velan torque seal valve

28
Zero Leakage Bi-directional Firesafe to API 607 Long Cycle Life Reliable Performance Positive Isolation for: Power Generation Petroleum Refining Oil & Gas Production Chemical, Petrochemical and Gas Processing Cryogenics Pulp & Paper Environmentally Friendly SIZES: 3–36” (80–900 mm) Triple Offset, Metal-Seated Butterfly Valves Catalogs

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VALVE INFORMATION -- VELAN

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Page 1: Velan TORQUE SEAL VALVE

Zero Leakage

Bi-directional

Firesafe to API 607

Long Cycle Life

Reliable Performance

Positive Isolation for:

Power Generation

Petroleum Refining

Oil & Gas Production

Chemical, Petrochemical

and Gas Processing

Cryogenics

Pulp & Paper

EnvironmentallyFriendly

SIZES: 3–36”(80–900 mm)

Triple Offset, Metal-Seated Butterfly Valves

Catalogs

Page 2: Velan TORQUE SEAL VALVE

Velan is one of the world’s leading manufacturers of industrial steelvalves, supplying forged (1/2- 24") and cast steel (2 - 60") gate, globeand check valves, ball valves 1/2 - 36" and knife gate valves (3 - 36")for standard and critical applications in oil and gas, chemical andpetrochemical plants, fossil and nuclear power, cogeneration, pulpand paper, and cryogenics.

Founded in 1950, Velan earned its reputation for quality andexcellence as a major supplier of valves for fossil and nuclearpower plants and the U.S. Navy. Velan Inc. pioneered many designinnovations such as bellows seal valves, live loading of stem seals,and the range extension from 1/2 - 2" to 24" for forged valves.

Today after more than three years of extensive design research,prototype and field testing, Velan introduces an advanced line oftriple offset Torqseal Metal-seated Butterfly valves in sizes 3-36",described in this catalogue.

The comprehensive Velan line of industrial valves is manufacturedin 12 specialized plants: 5 in Canada, 2 in Korea, and 1 each in theU.S.A., France, U.K., Portugal and Taiwan, with 1,091 employees inNorth America and 384 overseas.

COMPANY’S PROFILE

CONTENTSManufacturing Plants ............................................................1Zero leakage Butterfly Valves...............................................2Applications in Major Industries ..........................................3Valve Design Features .......................................................... 4Principle of Operation ............................................................5Valve Parts and Materials to ASTM Standards ........... 6–7Stem Seal Technology........................................................8–9Engineering Data /Actuated Valves ..............................10-13Dial Indicator & other options.............................................14Fire Testing .............................................................................15Qualification Testing.......................................................16–17Production Highlights ..........................................................18Customer Installations ........................................................19Metal-seated Butterfly Flanged Type Valves, 3–36” (80– 900 mm) ....................................................... 20–21Metal-seated Butterfly Wafer and Lug Type Valves, 3–36” (80– 900 mm) ....................................................... 22–23Cryogenic Butterfly Valve Technology ..............................24Cryogenic Valve Design Features .....................................25Side Entry Butterfly Valves, Butt Weld 6–36” (150– 900 mm)............................................................ 26Flanged Butterfly Valves, Long & Short Pattern 3–36” (80– 900 mm).............................................................. 27Certification, Approvals & References............................. 28How to Order .........................................................................29

John Leduc, Product Sales Manager – Butterfly ValvesVelan has Sales offices and distributors located worldwide.Visit the Velan website at www.velan.com for an updated contact list.

NOTE: The material in this catalog is for general information. For specific performance data and proper material selection, consult yourVelan representative. Although every attempt has been made to ensure that the information contained in this catalog is correct, Velan reserves the right to change designs, materials or specifications without notice.

Page 3: Velan TORQUE SEAL VALVE

Valves fire tested to API 607, Fourth Edition (see pg. 15).2

Product range in Carbon and Alloy Steel, 316 Stainless, Duplex, Monel,Hastelloy, Inconel, Alloy 20 and Titanium.

VELAN TRIPLE OFFSET - ZERO LEAKAGE BUTTERFLY VALVES

3–36” (80–900 mm) ASME Classes 150 & 300Face-to-faceto ISO 5752

3–36” (80–900 mm) ASME Classes 150 & 300Gate valveFace-to-faceto B16.10

Body conforms to API 600 wall thickness

FLANGEDLONG PATTERN TO B16.10

FLANGEDSHORT PATTERN TO ISO 5752

WAFER TYPETO API 609

LUG TYPETO API 609

3–36” (80–900 mm) ASME Classes 150 & 300Face-to-faceto API 609

3–36” (80–900 mm)ASME Classes 150 & 300Face-to-faceto API 609

Page 4: Velan TORQUE SEAL VALVE

APPLICATIONS IN MAJOR INDUSTRIES

NUCLEAR POWER PLANTS� Containment Isolation

� Saltwater Service

� Core Spray Systems

� Pump Isolation(Velan holds the ASME N-stamp from 1969)

PULP AND PAPER� Steam Isolation, Boiler Water� Green, Red and Black Liquors� Oxygen Lines� Lime and Slurries

PETROCHEMICAL PLANTS� Brine, CO2 Vapor, � Propylene Plants

Steam Service � Oxygen Service� Hydrogen Gas, � Flare Inlet and

Propane Gas Maniford Isolation� Ethylene Plants � PSA & Molecular Sieves� Ethylene Crackers � Coker Plants

CRYOGENICS� All Liquid Gases� Liquid and Natural Gas Service� Oil Field Recovery System� Gasification Plants and Storage� LNG Ship’s Service

PETROLEUM REFINING� Oil Storage Isolation� Steam Supply Valves� Desulphurization Systems and Tail Gas Treaters� Flare Gas Hydrogen, Sour Gas Isolation� Hot Cracking Gas� Catalytic Cracker Units

FOSSIL POWER PLANTS� Pump Isolation

� Condenser Cooling

� Pump and Steam Extraction Isolation

� Heat Exchanger, Condenser Cooling Isolation

3

Page 5: Velan TORQUE SEAL VALVE

4

Raised, conical seat prevents solids build-upfrom interfering with seal. Seat is hardfacedwith Stellite to meet severe service. Alternative space age alloys are also used.

�LAMINATED

RESILIENT DISC SEAL

to 1000°F (538°C)

One to four graphitelayers are carefullyassembled betweenstainless steel ringsusing Phenolic Resin.Flexible seal ringswithout glue areavailable for highertemperatures.

