

Do

(mm)

57.7

57.7

69.7

69.7

87.5

87.5

100.9

100.9

130.2

130.2

157.8

157.8

186.6

186.6

239.7

239.7

293.6

293.6

Bellow-

areas

(mm^2)

1893

1893

2932

2932

4766

4766

6362

6362

10825

10825

16286

16286

22912

22912

39022

39022

60176

60176

Weight

Approx

(kg)

2.8

3.2

3.1

3.5

3.8

4.2

4.2

5.0

4.5

5.4

8.0

10.3

13.2

15.4

21.1

23.6

23.8

27.3

Bellows

48



DN

300

300

350

350

400

400

450

450

500

500

600

600

700

700

800

800

900

900

1000

1000

TYPE

MANF-0300-009-10

MANF-0300-020-10

MANF-0350-008-10

MANF-0350-020-10

MANF-0400-010-10

MANF-0400-020-10

MANF-0450-008-10

MANF-0450-015-10

MANF-0500-011-10

MANF-0500-020-10

MANF-0600-007-10

MANF-0600-020-10

MANF-0700-006-10

MANF-0700-019-10

MANF-0800-005-10

MANF-0800-016-10

MANF-0900-004-10

MANF-0900-015-10

MANF-1000-004-10

MANF-1000-013-10

+/-ANG

(deg)

9

20

8

20

10

20

8

15

11

20

7

20

6

19

5

16

4

15

4

13

Movement Spring rates Flanges acc. to ANSI B16.5 DimensionsLn

(mm)

145

305

145

305

180

345

180

305

220

380

200

405

215

420

225

430

235

440

245

450

ANG

[kgf.mm/deg]

12199.28

4066.42

15961.42

5320.51

15584.28

5993.97

27408.46

12458.36

32153.77

14615.40

85920

28640

114728.06

38242.65

163319.38

54439.79

225555.81

75185.30

303678.06

101226.02

t

[mm]

32

32

35

35

37

37

40

43

43

43

43

43

71

71

81

81

90

90

90

90

PCD

mm]

431.8

431.8

476.2

476.2

539.7

539.7

577.8

577.8

635

635

749.3

749.3

863.6

863.6

978

978

1085

1085

1200

1200

HOR

[mm]

445

445

505

505

565

565

615

615

670

670

780

780

895

895

1015

1015

1115

1115

1230

1230

VER

[mm]

630

630

690

690

760

760

810

810

865

865

985

985

1140

1140

1280

1280

1390

1390

1515

1515

N

[EA]

12

12

12

12

16

16

16

16

20

20

20

20

24

24

28

28

32

32

36

36

d2

[mm]

26

26

29

29

29

29

32

32

32

32

35

35

35

35

41

41

41

41

41

41

Di

(mm)

311.1

311.1

342.8

342.8

389.9

389.9

440.5

440.5

485.4

485.4

585.6

585.6

687.5

687.5

789.5

789.5

890.5

890.5

992.5

992.5

Do

(mm)

347.5

347.5

379.2

379.2

437.1

437.1

489.5

489.5

536.4

536.4

645.6

645.6

756.5

756.5

858.5

858.5

959.5

959.5

1061.5

1061.5

Bellow-

areas

(mm^2)

85167

85167

102354

102354

134289

134289

169823

169823

205004

205004

297637

297637

409415

409415

533267

533267

672006

672006

828382

828382

Weight

Approx

(kg)

49.2

63.8

57.1

72.2

77.7

96.1

82.0

98.9

88.5

107.4

114.4

143.6

179.4

223.5

229.6

277.4

268.3

322.6

337.3

398.6

Bellows

49




DN

40

40

50

50

65

65

80

80

100

100

125

125

150

150

TYPE

MANF-0040-015-20

MANF-0040-020-20

MANF-0050-015-20

MANF-0050-020-20

MANF-0065-015-20

MANF-0065-020-20

MANF-0080-015-20

MANF-0080-020-20

MANF-0100-015-20

MANF-0100-020-20

MANF-0125-012-20

MANF-0125-020-20

MANF-0150-015-20

MANF-0150-020-20

+/-ANG

(deg)

15

20

15

20

15

20

15

20

15

20

12

20

15

20

Movement Spring rates Flanges acc. to ANSI B16.5Ln

(mm)

75

110

75

160

85

145

95

170

110

185

110

210

140

245

ANG

[kgf.mm/deg]

148.57

82.55

417.75

160.71

534.38

242.85

868.36

394.69

1650.71

750.30

2825.30

1086.63

4707.65

2139.79

t

[mm]

21

21

22.5

22.5

25.5

25.5

29.0

29.0

32.0

32.0

35.0

35.0

37.0

37.0

PCD

[mm]

114.3

114.3

127

127

149.2

149.2

168.3

168.3

200

200

234.9

234.9

269.9

269.9

HOR

[mm]

150

150

165

165

185

185

200

200

235

235

270

270

300

300

VER

[mm]

215

215

230

230

260

260

315

315

360

360

395

395

425

425

N

[EA]

4

4

8

8

8

8

8

8

8

8

8

8

12

12

d2

[mm]

23

23

20

20

23

23

23

23

23

23

23

23

23

23

Di

(mm)

40.5

40.5

52.5

52.5

68.3

68.3

79.1

79.1

104.6

104.6

130.2

130.2

155.0

155.0

Do

(mm)

57.7

57.7

70.3

70.3

88.1

88.1

100.7

100.7

131.0

131.0

156.6

156.6

186.2

186.2

Bellow-

areas

(mm^2)

1893

1893

2961

2961

4803

4803

6348

6348

10899

10899

16151

16151

22859

22859

Weight

Approx

(kg)

2.7

2.9

3.2

3.8

5.7

6.2

9.7

11.1

15.6

17.4

17.7

20.3

21.3

24.4

Dimensions Bellows

50



DN

200

200

250

250

300

300

350

350

400

400

500

500

600

600

TYPE

MANF-0200-015-20

MANF-0200-020-20

MANF-0250-012-20

MANF-0250-020-20

MANF-0300-008-20

MANF-0300-015-20

MANF-0350-007-20

MANF-0350-013-20

MANF-0400-010-20

MANF-0400-019-20

MANF-0500-012-20

MANF-0500-017-20

MANF-0600-012-20

MANF-0600-018-20

+/-ANG

(deg)

15

20

12

20

8

15

7

13

10

19

12

17

12

18

Movement Springrate Flanges acc. to ANSI B16.5Ln

(mm)

165

275

165

275

175

245

185

255

230

325

285

345

340

420

ANG

[kgf.mm/deg]

