Pictorial Index - Dynamic and Static Restraints

Installation and Maintenance instructions are available for all products listed in this and our other catalogues.These are comprehensive documents written for specific products, and are available on request from our Quality Assurance Department.

HydraulicShock Arrestor

Page 102, 103m 104 & 105

High Stiffness

Pipe ClampsPage 124 & 125

Riser ClampsPage 136, 138 & 139 Structural

AttachmentsPage 140 & 141

Whip RestraintsPage 132

04/10101

SpringSway Brace

Page 118 & 119Rigid Struts

Page 120 & 121

Riser ClampsPage 124, 126 & 127

StructuralAttachments

Page 128 to131

Yoke Restraint ClampsPage 122& 123

‘200’ Short SeriesHydraulic Shock and Sway Suppressor

Page 106 to 117

‘HS’ Series

Dynamic and Static RestraintsHYDRAULIC SHOCK ARRESTORS - “HS” SERIES

The Carpenter & Paterson hydraulic shock arrestor is a velocity sensitivedevice for restraining pipework and/or equipment subject to shock force orvibration.

During normal pipe expansions or contractions the shock arrestor offers verylittle resistance to pipe movement. This resistance to normal thermalmovements (pipe velocity less than 1mm/second and with amplitude ofvibration less than 3mm) is less than 2 per cent of the rated load of thearrestor.

Activation of the shock arrestor is controlled by means of a compression andtension control valve. During normal pipe movement excursions the controlvalves are held in the open position by means of a small helical coil spring,thereby allowing free passage of the hydraulic fluid from one side of thepiston to the other. This mode is termed FREE FLOW CONDITION.

At the activation velocity normally set at 3 to 5 mm per second, the differentialpressure across the control valve overcomes the resistance of the coil springthereby causing the control valve to close.

The effect is to close the hydraulic circuit and to restrain the piston with thehydraulic fluid. This mode is termed the LOCKED CONDITION.

To ensure movement of the piston under load at a controlled speed, and also toassist the control valve to lift without full load reversal, the shock arrestor is fittedwith an adjustable needle/orifice valve.

This secondary valve permits hydraulic fluid to bypass the main control valve at acontrolled rate.

The needle valve is normally set to restrict the velocity of the piston to a maximumspeed of 2 mm per second at the rated load of the shock arrestor. This mode istermed CREEP or BLEED RATE.

Release of the control valve is achieved at some 2 per cent of the rated load,together with a velocity reduction to zero, this will return the shock arrestor to thefree flow condition.

The activation velocity can be changed by fitting different size control valves. Thebleed velocity can be changed by means of adjustment to the needle valve setting.

These modifications should only be carried out in conjunction with a test standfacility.

The provision for adjustment of the bleed rate is a patented feature of this shockarrestor. The shock arrestor is fitted with a spring loaded reservoir. The springapplies an internal pressure of about 4 bars to the cylinder, this ensures no fluidleakages under the free flow condition. This positive internal pressure also ensuresthat no air can be drawn into the hydraulic circuit during operation.

The capacity of the reservoir is normally 10 per cent of the cylinder capacity.

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Dynamic and Static Restraints

Standard Design Features1. Pipework and equipment movement is limited in a shock/vibration

situation in a controlled manner.2. Adjustable needle valve for bleed velocity setting.3. Polyurethane Elastomer Seals.4. Silicon based hydraulic fluid.5. Spherical self-aligningmaintenance free bearings fitted

both ends allowing ± 5° of angular motion.6. Pressurised reservoir allowing mounting in any spatial orientation.7. Low resistance to normal thermal movement.8. Functions in both tension and compression.9. Direct reading fluid level indicator.

10. Preset at mid-stroke position, unless otherwise specified.

Optional Design Features1. Stroke position indicator.2. Integral relief valve factory preset at 133 per cent rated load.3. Remote indication of piston position and fluid level.4. Ethylene Propylene Elastomer Seals.

FinishThe standard finish is hammer green. Other finishes such as galvanised orcarbozinc 11, etc., are also available.

Testing Prior to DispatchAll shock arrestors are subject to functional testing prior to dispatch and thegraph opposite is typical of plot produced on our 25000 test stand.