�"ZERO LEAKAGE" - SEAT TIGHTNESS

The disc seal, evenly compressed around itscircumference, produces a wedging effectwhich flexes the seal ring and reacts like aspring. The resilient seal assures "zero leakage"of liquids or gases to API 598 - resilient seatstandard. Resiliency in the seal allows discmovement during thermal cycles whileretaining tight shutoff as shown.

�NO CAVITY There is no cavity (contrary to Gate Valves) to allow build-up of solids.

�ONE-PIECE SHAFT Large diameter shaft forsafety is connected to the disc close to thebearings to absorb loads with taper pin and key to allow for differential expansion due totemperature.

�SHAFT BEARINGS The shaft is centered on two long bearings, chromed, nitrided, or asstellite (option) protected against the entranceof solids by O-rings (Bearing flush tapsavailable as an option).

�LOW EMISSION SHAFT SEALS 0–20 ppm

Shaft is burnished to 8 RMS, ID of packingchamber finish 32 RMS. Live-loading availablefor long maintenance free service. Easy accessfor packing adjustment. (See page 8 for detailsand alternative stem seals.)

This advanced design features three-way eccentricity and unique elliptical seat geometryensuring compressive sealing around entire seat and a “tight” bubble free valve.

VALVE DESIGN FEATURES

�SEAT Detail A

DOUBLE SHAFT

BLOWOUT PROTECTION

CONFORMS TO API 609

External Internal

Detail A

Load

Page 6: Velan TORQUE SEAL VALVE

5

THE TRIPLE OFFSET GEOMETRYOFFSET 1 The shaft is offset behind the seat axis to allow

complete sealing contact around the entire seatOFFSET 2 The shaft centerline is offset from the pipe and valve

which provides interference free opening and closingof the valve

OFFSET 3 The seat cone axis is offset from the shaft centerlineto eliminate friction during closing and opening andto achieve uniform compressive sealing aroundthe entire seat.

THE LAMINATED DISC SEALSeating forces are generated by the torque during closinguniformly around the entire circumference. The resilient sealflexes and energizes, assuming the shape of the seat. The compression forces equally distributed around theperimeter provide a tight bi-directional shut off. The resiliencyof the seal allows the valve body and disc to contract or expand, without the risk of jamming due to temperature fluctuations. It is self-adjusting.

The Velan Triple Offset Butterfly Valve provides a bi-directional bubble tight shut-off. This geometry ensures that the disc seal contacts the body seat only at the final shut-off position without rubbing or galling, providing a torque generated resilient seal withsufficient “wedging” to ensure a uniform seal contact.

PRINCIPLE OF OPERATION

FRICTION FREE SEALING FOR LONG CYCLE LIFE

Retainer ring

Disc

Gasket(2)

Hardfaced seat(1)

Body

Laminateddisc seal

Radial Loading

Velan provides an extra rigid retaining ring withbolting, resulting from ASME stress calculations. (1) Seat is hardfaced with Stellite as standard.(2) The gasket is spiral wound SS/Graphite for zero leakage

Page 7: Velan TORQUE SEAL VALVE

UP TO 750°F (400°C) UP TO 800°F (427°C) UP TO 1000°F (538°C)ITEM QTY DESCRIPTION

CARBON STEEL, NACE STAINLESS STEEL, NACE WC6, C5, OR C12

1 1 Valve body A 216 WCB A 351 Gr. CF8M WC6, C5 or C12Seat Stellite Stellite Stellite

2 1 Disc A 216 Gr. WCB nickel plated A 351 Gr. CF8M WC6, C5 or C12 nickel plated(1)

3 1 Bottom cover A 105 CS A 182 F 316 WC6, C5 or C124 1 Shaft A 479 Gr. 410 2xH1150 A 564 Type 630 2xH1150 B 637 Inconel 718 nitrided5 1 Laminated seal Duplex + Graphite Duplex + Graphite Duplex + Graphite6 1 Thrust bearing A 479 Type 316 nitrided A 479 Type 316 chrome plated UNS 21800 Nitronic 60 nitrided7 1 Retaining ring Duplex Duplex Duplex 11 1 Packing flange A 105 CS F309 A 105 CS12 1 Gland bushing Type 304 Type 304 Type 304

13A 3 Packing ring Graphite ribbon Graphite ribbon Graphite ribbon13B 2 Packing ring Graphite braided Graphite braided Graphite braided 13C 2 Bearing protector o-ring Graphite braided Graphite braided Graphite braided 14 Opt. Lantern ring Stainless steel Stainless steel Stainless steel15 2 Gland stud A 193 Gr. B7 A 193 Gr. B8M A 193 Gr. B16

16A 2 Gland heavy hex nut A 194 Gr. 2H A 194 Gr. 8M A 193 Gr. B16

16B 1 Taper pin hex nut SS 316 SS 316 SS 316(crimped)

17A 4 Actuator bracket hex. Alloy steel Alloy steel Alloy steelsocket cap screw

17B set Retainer hex. socket SS 316 SS 316 A 193 Gr. B6cap screw

19A 1 Bottom cover SS 347 + Graphite SS 347 + Graphite SS 347 + Graphitespiral wound gasket

19B 1 Disc spiral wound SS 347 + Graphite SS 347 + Graphite SS 347 + Graphitegasket26A, B 1 Key A 479 Type 410 2xH1150 A 564 Type 630 2xH1150 A 479 Type 410 Cond. 2

31 1 Locking plate A 479 Type 316 A 479 Type 316 UNS 21800 Nitronic 60 nitrided55 2 Stem bearing A 479 Type 316 nitrided A 479 Type 316 chrome plated UNS 21800 Nitronic 60 nitrided

56A 2 Thrust bearing hex. SS 316 SS 316 SS 316head cap screw

56B 4 Cover heavy hex. A 193 Gr. B8M A 193 Gr. B8M A 193 Gr. B16headcap screw61A 1 Taper pin A 479 Gr. 410 2xH1150 A 564 Type 630 2xH1150 B 637 Inconel 718 nitrided61B 1 Centering pin Stainless steel Stainless steel Stainless steel61C 1 Assembly set screw Alloy steel Stainless steel Alloy steel78 1 Actuator bracket Carbon steel Carbon steel Stainless steel141 1 Packing spacer Stainless steel Stainless steel Stainless steel

7

ASTM STANDARDS

All NACE materials to be supplied in condition respective MR01.75-99.Alternative materials for body, disc and other parts are available to meet specific conditions.