8426.73

3830.30

14962.75

6801.22

30607.85

17004.38

39959.79

22199.89

45668.67

24775.71

81412.75

58151.93

28894.08

93524.89

t

[mm]

41.5

41.5

48.0

48.0

51.0

51.0

54.0

54.0

57.5

57.5

63.5

63.5

70.0

70.0

PCD

[mm]

330.2

330.2

387.3

387.3

450.8

450.8

514.3

514.3

571.5

571.5

685.8

685.8

812.8

812.8

HOR

[mm]

360

360

425

425

485

485

555

555

620

620

730

730

845

845

VER

[mm]

555

555

620

620

690

690

770

770

885

885

1005

1005

1120

1220

N

[EA]

12

12

16

16

16

16

20

20

20

20

24

24

24

24

d2

[mm]

26

26

29

29

32

32

32

32

35

35

35

35

42

42

Di

(mm)

206.2

206.2

260.3

260.3

311.2

311.2

343.0

343.0

393.9

393.9

486.5

486.5

586.6

586.6

Do

(mm)

242.2

242.2

296.3

296.3

349.2

349.2

381.0

381.0

443.9

443.9

541.5

541.5

651.6

651.6

Bellow-

areas

(mm^2)

39479

39479

60830

60830

85634

85634

102922

102922

137819

137819

207499

207499

301031

301031

Weight

Approx

(kg)

57.3

65.2

66.7

75.4

85.8

91.9

122.1

128.5

193.1

208.0

252.8

263.6

360.5

379.9

Dimensions Bellows

51


This type of expansion joint has similar structure with a hinged expansion jointsand is designed to permit angular rotation in any plane by the use of two pairs ofhinges affixed to a common floating gimbal ring. Normally, the thermal growthfrom two different directions on two planes are absorbed by two pair of this typeexpansion joints, that is, the double gimbal type expansion joint.

In disigning, the thrust of the expansion joint, which is developed from internalpressure and extraneous force, should be carefully considered to be retained by thehardware, including gimbal ring, hinges and pins.

MEGAFLEXON Double Gimbal Expansion Joint are similar to the hingeduniversal except that the two joints are gimbal type. The advantage of thisarrangement is the ability to absorb a large lateral movement in any plane at eachend. Because the gimbals are attached to each end of the bellows, the thermalexpansion of the intermediate pipe will not be absorbed by the universal but mustbe accepted by the adjacent pipeing.

service pressure : 1-20kgf/cm2

Single Gimbal Ttpe

Y

D. GIMBAL TYPE EXPANSION JOINT

52

PG

Dual Gimbal Type Expansion Joint

1000

52

63

66

59

48

42

1500

90

109

118

107

88

78

74

63

52

2000

128

155

170

155

117

115

108

95

79

70

64

53

2500

153

201

222

203

169

151

142

126

107

95

85

73

3000

203

248

274

251

210

187

178

159

135

119

107

94

3500

240

295

326

298

250

224

213

190

162

143

129

113

4000

278

341

377

346

290

260

247

222

189

167

150

133

DN

200

250

300

350

400

450

500

600

700

800

900

1000

Single TypeNo of Convol-

ution

3+3

Face ToFace Length

(mm)

310

320

365

380

405

425

445

510

550

550

550

650

Angular Rotation

(Deg.)

4.3

5.3

6.0

5.5

4.6

4.2

4.0

3.6

3.1

2.9

2.5

2.3

Dual Type Overall Length (mm)

Lateral deflection (Y) (mm)


53


Gimbal expansion joints with gimbal unit and welding ends


DN

40

40

50

50

65

65

80

80

100

100

125

125

150

150

175

175

200

200

250

250

300

300

TYPE

MGWS-0040-015-10

MGWS-0040-020-10

MGWS-0050-015-10

MGWS-0050-020-10

MGWS-0065-015-10

MGWS-0065-020-10

MGWS-0080-015-10

MGWS-0080-020-10

MGWS-0100-015-10

MGWS-0100-020-10

MGWS-0125-015-10

MGWS-0125-020-10

MGWS-0150-015-10

MGWS-0150-020-10

MGWS-0175-014-10

MGWS-0175-020-10

MGWS-0200-014-10

MGWS-0200-020-10

MGWS-0250-010-10

MGWS-0250-020-10

MGWS-0300-009-10

MGWS-0300-020-10

+/-ANG

(deg)

15

20

15

20

15

20

15

20

15

20

15

20

15

20

14

20

14

20

10

20

9

20

Movement Springrate Welding endsLn

(mm)

300

375

300

375

295

370

320

415

315

405

310

405

315

405

315

405

315

405

335

455

340

500

ANG

[kgf.mm/deg]

106.12

49.48

181.63

84.79

239.48

111.73

480.10

224.08

753.57

351.63

1075.20

501.73

1803.67

819.79

2624.79

1193.06

3094.897

1406.83

5787.24

2225.91

12199.28

4038.87

D

(mm)

48.3

48.3

60.3

60.3

76.1

76.1

88.9

88.9

114.3

114.3

139.7

139.7

168.3

168.3

193.7

193.7

219.1

219.1

273.0

273.0

323.9

323.9

L2

[mm]

110

110

110

110

110

110

110

110

110

110

110

110

110

110

110

110

110

110

120

120

120

120

HOR

[mm]

140

140

150

150

170

170

180

180

210

210

280

280

315

315

350

350

390

390

455

455

560

560

VER

[mm]

110

110

120

120

140

140

150

150

180

180

240

240

265

265

300

300

340

340

395

395

480

480

S

[mm]

2.6

2.6

2.9

2.9

2.9

2.9

3.2

3.2

3.6

3.6

4.0

4.0

4.5

4.5

5.6

5.6

5.6

5.6

6.3

6.3

8.0

8.0

Di

(mm)

40.5

40.5

52.5

52.5

68.3

68.3

79.1

79.1

104.6

104.6

130.2

130.2

155.0

155.0

180.6

180.6

206.1

206.1

260.0

260.0

311.1

311.1

Do

(mm)

57.7

57.7

69.7

69.7

87.5

87.5

100.9

100.9

130.2

130.2

157.8

157.8

186.6

186.6

212.2

212.2

239.7

239.7

293.6

293.6

347.5

347.5

Bellow-

areas

(mm^2)

1893

1893

2932

2932

4766

4766

6362

6362

10825

10825

16286

16286

22912

22912

30295

30295

39022

39022

60176

60176

85167

85167

Weight

Approx

(kg)