Operating ParametersActivation velocity: 3 to 5 mm/sec.Bleed Rate: 0.5 to 2 mm/sec.Frequency Range: 0.5 to 50 HzControl valve release: 2 per cent of rated loadDrag load: Max. 2 per cent of rated loadMaximum operating temperature: 100°CMaximum short term peak: 110°CAccumulated radiation dose: 1 x 107 rads

These are the standard Carpenter & Paterson settings, variations to the standardsettings can be achieved with minor changes to standard shock arrestors. Therated loads stated in this catalogue can be considered as the normal and upsetloads level A and B.

MECHANICAL SHOCK ARRESTORSDetails available on request.

04/10103

Dynamic and Static RestraintsFIG. HS 2-3-4 FIG. HS 5-6

HYDRAULIC SHOCK ARRESTOR

Type No Bore MaxForce Kg

Stroke A B C D E F G H J ApproxWeight Kg

HS2/150 50 3000 150 787 309 273 205 80 40 75 25 60 141550HS2/300 50 3000 300 1168 461 426 281 80 40 75 25 60 18

HS2/450 50 3000 450 1548 613 578 357 80 40 75 25 60 22HS3/150 75 7000 150 861 319 324 218 108 54 113 25 60 32

1625HS3/300 75 7000 300 1242 472 476 294 108 54 113 25 60 41HS3/450 75 7000 450 1623 624 630 369 108 54 113 25 60 50HS4/150 100 12500 150 936 360 330 246 136 68 121 35 80 58

1700HS4/300 100 12500 300 1317 512 484 321 136 68 121 35 80 70HS4/450 100 12500 450 1698 665 636 397 136 68 121 35 80 82

HYDRAULIC SHOCK ARRESTOR

Type No Bore MaxForce Kg

Stroke A B C D E F G H J ApproxWeight Kg

HS5/150 125 19000 150 1000 389 344 268 204 95 124 45 95 1052300HS5/300 125 19000 300 1382 542 496 344 204 95 124 45 95 116

HS5/450 125 19000 450 1762 694 648 420 204 95 124 45 95 127HS6/150 150 27000 150 1050 414 344 292 241 108 135 50 110 140

2360HS6/300 150 27000 300 1431 566 496 369 241 108 135 50 110 161HS6/450 150 27000 450 1863 770 648 445 241 108 135 50 110 182

HS2/150 50 3000 150 787 309 273 205 80 40 75 25 60 141550HS2/300 50 3000 300 1168 461 426 281 80 40 75 25 60 18

HS2/450 50 3000 450 1548 613 578 357 80 40 75 25 60 22HS3/150 75 7000 150 861 319 324 218 108 54 113 25 60 32

1625HS3/300 75 7000 300 1242 472 476 294 108 54 113 25 60 41HS3/450 75 7000 450 1623 624 630 369 108 54 113 25 60 50HS4/150 100 12500 150 936 360 330 246 136 68 121 35 80 58

1700HS4/300 100 12500 300 1317 512 484 321 136 68 121 35 80 70HS4/450 100 12500 450 1698 665 636 397 136 68 121 35 80 8204/10

104

HS2/75 50 3000 75 592 237 200 155 80 40 75 25 60 10

Max AllowableLength at

Mid Position

Max AllowableLength at

Mid Position

Dynamic and Static Restraints

FIG. HS 8-10

HYDRAULIC SHOCK ARRESTOR

Type No Bore MaxForce Kg

Stroke A B C D E F G H J ApproxWeight Kg

������������������ ����� ��������

HS8/75 200 50000 75 840 300 395 145 325 152 248 90 150 270 840HS8/150 200 50000 150 1040 335 560 145 325 152 248 90 150 285 1040

HS10/75 250 75000 75 1000 355 490 155 445 217 340 110 190 520 1000HS10/150 250 75000 150 1190 395 640 155 445 217 340 110 190 550 1190

04/10105

Max AllowableLength at

Mid Position

Dynamic and Static Restraints

10604/10

Hydraulic Shock and Sway Suppressors

ApplicationsThe “200 series” hydraulic shock-and sway suppressors are used to preventdamage to appliances, pipework, pressure vessels, valves and pumps whichmight otherwise be caused by dynamic forces applied suddenly. Theseinclude dynamic loading occurring during operation (water hammer,pipebursts or shocks caused by safety-valves blowing off), and on the otherhand by external influences (earthquakes, explosions and wind loads). Inaddition, the snubbers can be used as oscillation-dampers for oscillatingpipework and plant components, provided the amplitude exceeds 0.5mm.

By using the snubbers the dynamic displacement is reduced to a minimum.Movements caused by temperature alteration are not obstructed by thesnubbers.