6

VALVE PARTS AND MATERIALS TO

Bearing Seal

Internal Blowout Protection

7

61B

5

19B

56A

55

4

26B

13C

55

141

13B

13A

16A

15

17A

11

2

1

78

12

26A

3

56B

6

31

19A

61A

16B

61C

17B

Detail A

Detail B

Detail C

Detail D

See page 4for external blowout

protection detail.

See page 8–9for live-loading andlantern ring option.

Page 8: Velan TORQUE SEAL VALVE

9

1) Fully-guided stemStem bearings in body and gland followerprevent wobbling and packing leakage due toside thrust on stem.

2) Precompressed packing rings to 4000 psi.

3) Two O-Rings in gland follower provideadditional stem seal protection to assuretightness of less than 1 ppm.

4) Live-loadingProvides constant packing compression and isessential for this packing arrangement.

5) Two-piece flanged gland.

6) Superior finish of packing chamber (32 RMS) and stem (8 RMS) to assure long life.

Double packing with leak-off monitoring purge port.Two sets of packing rings, precompressed to 4000psi (graphite). A lantern ring and leak-off connectionallows removal of leakage, if any, from bottompacking set.

ASSURES LOWEST POSSIBLE ENVIRONMENTAL EMISSIONS

The new European specification, called TA-LUFT which is controlled by a section of the German TUV agency(Technischer Überwachungs-Verein), demands for critical valves a maximum leakage of less than 1 ppm(0.0014 ppm). Certification issued after extensive pressure and cycling tests with H.P. helium, witnessed byTA-Luft inspectors, assures the design and performance of a given stem seal to be equivalent to a bellowsseal design. Velan has qualified two different stem seal designs to the TA-LUFT regulations.

3. THE TA-LUFT* SEALWITH LESS THAN 1 PPM (0.0014 PPM)

* Technical instructions to maintain cleanliness of air.

4. LANTERN RING OPTIONDOUBLE PACKED WITHLEAK-OFF MONITORINGPURGE PORT

OPTIONAL LIVE-LOADING

provides predictable andconstant packingcompression for morethan 5000 cycles beforeadjustment or re-packing.

8

1) Short and narrow packing chamber Maximum 5 rings, 1/4" wide.

2) Large compression load requiredGraphite rings precompressed to 4000 psi for effectiveness of all rings. Gland torque mustbe maintained after installation and in service tolevels shown in manuals.

3) Superior finish (32 RMS) of packing chamber andstem (8 RMS) to assure long cycle life.

4) Stem bearing to assure concentric stem rotation,allowing stem packing to provide maximumsealing effectiveness.

5) Two-piece gland with spherical mating surfacesto assure an even packing load over 360%.

1. STANDARD LOW EMISSION STEM SEALWITH 0-20 PPM

1) The Garlock EVSP 9000 High PerformancePacking is installed and then compressed usinggland bolting to approximately 80% of its "freelength". The inherent sealing ability due to itscup and cone technology and excellent quality of materials has been proven in standard andvery difficult valve applications, all backed up by an intensive research program carried out by BP-Amoco, calling it the EnvironmentallyFriendly Valve Technology.

2) 10% of valves are tested for compliance or zerohelium bubbles with helium leak detectors, at the highest, cold operating pressure for agiven pressure class (150 & 300).

2. EFV* STEM SEAL WITH “0” HELIUM BUBBLES

* Environmentally Friendly Valve

As a result of extensive tests conducted by Velan between 1966 and 1972, a new technology emerged at thetime for high performance, leakproof, long life, and low maintenance stem seals for nuclear power, nowavailable for all industries and applications. Velan is continuing its efforts in updating the low emissiontechnology which, in the case of butterfly valves, concerns the stem seal alone (no body-bonnet joint) tonewly emerging standards.

NEW STEM SEAL TECHNOLOGYPIONEERED BY VELAN

Braided GraphiteFEP TYP.

Graphite low density

Graphitehigh density

Stem bearing

provides predictable andconstant packingcompression for morethan 5000 cycles beforeadjustment or re-packing.

OPTIONAL LIVE-LOADING

Page 9: Velan TORQUE SEAL VALVE

10

COMPUTER FLOW SIMULATIONFLOW IN FULLY OPEN VALVE

VELOCITY FIELDA. Acceleration over disc

B. Deceleration of flowat stagnation point

C. Vortex behind the seat

D. Wake with vortices

VELOCITY VECTOR FIELDA. Vortex behind

the disc

B. Vortex behind the seat

RELATIVE PRESSURE FIELDA. High pressure at

stagnation point

B. Low pressure over the disc (accelerated flow)

FLOW AROUND

THE DISCA. Vortex behind

the seat

A.

A.

A.

C.

C.

B.

B.

A.

B.

D.

VELOCITY(m/s)

PRESSURE

Page 10: Velan TORQUE SEAL VALVE

20° 40° 60° 80°

100

0

20

40

80%

of

Max

imum

Cv

60

0Disc Opening Angle

°

11

Q = CV √ ∆ pGL

WHERE:Q = Flow in gpm

(U.S. gallons per minute).

∆ p = Pressure drop throughthe valve (psi)

GL = Specific gravity(for water at 60°F = 1)

FLOW DATA

Cv AT 90°– FULLY OPEN VALVE

Size in 3 4 6 8 10 12 14 16 18 20 24 30 36mm 80 100 150 200 250 300 350 400 450 500 600 750 900

Class 150 150 280 760 1360 2220 3600 5200 7200 9600 12550 18900 31400 44900

Class 300 150 280 760 1260 2030 3050 4660 6450 8640 11420 17200 29600 44000

Cv FLOW COEFFICIENT

PRESSURE TEMPERATURE RATINGS

Cv for partiallyopen valve

Cv for open at 80° = 99%at 60° = 70%at 40° = 30%at 20° = 10%

PRESSURE/TEMPERATURE RATINGS (ASME B16.34)

CLASS 150 CLASS 300

TEMP. °F Carbon Steel Stainless Steel Carbon Steel Stainless Steel TEMP. °CA 216 Gr. WCB A 351 Gr. CF8M A 216 Gr. WCB A 351 Gr. CF8MPSIG BAR PSIG BAR PSIG BAR PSIG BAR

-20 to 100 285 19.65 275 18.96 740 51.02 720 49.64 -29 to 38200 260 17.93 235 16.20 675 46.54 620 42.75 93300 230 15.86 215 14.82 655 45.16 560 38.61 149400 200 13.79 195 13.44 635 43.78 515 35.51 204500 170 11.72 170 11.72 600 41.37 480 33.09 260600 140 9.65 140 9.65 550 37.92 450 31.03 316 650 125 8.62 125 8.62 535 36.89 445 30.68 343700 110 7.58 110 7.58 535 36.89 430 29.65 371750 95 6.55 95 6.55 505 34.82 425 29.30 399800 80 5.52 80 5.52 410 26.27 415 28.61 427

Page 11: Velan TORQUE SEAL VALVE

12

The top two graphs show closing torques arranged by valve size. The same curves are valid for bothpressure classes. The bottom two diagrams indicate torques related to 150, 290 and 750 psi (1,2 and 5 MPa)differential pressure.