2.9

3.4

3.4

3.7

4.2

4.7

5.0

5.8

6.2

7.1

11.9

14.2

17.1

19.3

20.0

22.3

22.3

24.7

35.1

38.7

68.8

83.4

Dimensions Bellows

54



DN

350

350

400

400

450

450

500

500

550

550

600

600

700

700

800

800

900

900

1000

1000

TYPE

MGWS-0350-008-10

MGWS-0350-020-10

MGWS-0400-010-10

MGWS-0400-020-10

MGWS-0450-008-10

MGWS-0450-015-10

MGWS-0500-011-10

MGWS-0500-020-10

MGWS-0550-010-10

MGWS-0550-014-10

MGWS-0600-007-10

MGWS-0600-020-10

MGWS-0700-006-10

MGWS-0700-019-10

MGWS-0800-005-10

MGWS-0800-016-10

MGWS-0900-004-10

MGWS-0900-015-10

MGWS-1000-004-10

MGWS-1000-013-10

+/-ANG

(deg)

8

20

10

20

8

15

11

20

10

14

7

20

6

19

5

16

4

15

4

13

Movement Springrate Welding ends DimensionsLn

(mm)

340

500

365

530

395

520

435

595

435

540

405

610

410

615

440

645

440

645

440

645

ANG

[kgf.mm/deg]

15961.42

5320.51

15584.28

5993.97

27408.46

12458.36

32153.77

14615.40

42034.18

23299.48

85920

28640

114728.06

38242.65

163319.38

54439.79

225555.81

75185.30

303678.06

101226.02

D

[mm]

355.6

355.6

406.4

406.4

457.2

457.2

508.0

508.0

559.0

559.0

609.9

609.9

711.0

711.0

813.0

813.0

914.0

914.0

1016.0

1016.0

L2

[mm]

120

120

120

120

135

135

135

135

135

135

135

135

135

135

150

150

150

150

150

150

HOR

[mm]

590

590

645

645

710

710

755

755

805

805

885

885

1035

1035

1150

1150

1250

1250

1365

1365

VER

[mm]

510

510

565

565

620

620

665

665

715

715

785

785

915

915

1020

1020

1120

1120

1225

1225

S

[mm]

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

Di

(mm)

342.8

342.8

389.9

389.9

440.5

440.5

485.4

485.4

536.4

536.4

585.6

585.6

687.5

687.5

789.5

789.5

890.5

890.5

992.5

992.5

Do

(mm)

379.2

379.2

437.1

437.1

489.5

489.5

536.4

536.4

587.4

587.4

645.6

645.6

756.5

756.5

858.5

858.5

959.5

959.5

1061.5

1061.5

Bellow-

areas

(mm^2)

102354

102354

134289

134289

169823

169823

205004

205004

247975

247975

297637

297637

409415

409415

533267

533267

672006

672006

828382

828382

Weight

Approx

(kg)

74.1

89.2

84.2

102.7

112.7

129.6

123.9

142.8

134.9

145.2

173.1

202.3

257.9

302.0

345.7

393.6

383.9

438.2

483.2

544.5

Bellows

55




DN

40

40

50

50

65

65

80

80

100

100

125

125

150

150

175

175

200

200

TYPE

MGWS-0040-020-20

MGWS-0040-030-20

MGWS-0050-018-20

MGWS-0050-030-20

MGWS-0065-018-20

MGWS-0065-030-20

MGWS-0080-015-20

MGWS-0080-030-20

MGWS-0100-015-20

MGWS-0100-030-20

MGWS-0125-012-20

MGWS-0125-030-20

MGWS-0150-015-20

MGWS-0150-030-20

MGWS-0175-014-20

MGWS-0175-030-20

MGWS-0200-015-20

MGWS-0200-030-20

+/-ANG

(deg)

20

30

18

30

18

30

15

30

15

30

12

30

15

30

14

30

15

30

Movement Springrate WeldingendsLn

(mm)

280

315

280

365

280

340

290

365

295

370

295

395

345

450

345

450

350

460

ANG

[kgf.mm/deg]

148.57

82.55

417.75

160.71

534.38

242.85

868.36

394.69

1650.71

750.30

2825.30

1086.63

4707.65

2139.79

6714.69

3052.14

8426.73

3830.30

D

[mm]

48.3

48.3

60.3

60.3

76.1

76.1

88.9

88.9

114.3

114.3

139.7

139.7

168.3

168.3

193.7

193.7

219.1

219.1

L2

[mm]

130

130

130

130

130

130

130

130

130

130

135

135

135

135

135

135

140

140

HOR

[mm]

110

110

120

120

140

140

180

180

210

210

235

235

265

265

300

300

370

370

VER

[mm]

140

140

150

150

170

170

230

230

260

260

285

285

325

325

360

360

450

450

S

[mm]

2.6

2.6

2.9

2.9

2.9

2.9

3.2

3.2

3.6

3.6

4.0

4.0

4.5

4.5

5.6

5.6

6.3

6.3

Di

(mm)

40.5

40.5

52.5

52.5

68.3

68.3

79.1

79.1

104.6

104.6

130.2

130.2

155.0

155.0

180.6

180.6

206.2

206.2

Do

(mm)

57.7

57.7

70.3

70.3

88.1

88.1

100.7

100.7

131.0

131.0

156.6

156.6

186.2

186.2

211.8

211.8

242.2

242.2

Bellow-

areas

(mm^2)

1893

1893

2961

2961

4803

4803

6348

6348

10899

10899

16151

16151

22859

22859

30233

30233

39479

39479

Weight

Approx

(kg)

3.8

4.1

4.7

5.7

5.3

6.1

15.9

18.5

18.0

20.9

19.8

23.9

29.3

34.1

33.0

38.0

72.1

85.1

Dimensions Bellows

56



DN

250

250

300

300

350

350

400

400

450

450

500

500

550

550

600

600

TYPE

MGWS-0250-012-20

MGWS-0250-025-20

MGWS-0300-008-20

MGWS-0300-015-20

MGWS-0350-007-20

MGWS-0350-013-20

MGWS-0400-010-20

MGWS-0400-019-20

MGWS-0450-009-20

MGWS-0450-017-20

MGWS-0500-012-20

MGWS-0500-017-20

MGWS-0550-011-20

MGWS-0550-015-20

MGWS-0600-012-20

MGWS-0600-018-20

+/-ANG

(deg)

12

25

8

15

7

13

10

19

9

17

12

17

11

15

12

18

Movement Springrate WeldingendsLn

(mm)

380

490

380

450

380

450

415

510

450

550

490

550

490

550

535

615

ANG

[kgf.mm/deg]

14962.75

6801.22

30607.85

17004.38

39959.79

22199.89

45668.67

24775.71

64981.22

36100.71

81412.75

58151.93

104057.14

74326.53

130934.89

93524.89

D

[mm]