FunctionOn imposition of a dynamic load moving the piston faster than the responsepreset velocity, the snubber valve closes and the snubber absorbs the force.The overflow valve or the bypass valve has the task of limiting the pistonmovement to the specified nominal loading.

Construction Features“200 series” Snubbers can be installed in any desired position. The fluid levelin the snubbers can be easily and reliably observed from the relative positionsof the pistons rods.

“200 Series” Snubbers are modular designed. Matching and alterations tosuit requirements are very easy to accomplish. This is how special solutionscan be offered so quickly, in accordance with the customerʼs requirements

The snubber has two independently-operating pairs of valves, accessibleexternally. By this means the snubber can be optimised to the customerʼsrequirements on the test-bench (response velocity, bypass velocity andreaction travel). Even after installation, adjustment is possible if required.Due to the independently-operating lock-up valves, the snubbers also haveadequate power when working in tension and compression directions at highfrequency rates. When changing direction, the second valve can react beforethe first valve has returned to its starting position.

The “200 series” Snubbers have only very little frictional and startingresistances, because friction areas are very small. We placed a high priorityon low friction when selecting the sealing materials.The initial pressure in the system required for tightness is very low. The sealsare all made of high quality materials and have a very long service life.

“200 Series” Hydraulic Shock and Sway Suppressors (Snubbers)

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Dynamic and Static Restraints

04/10107

“200 Series” Hydraulic Shock and Sway Suppressors (Snubbers)

When the “200 series” snubbers were designed, the following standards weretaken into account:VGB – Power-Tech guideline R510LKTA – Nuclear Safety Standards Commission 3205.3BS 3974, Part 1ANSI B31.1MSS SP 58MSS SP 69SVDB guidelinesASME Section III, Sub-section NF

Models Available

“200 series” hydraulic snubbers are available as a standard model, and as aspecial model designed for low temperature and offshore uses:

Standard Model- Housing parts coated with extremely corrosion-resistant zinc-iron coating

10 - 15µm.- Piston rods coated all round with 40µm electroless nickel and the shaftadditionally coated with 20µm of hard chrome.

Special Model- Housing parts of 1.4301 stainless steel and additionally galvanised with 15µm nickel coating.- Piston rods are made of chloride-resistant stainless steel with a 10 µmhard chrome coating on the shaft.Further material combinations and special coatings are available at thecustomer�s request.

Standard settings and test values at room temperature in accordance withKTA 3205.3 and VGB-R510L:Starting Resistance: max 2% of the nominal load

(or 300 N for snubbers with a nom. load less or equal15 kN)

Frictional Resistance: max 2% of the nominal load(or 200 N for snubbers with a nom. load less or equal 10 kN)

Response Velocity: 3 – 6 mm/sBypass Velocity 0.2 – 2.0 mm/sPiston Rod Travel Sa: >0.5mm (lost motion)Piston Rod Travel Sb: <amount +/- 0.02 nominal travel (peak to peak)Temperature: max. operating temperature 80˚C

(short-time operating temperature for a duration atmax. 3 hours 150˚C)

Deflections: max. deflection cross to the bolt axis: ± 70˚max. deflection in the bolt axis: ± 5˚

Dynamic and Static Restraints

10804/10

Hydraulic Shock and Sway Suppressor

snubber body with 2 rod eyes snubber body with 2 rod eyes

1 rear bracket EHS14 S at the fixpoint 1 rear bracket EHS14 S at the fixpoint

1 special dynamic pipe clamp 1 extension piece (201S, C, W)

1 special dynamic pipe clamp

Option 3: Option 3:

snubber body with 2 rod eyes snubber body with 2 rod eyes

2 rear brackets EHS14 S 2 rear bracket EHS14 S

1 extension piece (201S, C, W)

Option 2: Option 2:

snubber body with 2 rod eyes snubber body with 2 rod eyes

1 rear bracket EHS14 S at the fixpoint 1 rear bracket EHS14 S at the fixpoint

1 extension piece (201S, C, W)

Option 1: Option 1:

Fig. 200A, 200B, 202A Fig. 201A, 201B, 203A

snubber body with snubber body with 2 rod eyes

2 rod eyes 1 extension piece (201S, C, W)

Option 0: Option 0:

Figures without extension Figures with extension

Option 0

Option 1

Option 2

Option 3

Option 0

Option 1

Option 2

Option 3

Option 0

Option 1

Option 2

Option 3

Option 0

Option 1

Option 2

Option 3

Option 0

Option 1

Option 2

Option 3

Option 0

Option 1

Option 2

Option 3

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Dynamic and Static Restraints

04/10109

Hydraulic Shock and Sway Suppressor

201A201A,201B201A,201B201A,201B

201A201A201A203A203A203A203A203A203A203A203A203A

203A

* = KTA Nuclear Safety Commision 3205.3** = ASME Section III, Sub-section NF

12767

27463

Cylinder - boresize Load case H* [kN]

C** Emergency D** Faulted

1 x FN 1,5 x FN 1,7 x FN

12

Load case HZ* [kN] Load case HS* [kN]

1 1/2 200A,200B 20 22

inch A / B** Nominal load¼, ½,1 200A/200B 8 10

3 1/4 200A,200B 117 1332 1/2 200A,200B 68 77

5 200A 303 3434 200A 182 206

8 ½ 202A 885 10036 200A 455 515

590

12 202A 1800 204010 202A 1253 1419

1200835

17 202A 3705 4199247014 202A 2595 29411730

20 1/2 202A 5415 6137361024 1/2 202A 7695 8721

43

29 1/2 202A 11265751035 1/2 202A 16223 1838510815

202A 2423316155

78121202303

5130

FigureFigurewith

extension

1345

Allowable Loads:

Dynamic and Static Restraints

11004/10

Hydraulic Shock and Sway Suppressor

Figures 200A, 201A

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Dynamic and Static Restraints

04/10111

L 1 L 1 L 2 L 2 L 3 ØD L 4 L 5 R F S S 1 E HS

Nominal load min. max. min. max. 14 S

kN inch mm S ize kg

5" 127 425 552 445 317 155 55 14,2

10" 254 552 806 572 444 155 55 15,7

15" 381 679 1060 699 571 165 65 18,4

5" 127 440 567 475 330 175 65 27,1

10" 254 567 821 602 457 195 90 36,0

15" 381 694 1075 729 584 195 90 41,4

20" 508 821 1329 856 711 195 90 46,9

5" 127 488 615 531 355 245 105 45,0

10" 254 615 869 658 482 245 105 58,0

15" 381 742 1123 785 609 245 105 65,8

20" 508 869 1377 912 736 245 105 73,7

5" 127 545 672 603 362 260 105 59,0

10" 254 672 926 730 489 260 105 73,0

15" 381 799 1180 857 616 260 105 83,2

20" 508 926 1434 984 743 260 105 93,4

5" 127 625 752 695 381 295 105 77,0

10" 254 752 1006 822 508 295 105 93,0

15" 381 879 1260 949 635 325 134 106,3

20" 508 1006 1514 1076 762 325 134 119,6

5" 127 697 824 779 420 355 134 106,0

10" 254 824 1078 906 547 355 134 126,0

15" 381 951 1332 1033 674 355 134 145,2

20" 508 1078 1586 1160 801 355 134 164,4

S pecial s rokes on reques t

F ig. 200A without extens ion pieceF ig. 201A with extens ion piece

67,5

80

100

130

145

180

210

22 90

F ig. 200A / 201A

137

125 119

90 93

62

1 1/2" 13 1500

S trokeS ize

E

F

G

25

B

H

35

45

60

70

Weight

D

15 42 66

6"

5"

4"

3 1/4" 78

121

202

303

3000

3000

mm

52 58 34

4171

140

51

2000

2500

3000

2 1/2" 45

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Dynamic and Static Restraints

11204/10

Hydraulic Shock and Sway Suppressor

Figures 200B, 201B

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Dynamic and Static Restraints

04/10113

L3L2maxmin

L5F ig. 200B /201B ØDmax

WeightF SL4L2L1Nominal load minS troke

L1 R14 S

S 1 EHS

F ig. 200B without extens ionF ig. 201B with extens ion

120 87 81 A 10,0384 1000 287 12 28 491/2" 5 5" 127,0 364 491287 10 28 49 14,5 1201/4" 3 5" 127,0 364 491

437

max.min.

413540

384

384 1000

864

10"

1372381,0

8641118

254,015"

610

20"

3 1/4 " 78609

10"

508,020"

569254,0381,0 696

41,624065

653780907

35

736

26,528,6

73763

15" 30,7715 32,8355 37,1

731

52,3

5" 127,0 483 610

47,7

58850 200

823

569

2000 25

41

1331

477604

4822500

mm

508,0

2 1/2" 45

5"

max.