CLOSING TORQUES VS. DIFFERENTIAL PRESSURE FOR “0” LEAKAGE

0

2000

4000

6000

8000

10000

0 200 400 600 800

Differential Pressure [psi]

12000

14000

16000

18000

0

2000

4000

6000

8000

10000

12000

14”DN350

14000

16000

18”DN450

20”DN500

24”DN600

30”DN750

36”DN900

16”DN400

0

200

400

600

800

1000

1200

3”DN80

1400

1600

1800

2000

4”DN100

6”DN150

8”DN200

10”DN250

12”DN300

To

rqu

e [

ft-l

b]

18000

To

rqu

e [

ft-l

b]

To

rqu

e [

ft-l

b]

150 psi 290 psi 740 psi

Differential Pressure

0

200

400

600

800

1000

1200

0 200 400 600 800

Differential Pressure [psi]

To

rqu

e [

ft-l

b]

1400

1600

1800

2000

3–12” (DN80–DN300) 14–36” (DN350-DN900)

Valve SizeValve Size

2000

1500

1000

500

0

25000

20000

15000

10000

5000

0

500

1000

1500

2000

2500

0

2500

To

rqu

e [

Nm

]

10000

25000

20000

15000

5000

0

Differential Pressure [MPa]Differential Pressure [MPa]1 2 3 4 5 1 2 3 4 50 0

1 MPa 2 MPa 5 MPa

12”DN300

10”DN250

8”DN200

6”DN150

4”, DN100

3”, DN80

36”DN900

30”DN750

24”DN600

20”DN500

18”DN450

16”DN400

14”DN350

3–12” (DN80–DN300) 14–36” (DN350-DN900)

To

rqu

e [

Nm

]

To

rqu

e [

Nm

]To

rqu

e [

Nm

]

Page 12: Velan TORQUE SEAL VALVE

Velan worm gear and scotch yoke actuators providereliable and dependable manual operation forbutterfly valves. Both series are designed to operatein the range of 90° ±5° and are equiped withangular dial indicator (see pg. 14). VW worm gearactuators are featuring a gear segment and a rigid,reversible shaft with integral worm. For largervalves, heavy duty VS series scotch yoke type

actuators provide nonlinear torque characteristicwith the highest possible mechanical advantage forseating and unseating the valve. Both series complywith the ISO 5211 standard and are suitable for hightemperature service.

13

GEAR ACTUATORS

AIR AND ELECTRIC ACTUATORSVelan supplies high quality actuators forpneumatically-operated butterfly valves. All actuators are totally enclosed. Externaladjustment stops provide accurate adjustment forclosing and opening positions. All moving parts arepermanently lubricated. Actuators can be installedin the field although it is preferable that they beinstalled and tested in the factory.

PNEUMATIC RACK & PINION AND SCOTCH YOKE ACTUATORS

� Quarter turn, double acting and spring return typewith a totally enclosed design and no externalmoving linkages.

� 95.5° rotation, including external travel stops witha minimum of 10° adjustment.

� Rated for continuous operation using a dry orlubricated noncorrosive gas and suitable formounting in any position.

� Ambient temperature range of -40° to +180°F (-40° to +82°C) or, for high temperature service 0°to +350°F (-18° to +177°C).

Also available with electric actuators.

VW-SERIES VS-SERIES

Top view

Top view

Side view

Side view

Page 13: Velan TORQUE SEAL VALVE

Bushing

Grease fitting Annular groove

Nose guard reduces erosion

Stem

Valve body

14

The angular dial indicator with 5-degreemovements from 0° to 90° (fully closedto fully open) is attached to the top ofthe gear actuator. When the actuator is removed, the proper valve position is indicated on the shaft and body incompliance with API.

STANDARD ANGULAR DIAL INDICATOR

OPTIONAL BEARING LUBRICATION

OPTIONAL DISC EDGE PROTECTOR

Grease from a standard grease fittingis distributed to the shaft through agroove in the outside diameter of thebearing and from radial holes in thebushing’s well.

A V-shaped bar bent to a half-circle is attached to the body, close to thefront of the disc in full open position. The V-shaped nose guard helps tostreamline the flow and protects the upstream circumference of thelaminated disc-seal.

NOTE: Disc edge protector only available on the ASME B16.10design valves.

Flow streamlines

Disc

Laminatedseal

Shieldedarea

Page 14: Velan TORQUE SEAL VALVE

FIRST SECOND TYPE OPERATIONAL OPERATIONAL ALLOWABLE

OF TEST TEST TEST LEAKAGEPREFERRED NONPREFERRED ml/min

Seat leakage 0 ml/min 0 ml/min 160 ml/min

External leakage 0 ml/min 0 ml/min 200 ml/min

15

FIRE TESTED TO API 607, FOURTH EDITION1. The valve was tested first to API 598 with

0-seat leakage in preferred and nonpreferreddirection and 0-external leakage.

2. Valve during burn period is exposed to 1400-1800°F(760°-980°C) flames for the duration of 30 minutes.Performed twice, once in each direction.

8” Class 150 valve before the fire test.

3. Rapid water quenching lowersthe valve temperature to below212°F (100°C). Performed twice, once in each direction.

TEST REPORTS

RESULTS AFTER 2 FIRE TESTS

Valve after two fire tests, maintains 0-seat and stem seal leakage

Page 15: Velan TORQUE SEAL VALVE

16

RELIABILITY THROUGH FUNCTIONAL QUALIFICATION TESTS

Reliability of valve operation affects service life andmaintenance. To predict reliability, a sound valvedesign, backed up by a stress analysis must besubjected to functional cycle testing under criticaloperating conditions.

To develop the Velan Torqseal Triple Offset Metal-seated Butterfly valves, it required an unusual effort

and extended period of time as many competitivevalves in the same category, tested in our R&D,showed repeated leaks of seats and laminated discgaskets. Some highlights of the tests performed in ourR&D laboratory are shown here. Detailed reports areavailable on request.