273.0

273.0

323.9

323.9

355.6

355.6

406.4

406.4

457.2

457.2

508.0

508.0

559.0

559.0

609.6

609.6

L2

[mm]

160

160

180

180

185

185

220

220

220

220

220

220

225

225

225

225

HOR

[mm]

425

425

480

480

510

510

600

600

655

655

700

700

755

755

810

810

VER

[mm]

515

515

570

570

610

610

720

720

785

785

830

830

885

885

950

950

S

[mm]

7.1

7.1

8.0

8.0

8.0

8.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

10.0

11.0

11.0

Di

(mm)

260.3

260.3

311.2

311.2

343.0

343.0

393.9

393.9

441.5

441.5

486.5

486.5

537.8

537.8

586.6

586.6

Do

(mm)

296.3

296.3

349.2

349.2

381.0

381.0

443.9

443.9

494.5

494.5

541.5

541.5

592.8

592.8

651.6

651.6

Bellow-

areas

(mm^2)

60830

60830

85634

85634

102922

102922

137819

137819

172021

172021

207499

207499

250985

250985

301031

301031

Weight

Approx

(kg)

96.7

110.5

106.8

116.2

130.9

140.6

212.7

235.4

265.9

292.1

290.5

306.2

325.4

343.2

426.4

454.6

Dimensions Bellows

57


Gimbal expansion joints with gimbal unit and Fixed Flange ends


DN

40

40

50

50

65

65

80

80

100

100

125

125

150

150

200

200

250

250

TYPE

MGFS-0040-015-10

MGFS-0040-020-10

MGFS-0050-015-10

MGFS-0050-020-10

MGFS-0065-015-10

MGFS-0065-020-10

MGFS-0080-015-10

MGFS-0080-020-10

MGFS-0100-015-10

MGFS-0100-020-10

MGFS-0125-015-10

MGFS-0125-020-10

MGFS-0150-015-10

MGFS-0150-020-10

MGFS-0200-014-10

MGFS-0200-020-10

MGFS-0250-010-10

MGFS-0250-020-10

+/-ANG

(deg)

15

20

15

20

15

20

15

20

15

20

15

20

15

20

14

20

10

20

Movement Spring rates Flanges acc. to ANSI B 16.5Ln

(mm)

95

170

95

170

90

165

115

210

110

200

115

210

120

210

130

220

130

250

ANG

[kgf.mm/deg]

106.12

49.48

181.63

84.79

239.48

111.73

480.10

224.08

753.57

351.63

1075.20

501.73

1803.67

819.79

3094.89

1406.83

5787.24

2225.91

t

[mm]

17.5

17.5

19.5

19.5

22.5

22.5

24

24

24

24

24

24

25.5

25.5

29.0

29.0

30.5

30.5

PCD

[mm]

98.4

98.4

120.6

120.6

139.7

139.7

152.4

152.4

190.5

190.5

215.9

215.9

241.3

241.3

298.4

298.4

361.9

361.9

HOR

[mm]

150

150

165

165

185

185

200

200

220

220

250

250

285

285

340

340

395

395

VER

[mm]

215

215

230

230

250

250

265

265

285

285

365

365

400

400

475

475

530

530

N

[EA]

4

4

4

4

4

4

4

4

8

8

8

8

8

8

8

8

12

12

d2

[mm]

16

16

20

20

20

20

20

20

20

20

23

23

23

23

23

23

26

26

Di

(mm)

40.5

40.5

52.5

52.5

68.3

68.3

79.1

79.1

104.6

104.6

130.2

130.2

155.0

155.0

206.1

206.1

260.0

260.0

Do

(mm)

57.7

57.7

69.7

69.7

87.5

87.5

100.9

100.9

130.2

130.2

157.8

157.8

186.6

186.6

239.7

239.7

293.6

293.6

Bellow-

areas

(mm^2)

1893

1893

2932

2932

4766

4766

6362

6362

10825

10825

16286

16286

22912

22912

39022

39022

60176

60176

Weight

Approx

(kg)

3.9

4.3

4.4

4.7

5.4

5.9

6.0

6.8

7.3

8.1

20.8

19.8

23.7

25.9

36.2

38.6

45.2

48.8

Dimensions Bellows

58

Gimbal expansion joints with gimbal unit and fixed flange ends


DN

300

300

350

350

400

400

450

450

500

500

600

600

700

700

800

800

900

900

1000

1000

TYPE

MGFS-0300-009-10

MGFS-0300-020-10

MGFS-0350-008-10

MGFS-0350-020-10

MGFS-0400-010-10

MGFS-0400-020-10

MGFS-0450-008-10

MGFS-0450-015-10

MGFS-0500-011-10

MGFS-0500-020-10

MGFS-0600-007-10

MGFS-0600-020-10

MGFS-0700-006-10

MGFS-0700-019-10

MGFS-0800-005-10

MGFS-0800-016-10

MGFS-0900-004-10

MGFS-0900-015-10

MGFS-1000-004-10

MGFS-1000-013-10

+/-ANG

(deg)

9

20

8

20

10

20

8

15

11

20

7

20

6

19

5

16

4

15

4

13

Movement Springrate Flanges acc.to ANSI B 16.5 DimensionsLn

(mm)

145

305

145

305

180

345

180

305

220

380

200

405

215

420

225

430

235

440

245

450

ANG

[kgf.mm/deg]

12199.28

4066.42

15961.42

5320.51

15584.28

5993.97

27408.46

12458.36

32153.77

14615.40

85920

28640

114728.06

38242.65

16329.59

54439.79

225555.81

75185.30

303678.06

101226.02

t

[mm]

32

32

35

35

37

37

40

43

43

43

43

43

71

71

81

81

90

90

90

90

PCD

[mm]

431.8

431.8

476.2

476.2

539.7

539.7

577.8

577.8

635

635

749.3

749.3

863.6

863.6

978

978

1085

1085

1200

1200

HOR

[mm]

445

445

505

505

565

565

615

615

670

670

780

780

895

895

1015

1015

1115

1115

1230

1230

VER

[mm]

630

630

690

690

760

760

810

810

865

865

985

985

1140

1140

1280

1280

1390

1390

1515

1515

N

[EA]

12

12

12

12

16

16

16

16

20

20

20

20

24

24

28

28

32

32

36

36

d2

[mm]

26

26

29

29

29

29

32

32

32

32

35

35

35

35

41

41

41

41

41

41

Di

(mm)

311.1

311.1

342.8

342.8

389.9

389.9

440.5

440.5

485.4

485.4

585.6

585.6

687.5

687.5

789.5

789.5

890.5

890.5

992.5

992.5

Do

(mm)