TYPICAL TEST PROCEDURE FOR CLASS 300 ALLOY STEEL VALVE

8” Class 150 valve - ambient cycling The torques are recorded with atorque sensor.

NO. TYPE TEST FLUID PRESSURE psi TEMPERATURE DURATION VALVE SIDE1. Shell Water 1100 Ambient 5 minutes Valve open

2. Seat Air or Nitrogen 60–100 Ambient 2 minutes Both sideslow pressure

3. Seat Nitrogen 325 Ambient 2 minutes Preferredhigh pressure

4. Seat Water 800 Ambient 2 minutes Preferredhigh pressure

5. Seat Non high pressure Nitrogen 195 Ambient 2 minutes preferred

6. Seat Nonhigh pressure Water 480 Ambient 2 minutes preferred

A. HYDROSTATIC AND AIR TEST

B. COLD CYCLING TEST

1000 Cycles 820 psi water to test preferred seat side490 psi water to test nonpreferred seat side

C. HOT CYCLING TEST

1000 Cycles 150–200 psi superheated steam at 650–900°F

ACCEPTABLE RESULTS

0 bubble performance after andduring the tests, measuring andrecording the running, closingand breaking torque in ft•lbs.

Page 16: Velan TORQUE SEAL VALVE

17

RELIABILITY THROUGH FUNCTIONAL QUALIFICATION TESTS

TYPICAL TEST RESULTS14” CLASS 300 C12 BODY

8” Class 300 valve hot cycled at 150 psi steamsuperheated to 800°F.

A. HYDROSTATIC TESTS

Valve passed testing with zero leakage.

B. AMBIENT CYCLING TESTS

Valve passed:5000 Cycles with preferred flow direction, 3000 Cycles with nonpreferred flow direction and zero leakage at seats and gasket

Also tested 8” Class 300 to 30,000 cycles

with no jamming.

C. HOT CYCLING TESTS

The valve under flow of steam at 150–200 psisuperheated to 800–900°F passed 7250 cycleswithout seizing or jamming. Steam test on 14” Class 150 valve.

Page 17: Velan TORQUE SEAL VALVE

18

PRODUCTION HIGHLIGHTS

CNC plasma arc Stellite hardfacing of integral body seat.

CNC automatic machining of elliptical seat geometry.

Assembly of laminated seal ring. Bolting is handtight. Valve is closed twice so that the seal ring can self-center. Disc bolting is then tightened inclosed position.

CNC automatic machining of a 24” flanged body.

Page 18: Velan TORQUE SEAL VALVE

19

CUSTOMER INSTALLATIONS

Four 14” Class 300 C12 Butterfly valves.

Four 14" Class 300, C12, pneumaticallyoperated, Velan Torqseal Valves wereinstalled in a Delayed Coker. The valves were installed in HydrocarbonVapor lines on return to Fractionator and they operate at approximately 850°F @ 50 psi. Steam purges wereinstalled to keep the coke fines andpartially cracked, polymeric, residualhydrocarbons out of the valve seat area.

Page 19: Velan TORQUE SEAL VALVE

20

METAL-SEATED BUTTERFLY VALVES

3–36” (80–900 mm) ASME CLASSES 150, 300FLANGED TYPE, FLANGE DIMENSIONS TO B16.5

SIZE WORM GEAR E Weight lb

in ACTUATORA B C D Long Short F G H kg

pattern pattern Long Shortmm pattern pattern

3 VW4 11.74 4.94 8.36 9.95 8.00 4.50 2.88 6.00 9.00 72 66DN80 298 125 212 253 203 114 73 152 229 33 30

4 VW4 12.59 5.78 9.21 10.80 9.00 5.00 2.88 6.00 9.00 89 84DN100 320 147 234 274 229 127 73 152 229 41 38

6 VW4 14.37 6.53 10.99 12.58 10.50 5.50 2.88 12.00 9.00 124 110DN150 365 166 279 320 267 140 73 305 229 56 50

8 VW18 16.86 8.48 12.86 14.75 11.50 6.00 4.25 12.00 10.00 209 190DN200 428 215 327 375 292 152 108 305 254 94 86

10 VW18 17.75 9.41 13.75 15.64 13.00 6.50 4.25 12.00 10.00 274 239DN250 451 239 349 397 330 165 108 305 254 124 108

12 VW32 20.19 11.16 15.44 17.61 14.00 7.00 5.25 24.00 12.00 426 376DN300 513 283 392 447 356 178 133 610 305 193 170

14 VW32 21.22 11.91 16.47 18.64 15.00 7.50 5.25 24.00 12.00 521 461DN350 539 303 418 473 381 191 133 610 305 235 209

16 VW32 24.47 13.32 19.72 21.89 16.00 8.50 5.25 24.00 12.00 646 576DN400 622 338 501 555 406 216 133 610 305 292 261

18 VW65 26.66 15.01 21.41 23.86 17.00 8.75 7.63 24.00 14.00 880 780DN450 677 381 544 606 432 225 194 610 356 399 354

20 VW65 27.90 16.11 22.65 25.10 18.00 9.00 7.63 24.00 14.00 1,060 930DN500 709 409 575 638 457 229 194 610 356 480 422

24 VW120 31.90 19.49 26.65 29.10 20.00 10.50 7.63 18.00 14.00 1,685 1,510DN600 810 495 677 739 508 267 194 457 356 764 685

30 VS250 46.01 23.24 34.01 40.01 24.00 12.50 6.50 24.00 27.00 3,160 2,743DN750 1169 590 864 1016 610 318 165 610 686 1433 1245

36 VS450 52.51 27.54 38.51 45.51 28.00 13.00 9.00 18.00 31.00 5,073 3,944 DN900 1334 700 978 1159 711 330 229 457 787 2301 1789