347.5

347.5

379.2

379.2

437.1

437.1

489.5

489.5

536.4

536.4

645.6

645.6

756.5

756.5

858.5

858.5

959.5

959.5

1061.5

1061.5

Bellow-

areas

(mm^2)

85167

85167

102354

102354

134289

134289

169823

169823

205004

205004

297637

297637

409415

409415

533267

533267

672006

672006

828382

828382

Weight

Approx

(kg)

88.7

103.4

106.7

121.8

144.5

163.0

167.1

184.1

190.9

209.9

268.4

297.5

439.2

483.3

579.7

627.5

726.1

780.4

913.6

974.9

Bellows

59




DN

40

40

50

50

65

65

80

80

100

100

125

125

150

150

TYPE

MGFS-0040-015-20

MGFS-0040-020-20

MGFS-0050-015-20

MGFS-0050-020-20

MGFS-0065-015-20

MGFS-0065-020-20

MGFS-0080-015-20

MGFS-0080-020-20

MGFS-0100-015-20

MGFS-0100-020-20

MGFS-0125-012-20

MGFS-0125-020-20

MGFS-0150-015-20

MGFS-0150-020-20

+/-ANG

(deg)

15

20

15

20

15

20

15

20

15

20

12

20

15

20


(mm)

95

110

100

160

105

145

120

170

125

185

125

210

160

245

ANG

[kgf.mm/deg]

148.57

82.55

417.75

160.71

534.38

242.85

868.36

394.69

1650.71

750.30

2825.30

1086.63

4707.65

2139.79

t

[mm]

21

21

22.5

22.5

25.5

25.5

29.0

29.0

32.0

32.0

35.0

35.0

37.0

37.0

PCD

[mm]

114.3

114.3

127

127

149.2

149.2

168.3

168.3

200

200

234.9

234.9

269.9

269.9

HOR

[mm]

150

150

165

165

185

185

200

200

235

235

270

270

300

300

VER

[mm]

215

215

230

230

260

260

315

315

360

360

395

395

425

425

N

[EA]

4

4

8

8

8

8

8

8

8

8

8

8

12

12

d2

[mm]

23

23

20

20

23

23

23

23

23

23

23

23

23

23

Di

(mm)

40.5

40.5

52.5

52..5

68.3

68.3

79.1

79.1

104.6

104.6

130.2

130.2

155.0

155.0

Do

(mm)

57.7

57.7

70.3

70.3

88.1

88.1

100.7

100.7

131.0

131.0

156.6

156.6

186.2

186.2

Bellow-

areas

(mm^2)

1893

1893

2961

2961

4803

4803

6348

6348

10899

10899

16151

16151

22859

22859

Weight

Approx

(kg)

3.9

4.0

4.8

5.4

7.8

8.2

14.9

15.8

22.1

23.7

27.0

29.3

32.6

35.4

Bellows

60



DN

200

200

250

250

300

300

350

350

400

400

500

500

600

600

TYPE

MGFS-0200-015-20

MGFS-0200-020-20

MGFS-0250-012-20

MGFS-0250-020-20

MGFS-0300-008-20

MGFS-0300-015-20

MGFS-0350-007-20

MGFS-0350-013-20

MGFS-0400-010-20

MGFS-0400-019-20

MGFS-0500-012-20

MGFS-0500-017-20

MGFS-0600-012-20

MGFS-0600-018-20

+/-ANG

(deg)

15

20

12

20

8

15

7

13

10

19

12

17

12

18


(mm)

270

275

285

275

295

245

310

255

365

325

440

345

485

420

ANG

[kgf.mm/deg]

8426.73

3830.30

14962.75

6801.22

30607.85

17004.38

39959.79

22199.89

45668.67

24775.71

81412.75

58151.93

130934.89

93524.89

t

[mm]

41.5

41.5

48.0

48.0

51.0

51.0

54.0

54.0

57.5

57.5

63.5

63.5

70.0

70.0

PCD

[mm]

330.2

330.2

387.3

387.3

450.8

450.8

514.3

514.3

571.5

571.5

685.8

685.8

812.8

812.8

HOR

[mm]

360

360

425

425

485

485

555

555

620

620

730

730

845

845

VER

[mm]

555

555

620

620

690

690

770

770

885

885

1005

1005

1120

1120

N

[EA]

12

12

16

16

16

16

20

20

20

20

24

24

24

24

d2

[mm]

26

26

29

29

32

32

32

32

35

35

35

35

42

42

Di

(mm)

206.2

206.2

260.3

260.3

311.2

311.2

343.0

343.0

393.9

393.9

486.5

486.5

586.6

586.6

Do

(mm)

242.2

242.2

296.3

296.3

349.2

349.2

381.0

381.0

443.9

443.9

541.5

541.5

651.6

651.6

Bellow-

areas

(mm^2)

39479

39479

60830

60830

85634

85634

102922

102922

137819

137819

207499

207499

301031

301031

Weight

Approx

(kg)

93.3

96.2

115.2

118.2

144.7

145.2

193.8

194.3

312.6

316.6

416.6

414.7

582.0

585.4

Bellows

61


Generally, the fix point is required to use the bellow type expansion joint forthe purpose of withstanding against thrust force but it become sometimesdifficult to install fix point in case of a relatively large diameter and highpressure.

The MEGAFLEXON various type of pressure balanced expansion joint, L, S, T-type, can be designed on the above condition on pipe-work and the installa-tion cost of fix point could be saved. The major advantage of pressure balanceddesign is its ability to absorb externally imposed axial movement withoutimposing pressure loading on the system. But, the force resulting from thebellows spring rate is not eliminated.

Since the force to move the bellow are generally of a low order of magnitude,these are usually not objectionable, except in case involving extremely lightequipment with close clearance moving parts which might be affected by smallforce.

The pressure balanced expansion joint is used to relieve loads on equipmentsuch as pumps, compressors and turbines.

The pressure balanced expansion joint will be negligible when compared tothe cost of additional equipment, piping and building space which would benecessary for safe functioning of the equipment without the expansion joint.

Service pressure :full vacuum-20kgf/cm2

1)L-style(Bent pipe balanced)

2)S-style(Straight pipe balanced)

3)T-style(Straight pipe balanced)

This type of expansion joint is specially designed to protect theunderground pipe-work by absorbing the unbalanced ground settlement andan undesired fluctuation from earthquake. Especially, the soil pressure isconsidered on designing the external cover, which has special structure to avoidsoil penetration.

Service pressure : up to 20kgf/cm2

E. PRESSURE BALANCED TYPE EXPANSION JOINT

F. BURIED TYPE METALLIC EXPANSION JOINT

62

Pressure Balanced Type Expansion Joint

Bent pipe balanced(L-Style)

Straight pipe balanced(S-Style)

Straight pipe balanced(T-Style)

63


Buried Type Metallic Expansion Joint Single Type Dual Type

OverallLenght(mm)

650 700700 750700 750800 850800 900800 900800 900800 900800 900

1000 1100 1000 11001000 11001100 12001100 12001100 12001200 1200

Angularmovement

(ΘΘ°°)9

1213 1611 1514 1712 1612 1912 1710 1510 1410 1510 159

137

127

126

116

10

No.Of Convo-lution

3 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 5

DN

80

100

125

150

200

250

300

350

400

450

500

600

700

800

900

1000

L=1500

160 210195 260165 250185 270175 245205 280190 255170 220165 200150 180

135

120

105

90

80

75

L=2000

165 250240 350205 300245 350235 325290 385250 370245 350235 330225 320205 300185 265160 240150 220135 200120 180

L=2500

225 335250 405270 400325 435275 405355 495335 455305 435295 410295 420270 395 240 360220 320205 300185 275175 260

L=3000

280 350315 425340 435350 490350 465410 555385 545350 525340 495355 500352 475290 435265 400250 380235 355215 330

L=4000

350 430440 570400 500440 610440 560520 685500 660455 625440 590475 605435 595390 560360 540350 530330 490295 460

No.Of Convo-lution

3 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 5

DN

80

100

125

150

200

250

300

350

400

450

500

600

700

800

900

1000

the Possible Settlement Amount(Y) for the overall Lenght L (mm)

Face to Face Length(L) Face to Face Length(L)

RECTANGULAR EXPANSION JOINT

① Metallic Rectangular expansion joints for flue gas line, 11182×3482×3000. The view of lifting for transportation

② Round corner type rectangular expansion joint, 9800×1200×500

③ Double Mitered type Metallic Rectangular Expansion joint with insulation Support 11182×3482×2800

③②

①

65


1.1 MEGAFLEXON provides metal rectangular expansion joints subjected toaxial, lateral, angular movements, or any combinstion of these as the same withthe metallic circular expansion joint.

To complete this expansion joint in designing, the bellows are to be designedin accordance with the bellows performance equations defined in clause C-8 inthe current EJMA edition, Expansion joint Manufacturer Association.

1.2 MEGAFLEXON can supply single mitered corner, double mitered corner,camera corner and round corner in case that especially specified

1.2.1 Single Mitered Corner Construction

① Fitted with high convolution profiles.② Maximum amount of movement possible

for or given convolution profile.③ Lowest cost.

1.2.2 Double Mitered Corner Construction① Fitted which high convolution profile.② Maximum amount of movement possi-

ble for a given convolution profile.③ Low cost.If a corner preference is not specified, MEGA

FLEXON would design the double miteredcorner configuration in corner construction(fig 2 Double Mitered Corner)

1.2.3 Camera corner① Low cost② All corner seam welding to be performed

on the outside of the corner in a easilyaccessable area.

③ Disadvantage : deep crevices at thecorner, a reduction in movement availa-ble for a given profile and convolutioncount because the convolutions are over-lapped at the corner.

fig 1) Single mitered corner

fig 2) Double mitered corner

fig 3) Camera corner

G. METALLIC RECTANGULAR EXPANSION JOINT

66

MEGAFLEXON does not recommand this shape of expansion joint but willprovide if specified. (fig 3. Camera Corner)

1.2.4 Round cornerMEGAFLEXON can supply the round

corner design as well because this design hasa advantage in the technical view point.

That is, this design results in the lowestcorner stress if sit up and welding of thecorner seams are carefully controlled.

MEGAFLEXON is producing 60mm highconvolution profile as standand unlessspecified.

1.3 MiscellaneousCoverInternal sleeveHingeSlotted hingesInternal packingInsulation support

1.3.1 CoverApplication : -To avoid accidental damage to the bellows while shipment, installation or operation. -To protect the bellows from weld splatter,or other metal work

1.3.2 internal sleeveApplication-Flow velocity is the above of 7~10m/secand fluid is abrasive.

AdvantageIn high temperature operation, or rapid

variation of temperature, the air barrier maybe formed on space between bellows and liner and the rapid increasement ofskin temp. on bellows can be avoided, which result in the reduction ofcircumferential stresses in the bellows. That cause buckling or rapid fatiguefailure of the bellows.

fig 4) Round corner

67


1.3.3 internal packingApplication-The protection against thermal shock andcracking occured in case that the rectan-gular expansion joint is subjected to therapid temperature range. Normally, thepacking reduce the skin temperature ofbellows while operation.-In the coal-fired boiler flue gas line, thepacking acts like fillter to avoid fly ashfrom accumulating in the bellows convo-lution. The fly ash filled can affect severe chemical attack and immobilization ofbellows motion.

1.3.4 Hinges and slotted hingesApplication -As the support for the weight of the ductingbetween two single expansion joints-As the controller suitable for axial and lateraloffset in universal type expansion joint.

1.3.5 insulation supportOn outer insulation, it is often specified for

the support of insulation material.

1.4 MaterialMEGAFLEXON use following material on bellows fabrication(ASTM)

A240 T304, A240 T304LA240 T316, A240 T316LA240 T321, B168 Alloy600A606(corten)

A36, or A387 Gr 12 would be applied on flange, internal sleeve and inter-mediate duct pipe if required.

1.5 Quality assurance

1.5.1 All welding shall comply with ASME section Ⅸ,latest edition.

1.5.2 All dimensional tolerance shall be in compliance with EJMA section D-2.

68

1.5.3 Quality assurance system is currently maintained according to ASMEcode section Ⅷ

1.5.4 If the leak-test specified on ASME B31.3 is not available due to dimension,the air jet leak examination shall be applied, which is specified on D-3 sectionin EJMA latest edition.

1.6 Design Standard

1.7 Shipment-The expansion joint shall be prepared for shipment in such a manner that thequality, cleanliness and finish shall be maintained during shipment.

-Shipping bar shall be equipped to maintain proper shipping length andalignment and shipping bars shall be painted yellow

-Each expansion joint shall be tagged with recommended installationinstruction

-MEGAFLEXON provide lifting lugs in case that expansion joint weighing more than 200kgf. If more than one lug is furnished, each lug shall be designed to carry the entire weight of the assembly.