DIMENSIONS AND WEIGHTS / Flanged Valves – ASME Class 150

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21

SIZE WORM GEAR E Weight lb

in ACTUATORA B C D Long Short F G H kg

pattern pattern Long Shortmm pattern pattern

3 VW4 11.74 4.94 8.36 9.95 11.12 4.50 2.88 6.00 9.00 79 69DN80 298 125 212 253 202 114 73 152 229 36 31

4 VW4 12.59 5.78 9.21 10.80 12.00 5.00 2.88 12.00 9.00 114 99DN100 320 147 234 274 305 127 73 305 229 51 45

6 VW18 15.93 7.54 11.93 13.82 15.88 5.50 4.25 12.00 10.00 224 184DN150 405 192 303 351 403 140 108 305 254 101 83

8 VW18 17.56 9.29 13.56 15.45 16.50 6.00 4.25 12.00 10.00 313 252DN200 446 236 344 392 419 152 108 305 254 141 114

10 VW32 19.52 10.29 14.77 16.94 18.00 6.50 5.25 24.00 12.00 466 376DN250 496 261 375 480 457 165 133 610 305 211 170

12 VW32 22.84 11.69 18.09 20.26 19.75 7.00 5.25 24.00 12.00 606 476DN300 580 297 459 515 502 178 133 610 305 274 215

14 VW65 24.66 13.01 19.41 21.86 30.00 7.50 7.63 24.00 14.00 950 680DN350 626 330 493 555 762 191 194 610 356 431 308

16 VW65 26.03 14.23 20.78 23.23 33.00 8.50 7.63 24.00 14.00 1,225 875DN400 661 361 528 590 838 216 194 610 356 555 397

18 VW120 27.84 16.04 22.59 25.04 36.00 8.75 7.63 18.00 14.00 1,560 1,105DN450 707 407 574 636 914 225 194 457 356 708 502

20 VW120 29.76 17.36 24.51 26.96 39.00 9.00 7.63 18.00 14.00 1,955 1,345DN500 756 441 623 685 991 229 194 457 356 887 610

24 VS250 42.76 20.11 30.76 36.76 45.00 10.50 6.50 24.00 27.00 3,531 2,429DN600 1086 511 781 934 1143 267 165 610 686 1561 1102

DIMENSIONS AND WEIGHTS / Flanged Valves – ASME Class 300

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Page 21: Velan TORQUE SEAL VALVE

Weightlbkg

Wafer Lug

45 5620 2558 7226 3367 8430 38115 14452 65147 18466 83229 286103 129285 356129 161373 466169 211476 595216 270680 850308 385

1,056 1,320479 599

2,141 2,676970 1213

3,516 4,3951594 1993

22

METAL-SEATED BUTTERFLY VALVES

3–36” (80–900 mm) ASME CLASSES 150, 300WAFER AND LUG TYPE

SIZEGEAR A B C D E F G H J K L M N O P Rin

mm

3 VW4 11.74 4.94 8.36 9.95 1.88 2.88 6.00 9.00 - 4 - 6.00 4 - 5/8-11UNC 5.00DN80 298 125 212 253 48 73 152 229 152 152

4 VW4 12.59 5.78 9.21 10.80 2.12 2.88 6.00 9.00 - 8 - 7.50 4 Ø .75 5/8-11UNC 6.19DN100 320 147 234 274 54 93 152 229 191 157

6 VW4 14.37 6.53 10.99 12.58 2.25 2.88 12.00 9.00 - 8 - 9.50 4 Ø .88 3/4-10UNC 8.50DN150 365 166 279 320 57 73 305 229 241 216

8 VW18 16.86 8.48 12.86 14.75 2.50 4.25 12.00 10.00 - 8 - 11.75 4 Ø .88 3/4-10UNC 10.63DN200 428 215 327 375 64 108 305 254 298 270

10 VW18 17.75 9.41 13.75 15.64 2.81 4.25 12.00 10.00 - 12 - 14.25 4 Ø 1.00 7/8-9UNC 12.75DN250 451 239 349 397 71 108 305 254 362 324

12 VW32 20.19 11.16 15.44 17.61 3.19 5.25 24.00 12.00 - 12 - 17.00 4 Ø 1.00 7/8-9UNC 15.00DN300 513 283 392 447 81 133 610 305 432 381

14 VW32 21.22 11.91 16.47 18.64 3.62 5.25 24.00 12.00 - 12 - 18.75 4 Ø 1.12 1-8 UNC 16.25DN350 539 303 418 473 92 133 610 305 476 413

16 VW32 24.47 13.32 19.72 21.89 4.00 5.25 24.00 12.00 - 16 - 21.25 4 Ø 1.12 1-8 UNC 18.50DN400 622 338 501 555 102 133 610 305 540 470

18 VW65 26.66 15.01 21.41 23.86 4.50 7.63 24.00 14.00 0.75 16 4 22.75 4 1 1/8-8UN 1 1/8-8UN 21.00DN450 677 381 544 606 114 194 610 356 19 578 533

20 VW65 27.90 16.11 22.65 25.10 5.00 7.63 24.00 14.00 0.75 20 4 25.00 4 1 1/8-8UN 1 1/8-8UN 23.00DN500 709 409 575 638 127 194 610 356 19 635 584

24 VW120 31.90 19.49 26.65 29.10 6.06 7.63 18.00 14.00 0.88 20 4 29.50 4 1 1/4-8UN 1 1/4-8UN 27.25DN600 810 495 677 739 154 194 457 356 22 749 692

30 VS250 46.01 23.24 34.01 40.01 7.50 6.50 24.00 27.00 0.88 28 4 36.00 4 1 1/4-8UN 1 1/4-8UN 33.75DN750 1169 590 864 1016 190 165 610 686 22 914 857

36 VS450 52.51 27.54 38.51 45.51 8.00 9.00 18.00 31.00 1.00 32 4 42.75 4 1 1/2-8UN 1 1/2-8UN 40.25DN900 1334 700 978 1159 203 229 457 787 25 1086 1022

DIMENSIONS AND WEIGHTS / Wafer and Lug Valves – ASME Class 150

WAFER TYPE

NxO holes (threaded or clearance) J depth of thread on M bolt circle P bolt size on each side

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Page 22: Velan TORQUE SEAL VALVE

D

G

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B

A

R

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LUG TYPE

KxP threaded holeson M bolt circle

23

SIZEGEAR A B C D E F G H J K L M N O P Rin

mm

3 VW4 11.74 4.94 8.36 9.95 1.88 2.88 6.00 9.00 - 8 - 6.62 4 3/4-10UNC 3/4-10UNC 5.00DN80 298 125 212 253 48 73 152 229 168 152

4 VW4 12.59 5.78 9.21 10.80 2.12 2.88 12.00 9.00 - 8 - 7.88 4 3/4-10UNC 3/4-10UNC 6.19DN100 320 147 234 274 54 73 305 229 200 157

6 VW18 15.93 7.54 11.93 13.82 2.31 4.25 12.00 10.00 - 12 - 10.62 4 3/4-10UNC 3/4-10UNC 8.50DN150 405 192 303 351 59 108 305 254 270 216

8 VW18 17.56 9.29 13.56 15.45 2.88 4.25 12.00 10.00 - 12 - 13.00 4 7/8-9UNC 7/8-9UNC 10.63DN200 446 236 344 392 73 108 305 254 330 270