Length as SuppliedBellows Type

Miter, Round

Corner Type

Camera

Corner Type

Max.working Pressure(kgf/cm2)

0.5

0.5

No. of Corrugation

1

2

3

2

3

5

Total Expansion Absorbed

(mm)

±20

±40

±60

±20

±30

±40

Spring rate

(kg/mm)

0.032×ℓ

0.016×ℓ

0.011×ℓ

0.011×ℓ

0.008×ℓ

0.006×ℓ

SL50

160

220

280

220

280

400

SL65

190

250

310

250

310

430

SL75

210

270

330

270

330

450

SL100

260

320

380

320

380

500

69


1)The thermal expansion of pipe

The below table shows the thermal expansion of pipe per 1M and pipematerial (Aluminum, copper, steel and iron) and thermal expansion coefficient (β).

When estimating the thermal growth, the flowing procedure shall be applied.

△L= β(T-t)L

△L =pipe expending amountL =pipe lengthβ=thermal expansion coefficientT =max. temperaturet =min, temperature

The example of calculation

nominal diameter:250Apipe material :SPPfluid:steamservice temperature :Tmax=160oC, Tmin=-10oCinstallation temperature:Ts=20oCthe pipe length:L=30m(the length between main fix points on straght line)pressure:5kgf/cm2

the thermal coefficient of pipe: =12.0×10-3mm/m/oC

△L=(Tmax-Tmin)×β×L=[160-(-10)]×12.0×10-3×30=61.2mm

H. REFERENCE DATA

70

Reference Data

Maximum temperature

Minimum temperature

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

120

140

160

180

200

220

40

11.1

11.2

11.2

11.3

11.4

11.4

11.6

11.6

11.9

11.9

11.9

12.1

12.1

12.1

12.112.2

12.3

12.4

12.4

12.6

30

11.1

11.1

11.0

11.2

11.3

11.4

11.5

11.6

11.8

11.8

11.8

12.0

12.1

12.1

12.1

12.1

12.2

12.3

12.4

12.5

20

11.0

11.0

11.0

11.1

11.2

11.2

11.5

11.6

11.7

11.7

11.7

11.9

12.0

12.0

12.0

12.1

12.2

12.3

12.3

12.5

10

10.0

11.0

11.0

11.0

11.1

11.2

11.4

11.4

11.6

11.6

11.7

11.8

11.9

11.9

11.9

12.0

12.1

12.2

12.3

12.4

0

10.9

10.9

11.0

11.0

11.1

11.2

11.3

11.4

11.5

11.5

11.6

11.7

11.8

11.8

11.911.9

12.0

12.2

12.2

12.3

-10

10.9

10.9

11.0

11.0

11.0

11.1

11.2

11.3

11.4

11.4

11.5

11.6

11.7

11.7

11.811.9

12.0

12.1

12.2

12.3

-20

10.8

10.9

11.0

11.0

11.0

11.0

11.1

11.2

11.3

11.4

11.4

11.6

11.6

11.6

11.711.8

11.9

12.0

12.1

12.2

-30

10.8

10.9

10.9

10.9

11.0

11.0

11.1

11.2

11.3

11.3

11.4

11.5

11.6

11.6

11.711.8

11.9

11.9

12.1

12.2

-40

10.8

10.8

10.9

10.9

10.9

11.0

11.1

11.1

11.2

11.3

11.3

11.5

11.5

11.5

11.611.7

11.8

11.9

12.0

12.1

The thermal expansion of pipe

The thermal expansion of pipe

Pipe Temperature (OC)

Aluminum pipe

Castiron pipe

Steel pipeCopper pipe

the

ther

mal

exp

ensi

on o

f pi

pe p

er1M

15

10

5

00 100 200 300 400 500

β=10-3mm/m/oC

71


Reference Data The Allowable Stress Table

Design-tion

STS 304

STS304L

STS316

STS316L

STS316J1

STS316J1L

STS317

STS317L

STS321

STS405

STS410

STS430

Th

e allow

able stress fo

r a temp

erature ( OC

/ kgf/mm

2)C

ompo-

sition m

inimum

reguired

18Cr,

8Ni

18Cr,

8Ni,

min.C

16Cr,

12Ni

2Mo

16Cr,

12Ni,

2Mo

min.C

18Cr,

12Ni,

2Mo, 2C

u

18Cr,

12Ni,

2Mo, 2C

u, m

in.C

18Cr,

12Ni,

3Mo

18Cr,

13Ni,

3Mo

min.C

18Cr,

10Ni, Ti

13Cr-Al

12Cr

16Cr

minim

umreguiredstress

(kgf/mm

2)

534953495349534953424546

-30

13.1

13.1

11.3

11.3

13.1

13.1

11.3

11.3

13.1

13.1

11.3

11.3

13.1

13.1

11.3

11.3

13.1

13.1---

-10

13.1

13.1

11.3

11.3

13.1

13.1

11.3

11.3

13.1

13.1

11.3

11.3

13.1

13.1

11.3

11.3

13.1

13.1

10.5

11.0

11.5

0

13.1

13.1

11.3

11.3

13.1

13.1

11.3

11.3

13.1

13.1

11.3

11.3

13.1

13.1

11.3

11.3

13.1

13.1

10.5

11.3

11.5

40

13.1

13.1

11.3

11.3

13.1

13.1

11.3

11.3

13.1

13.1

11.3

11.3

13.1

13.1

11.3

11.3

13.1

13.1

10.5

11.3

11.5

75

11.9

12.1

11.3

11.3

11.9

12.6

11.3

11.3

11.9

12.6

11.3

11.3

11.9

12.6

11.3

11.3

12.1

12.3

10.2

11.0

11.0

100

11.1

11.6

10.6

11.3

11.2

12.3

11.3

11.3

11.2

12.3

11.3

11.3

11.2

12.3

11.3

11.3

11.5

11.7

10.0

10.8

11.0

125

10.4

11.3

9.3

11.3

10.7

12.1

10.7

11.3

10.7

12.1

10.7

11.3

10.7

12.1

10.7

11.3

11.1

11.4

10.9

10.7

13.7

150

9.6

10.9

9.2

11.2

10.2

11.9

10.0

11.1

10.2

11.9

10.0

11.1

10.2

11.9

10.7

11.1

10.7

11.1

9.7

10.5

10.5

175

9.2

10.7

8.5

10.9

9.9

11.7

9.3

10.8

9.9

11.7

9.3

10.8

9.9

11.7

9.7

10.8

10.5

11.0

9.6

10.4

10.4

200

8.7

10.5

7.8

10.6

9.6

11.5

8.6

10.4

9.6

11.5

8.6

10.4

9.6

11.5

8.6

10.4

10.2

1.9

9.4

10.2

10.2

225

8.4

10.4

7.4

10.3

9.3

11.4

8.2

10.2

9.3

11.4

8.2

10.2

9.3

11.4

8.2

10.2

9.9

10.8

9.2

10.0

10.0

250

8.1

10.3

7.0

10.0

9.0

11.3

7.9

9.9

9.0

11.3

7.9

9.9

9.0

11.3

7.9

9.9

9.6

10.7

9.1

9.8

9.8

275

7.9

10.2

6.7

9.7

8.7

11.2

7.5

9.8

8.7

11.2

7.5

9.8

8.7

11.2

7.5

9.8

9.4

10.6

8.9

9.7

9.7

300

7.7

10.1

6.4

9.3

8.5

11.2

7.3

9.6

8.5

11.2

7.3

9.6

8.5

11.2

7.3

9.6

9.1

10.6

8.8

9.5

9.5

325

7.6

10.1

6.3

9.0

8.3

11.2

7.0

9.5

8.3

11.2

7.0

9.5

8.3

11.2

7.0

9.5

8.9

10.6

8.7

9.4

9.4

350

7.5

10.0

6.1

8.7

8.1

11.2

6.8

9.4

8.1

11.2

6.8

9.4

8.1

11.2

6.8

9.4

8.7

10.6

8.5

9.3

9.3

375

7.4

10.0

6.0

8.4

7.9

11.2

6.6

9.3

7.9

11.2

6.6

9.3

7.9

11.2

6.6

9.3

8.6

10.6

8.4

9.1

9.1

400

7.3

9.9

5.8

8.1

7.7

11.1

6.4

9.1

7.7

11.1

6.4

9.1

7.7

11.1

6.4

9.1

8.5

10.6

8.1

8.8

8.8

425

7.2

9.8

5.7

7.8

7.6

10.9

6.2

8.9

7.6

10.9

6.2

8.9

7.6

10.9

6.2

8.9

8.4

10.6

7.8

8.5

8.5

450

7.1

9.7- -7.5

10.8

6.0

8.7

7.5

10.8

6.0

8.7

7.5

10.8

6.0

8.7

8.2

10.6

7.4

8.0

8.0

475

7.0

9.6--

7.3

10.5--

7.3

10.5--

7.3

10.5--

8.0

10.5

6.9

7.5

7.5

500

6.9

9.5--

7.2

10.3--

7.2

10.3--

7.2

10.3--

7.8

10.4

6.2

6.6

6.6

525

6.7

9.1--

7.0

10.0--

7.0

10.0--

7.0

10.0--

7.7

10.1

4.2

5.3

5.4

550

6.5

8.4--

6.8

9.6--

6.8

9.6--

6.8

9.6--

7.6

9.3

2.8

3.8

4.0

575

6.1

7.2--

6.7

9.0--

6.7

9.0--

8.6

9.0--

7.1

7.8-2.7

2.9

600

5.6

5.8--

6.5

8.0--

6.5

8.0--

6.5

8.0--

5.9

5.9-

1.8

2.1

625

4.7

4.7--

6.9

6.4--

5.9

6.4

--

5.9

6.4

--

4.1

4.1-1.1

1.6

650

3.8

3.8--

4.8

4.8--

4.8

4.8--

4.8

4.8--

3.1

3.1-0.7

1.2

675

3.1

3.1--

3.8

3.8--

3.8

3.8--

3.8

3.8--

2.4

2.4---

700

2.5

2.5--

3.0

3.0--

3.0

3.0--

3.0

3.0--

1.7

1.7---

725

2.0

2.0--

2.1

2.1--

2.1

2.1--

2.1

2.1--

1.2

1.2---

750

1.6

1.6--

1.6

1.6--

1.6

1.6--

1.6

1.6--

0.9

0.9---

775

1.3

1.3--

1.2

1.2--

1.2

1.2--

1.2

1.2--

0.7

0.7---

800

1.0

1.0--

0.9

0.9--

0.9

0.9--

0.9

0.9--

0.6

0.6---

72

Reference Data

Corrosion TableCorrsivemedium

nitric acid

sulphuric acid

hydrochloric acid

phosphoric acid

oxalic acid

AceticAcid

latic acid

citric acid

chrom acid

fluorine

chorine gas

carbon tetrachloride

carbonic acidtartaric acid

oleic acid

Concentration

5%20%50%

5%5%50%50%

1%5%10%5%10%

5~10%20~100%

50%5%5%10%5%15%

5%10%

dry

humidy

pure5~10%

Temperature

20℃20℃

boiling

"20℃

boiling

20℃boiling

20℃boiling

20℃20℃20℃20℃

20℃~boiling

boiling

20℃20℃

boiling

20℃65℃

boiling

20~65℃boiling

20℃boiling

20℃20℃20℃20℃20℃20℃20℃20℃

STS304

AAAD

CEDEADE

++AACADAACABBAAACECDE*CAA*A

STS316

AAAD

BCCDADE

++AAAACAABAAAAAABEBCD*BAAA

STS410

AA-E

------E

++AADB-AC-CC-A---E---D-C-

STS430

AAAD

CE-EADE

++AADA-AB-BB-ABBDECDE*CAC*B

73


Reference Data

Corrosion TableCorrsivemedium

Ammonia(ℓ)

Ammonia gas

Calcium hydroxide

ethyl alcohol

methyl alcohol

carbonated water

sea watermilk

molasses

gasoline

juice

mayonnaise

glycerime

catchup

coffee

beer

Concentration

10~20%

50%

5%

all concentration

5~10%

1~5%

5~20%

saturated

5%

5~saturated

1%

5%

Temperature

20oC

50oC

boiling

"

20~65oC

20oC

20~65oC

20oC

20~65oC

boiling

20oC

20oC

20oC

20oC

20oC~boiling

20oC

65oC

20oC

65oC

20oC

20oC

boiling

STS304

A

-

A

C

A

A

A

A

A

*A

B

*A

A

++*B

++*D

A

A

*C

A

*A

*A

A

A

A

A

*A

A

*A

A

A

STS316

A

D

A

B

A

A

A

A

A

A

A

*A

A

*A

*C

A

A

B

A

A

*A

A

A

A

A

A

A

A

A

A

STS410

-

-

-

-

-

A

A

-

B

*B

-

-

-

C

D

-

-

-

A

A

-

B

-

A

A

-

A

*A

A

-

STS430

A

D

-

-

A

A

A

C

A

*B

-

*A

A

*B

*D

A

A

C

A

A

*C

A

A

A

A

-

A

A

*A

-

A : fully corrosion resistance, less than 0.0089mm/monthB : sufficient corrosion resistance, 0.0089~0.089mm/monthC : practically corrosion resistance, 0.089~0.25mm/monthD : limited in corrosion resistance,0.25~0.89mm/monthE : absolutely not corrosion resistance, more than 0.89mm/month+ : could be easily attacked by sulfric acid, if existed++: could be easily attacked byhydrochloric acid, if existed

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