10 VW32 19.52 10.29 14.77 16.94 3.25 5.25 24.00 12.00 0.67 16 4 15.25 4 1-8 UNC 1-8 UNC 12.75DN250 496 261 375 480 82 133 610 305 17 387 324

12 VW32 22.84 11.69 18.09 20.26 3.62 5.25 24.00 12.00 0.75 16 4 17.75 4 1 1/8-8UN 1 1/8-8UN 15.00DN300 580 297 459 515 92 133 610 305 19 451 381

14 VW65 24.66 13.01 19.41 21.86 4.62 7.63 24.00 14.00 0.75 20 4 20.25 4 1 1/8-8UN 1 1/8-8UN 16.25DN350 626 330 493 555 117 194 610 356 19 514 413

16 VW65 26.03 14.23 20.78 23.23 5.25 7.63 24.00 14.00 0.84 20 4 22.50 4 1 1/4-8UN 1 1/4-8UN 18.50DN400 661 361 528 590 133 194 610 356 21 572 470

18 VW120 27.84 16.04 22.59 25.04 5.88 7.63 18.00 14.00 0.84 24 4 24.75 4 1 1/4-8UN 1 1/4-8UN 21.00DN450 707 407 574 636 150 194 457 356 21 629 533

20 VW120 29.76 17.36 24.51 26.96 6.25 7.63 18.00 14.00 0.84 24 4 27.00 4 1 1/4-8UN 1 1/4-8UN 23.00DN500 756 441 623 685 159 194 457 356 21 686 584

24 VS250 42.76 20.11 30.76 36.76 7.12 6.50 24.00 27.00 1.00 24 4 32.00 4 1 1/2-8UN 1 1/2-8UN 27.25DN600 1086 511 781 934 181 165 610 686 25 813 692

DIMENSIONS AND WEIGHTS / Wafer and Lug Valves – ASME Class 300Weight

lbkg

Wafer Lug

45 5620 2558 7226 33106 13247 59146 18265 82233 291105 131301 376136 170472 590214 268620 725281 351808 1010366 458980 1,225445 556

1,894 2,368858 1073

LxJ depth of thread

on eachside

Page 23: Velan TORQUE SEAL VALVE

24

CRYOGENIC BUTTERFLY VALVE TECHNOLOGY

METALLICFLEXIBLE SEAT A double flexible metallicO-Ring seat provides a (1) static and (2) dynamicseal and assurescompliance to fire-safespecifications. Each O-Ring has a doubleenvelope, with the innerring in stainless steel, theexternal in copper alloy and an Inconel spring. The (3) flexible retaining ringprovides a complementary seatingpressure on the disc.

(1) External o-ring

(2) Internal o-ring

Inconel spring

(3) Retaining ring

STEM SEALINGis achieved by a systemof high efficiency O-rings in PTFE and a graphite packing for fire-safe operations.

IN-LINE

MAINTENANCEThe side entry design allowseasy and quick in-linemaintenance through the sidecover with free access to theseat and disc for inspection or maintenance withoutdisassembly of actuators. No special tools are required.

FIRE SAFEIn compliance with• API 607 • API 6FA • BS 6755 - Part II

Page 24: Velan TORQUE SEAL VALVE

� OFF-CENTEREDDISC ensuresprogressive and low friction seat-disc closing.

� STAINLESS STEEL SHAFTBEARINGScoated with nickel-reinforcedPTFE for perfect stem guiding and smooth closing.

� UNIQUE SEALING SYSTEMCombined with the eccentricdisc rotation, the patentedflexible metallic seatprovides an exceptional tightshutt-off even with hightemperature fluctuations.

� HIGH QUALITY CASTINGSwith X-ray and PT examination from approved foundries

� STEM SEAL O-RINGS • Viton O-rings• Expanded graphite ring for ”fire safe”.

� NO CAVITY There is no cavity (similar to Gate Valves) to allow build-up of solids.

� EXTENSION BONNETwith a sufficient gas column to keep the stem packing away from the cold fluid.

� IN-LINE SERVICING Allows quick and easy in-line seat removal and replacement within minutes.

� ACTUATORSPneumatic, hydraulic, electric or manual gear temperature.

25

VALVE DESIGN FEATURES

Left:Testing of 12” Side Entry flanged valve in liquid nitrogen.

Right:Valve after testing.

Page 25: Velan TORQUE SEAL VALVE

VALVE SIZE in/mmNOMINAL

6 8 10 12 14 16 18 20 24 28 30 32 36DIAMETER150 200 250 300 350 400 450 500 600 700 750 800 900

6.63 8.63 10.75 12.75 14.00 16.00 18.00 20.00 24.00 27.99 30.00 32.01 35.98∅T(1)168.3 219.1 273 323.9 355.6 406.4 457.2 508 609.6 711 762 813 9146.36 8.33 10.42 12.39 13.62 15.62 17.63 19.64 23.5 27.41 29.37 31.39 35.41∅S(1)161.5 211.5 264.6 314.7 346 396.8 447.8 498.9 596.9 696.3 746.1 797.2 899.515.55 16.14 17.91 18.90 20.87 21.85 23.23 24.61 26.77 29.53 30.51 32.68 35.63L 395 410 455 480 530 555 590 625 680 750 775 830 90525.91 26.89 28.27 30.71 33.07 34.92 37.32 40.75 46.06 49.21 25.28 58.07 66.93

H 658 683 718 780 840 887 948 1035 1170 1250 1328 1475 1700

Cv 1600 2400 3900 5200 8200 11000 12500 16200 25000 33500 38000 43000 53000

26

DIMENSIONS & FLOW COEFICIENT Cv

(1) ASME B16.25.

PART ASTM PART ASTM

Body A 351 CF3M Shaft A 182 F316Stem A 182 F316 Gasket GraphiteDisc A 351 CF8M Stud A 320 B8MMetallic seal Copper Alloy Nut A 1948

STANDARD MATERIALS

S.A.SIDE-ENTRY BUTTERFLY VALVES

6–36” (150–900 mm) ASME CLASS 150BUTT WELD ENDS

∅S

L

∅T

H

Page 26: Velan TORQUE SEAL VALVE

VALVE SIZE in/mmNOMINAL

3 4 6 8 10 12 14 16 18 20 24 28 30 32 36DIAMETER80 100 150 200 250 300 350 400 450 500 600 700 750 800 900

5.16 9.02 11.02 13.50 16.02 19.02 21.02 23.50 25.00 27.52 32.01 36.50 38.78 41.73 46.06∅T(1)191 229 280 343 407 483 534 597 635 699 813 927 985 1060 11703.15 3.94 5.91 7.87 9.84 11.81 13.19 15.16 17.13 19.09 23.03 26.77 28.54 30.71 34.65∅S(1)80 100 150 200 250 300 335 385 435 485 585 680 725 780 880

4.49 5.00 5.51 5.98 6.50 7.01 7.48 8.50 8.74 9.02 10.51 11.50 12.13 12.52 12.99L(2)114 127 140 152 165 178 190 216 222 229 267 292 308 318 3307.09 7.48 8.27 9.06 9.84 10.63 11.42 12.20 12.99 13.78 15.35 16.93 17.72 18.50 20.08L(3)180 190 210 230 250 270 290 310 330 350 390 430 450 470 510

25.98 25.98 25.91 26.89 28.27 30.70 33.07 34.92 37.32 40.75 46.06 49.21 52.28 58.07 66.93H 660 660 658 683 718 780 840 887 948 1035 1170 1250 1328 1475 1700Cv 500 800 1600 2400 3900 5200 8200 11000 12500 16200 25000 33500 38000 43000 53000

27

(1) ASME B16.25. (2) ISO 5752 short pattern or BS 5155. (3) ISO 5752 long pattern or DIN 3202 F4

PART ASTM PART ASTM

Body A 351 CF3M Shaft A 182 F316Stem A 182 F316 Gasket GraphiteDisc A 351 CF8M Stud A 320 B8MMetallic seal Copper Alloy Nut A 1948

STANDARD MATERIALS

S.A.FLANGED BUTTERFLY VALVES

3–36” (80–900 mm) ASME CLASS 150LONG PATTERN TO B16.10, SHORT PATTERN TO ISO 5752

∅S

L

∅T

H

NOTE: Flat (FF) and smooth finish (SF) faces.

Page 27: Velan TORQUE SEAL VALVE

28

CERTIFICATIONS, APPROVALS & REFERENCES

CERTIFICATIONS� ISO 9001, TÜV

APPROVALS� N.K., JAPAN

� VERITAS

� LLOYD

� GAZ DE FRANCE

� AIR LIQUIDE

� KOREA GAS

REFERENCES:� LNG TANKERS

1975 – 2 BRUNEI Shell Tankers1977-1981 – 4 Sonatrach (Algeria)1981-1982 – 5 Malasian LNG1997 – Hanjin Shipping

� LNG TERMINALS

1993 – Chinese Petroleum (Taiwan), YUNG AN1994 – Gaz de France, Montoir de Bretagne1994-1998 – Korea Gas, IN-CHON Extensions1999 – Gaz de France, Montoir de Bretagne extension

– INITEC, Barcelona, Spain – ENGAS

� SPACE APPLICATIONS: Liquid Hydrogen at -252°C

1987-1998 – 6 installations for ARIANE launching1991-1992 – European Transonic Windtunnel

Page 28: Velan TORQUE SEAL VALVE

29

HOW TO ORDER

TYPE OF CONNECTION

A– SpecialB– Butt weld P – Flanged, API 605 > 24"C– Combination R – Flanged, ring jointF – Flanged,B16.5 (MSS> 24") U – Undrilled flangesL – Lug W– Wafer

SIZE OF CONNECTION∗

Customers have the choice of specifying valve size as part of the valve figure (“B”) using the numbers below, or indicating valve size separately.10 – 3” 15 – 8” 21 – 18” 30 – 30”11 – 31⁄2” 16 – 10” 22 – 20” 32 – 32”12 – 4” 18 – 12” 24 – 24” 34 – 34”13 – 5” 19 – 14” 26 – 26” 36 – 36”14 – 6” 20 – 16” 28 – 28” 99 – Special

PRESSURE RATING

0 – 1501 – 300

VALVE TYPE

A – Metal seat seal in disc (API 609 Long Pat. ) ASME B16.10

B – Metal seat seal in disc (API 609 short pat. ) ISO 5752

C – Metal seat seal in disc lug, wafer

SEAL RING

A– SS 316 + Grafoil G – SS 316 (solid)B– SS 410 + Grafoil H – Monel (solid)C– Monel + Grafoil J – Alloy 20 (solid)D– Alloy 20 + Grafoil K – Inconel (solid)E – Inconel + Grafoil L – Xm19, (Nitronic 50)F – Hastelloy + Grafoil P – Duplex SS + Grafoil

Z – Special

EE

DD

CC

BB

AA

SIZE OFCONNECTION*

VALVETYPE

BODYMATERIAL

BEARINGMATERIAL

SEAT/SEALMATERIAL

A B C D E

DISCMATERIAL

HF G

TYPE OFCONNECTION

F 1 4 — 1 B A O 2 — D A B AEXAMPLE: Flanged, 6”, Class 300, metal seal in disc, short pattern, carbon steel with stainless steel trim.

SHAFTMATERIAL

I

SPECIALSERVICE OR

DESIGN

J

BEARING MATERIAL

A – SS 316 Nitrided D– SS Nitrided G – HastelloyB – XM19, (Nitronic 50) E – Monel H – Alloy 20C – CS Nitrided F – Inconel J – Stellite

DISC

A – Same as body platedB – Same as body not platedC – SS 316, CF8ME – MonelF – InconelG – HastelloyH – Alloy 20Z – Special

SHAFT

A – SS 410 D– SS 630 G – HastelloyB – SS 316 E – Monel H – Alloy 20C – XM19, (Nitronic 50) F – Inconel Z – Special

SPECIAL SERVICE

A – Standard J – Vacuum serviceC – Chlorine service N– NuclearF – LNG P – PowdersG – Oxygen service R – CokerH – Cryogenic service X– SpecialI – NACE

JJ

II

HH

GG

BODY MATERIAL

01 – Special 19 – Monel02 – A105, WCB 20 – Inconel C03 – Chr, Moly, F1 WC1 21 – Hastelloy Gr.504 – Chr, Moly F5, C5 22 – Titanium05 – Chr. Moly, F11, WC6 23 – Alloy 2006 – Chr, Moly F22, WC9 31 – LCC09 – Chr. Moly, F9, C12 32 – SS F5110 – SS F316H 34 – F9113 – SS F316, CF8M 37 – Incoloy

FF

— —

METAL-SEATED TRIPLE OFFSET BUTTERFLY VALVES

PRESSURERATING

* For side-entry cryogenic figure numbers, please consult with the factory