1 1/2" 1315"

Nominal loadkN

774520

S izemin.S troke

13,5

19,215,045 22254,0 520

442

inch

381,0

5"

127,0

393

647

mm

S pecial s trokes from 2" to 50"on reques t

15

334

310

564

127,0

667

8231077

10"1028

1500

135

858526

70

58 32461

135

1000 287

B

D

E

103

115

96

105

130

1" 8 5" 127,0 364 491

14 SS ize

81 B120 87

87

10,015 28 49 14,5

kg81 A0 10,0

14,5

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Dynamic and Static Restraints

11404/10

Hydraulic Shock and Sway Suppressor

Figures 202A, 203A

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Dynamic and Static Restraints

04/10115

L1 L1 L2 L2 L3 L4 L5 ØD R F ØD1 E HS WeightNominal load S troke min. max. min. max. 14 S

kN mm S ize kg127 689 816 770 3100 399 161

254 816 1070 897 3100 526 192

127 742 869 830 3400 443 250

254 869 1123 957 3400 570 288

127 865 992 959 3800 512 350

254 992 1246 1086 3800 639 408

127 923 1050 1028 4200 536 515

254 1050 1304 1155 4200 663 587

S pecial bore diameters from 17" to 43" and s pec ial s trokes on reques t

F ig. 202A without extens ionF ig. 203A with extens ion

N

M

212

110

120 137,5 420

130 538

648

10" 835 164 135 90

1250 193 160 360

80 908,5" 590 I133157 428 268

J100 488 310

F ig. 202A / 203A

14" 1730

12"

S izemm

175

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11604/10

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Dynamic and Static Restraints

04/10117

“200 Series” Hydraulic Shock and Sway Suppressors (Snubbers)

Dynamic and Static RestraintsSPRING SWAY BRACE

The Carpenter & Paterson spring sway brace has been designed in six sizes relatedto specific pipe sizes. For normal application it is permissible to select on the basisof pipe sizes and loads. When dealing with complex situations the unit should beselected on a calculated basis.

The amount of energy required to control the pipework should be proportional to themass of the pipework. Factors such as the amplitude, frequency or vibration, thenature of the vibration and the angle of approach of the sway brace from the axis ofmovement should all be considered.

The unit comprises a pre-loaded spring which can be extended or compressed inorder to give increasing resistance in both directions. This increase in resistanceovercomes the dynamic forces generated by the equipment thereby dampingvibrations, opposing sway and absorbing shock forces.

All units have 75 mm travel in both tension and compression direction.

Size range: 1 to 6Preset loads: 23 kg to 820 kgMaximum force: 90 kg to 3270 kg

Standard Design Features1. Compact design suitable for use in a confined space.

2. All units have 75 mm travel in either direction.

3. Vibration is opposed with an instantaneous counterforce returning the pipe to itsnormal position.

4. Rod coupling allows limited rate adjustment.

5. Standard finish - green enamel.

6. SB 45 Sway Brace and Vibration Control Unit is shipped ready forinstallation.

Optional Features1. Can be supplied galvanised with plastic coated spring.

2. Larger sizes can be custom-designed to suit client’s requirements.

04/10118

Dynamic and Static Restraints

SPRING SWAY BRACE

SizePipeSize

PreloadKg

SpringRate

Kg mm

MaxForce

L

PINDIAK

PlateThick

J A

RodTakeOutB

C D E F G H

Use withStructural

Attachment

1 50-90 23 0.89 90 20 12 12 115 345 42 400 100 25 225 30RSB 15

RSB 55

2 100-200 68 2.68 270 1000 24 12 12 115 360 42 415 120 25 225 30

For Details ofStructuralAttachmentsSee Page 141

FIG. SB45

(maintenance free)

M

kg

1500

Max RodLength atMax Force

M mm

3 225-600 204 8.04 815 1000 24 12 12 115 450 42 505 150 25 280 30

4 225-600 400 16.07 1630 1000 30 20 12 168 430 58 515 140 40 270 45

5 225-600 614 24.48 2540 1000 36 20 20 168 470 58 575 150 50 312 506 225-600 820 32.66 3270 1000 36 20 20 168 520 58 625 150 50 362 50

04/10119

For Details ofStructuralAttachmentsSee Page 129

sphericalbearing

121212252525

395410500500555605

252525303030

Dynamic and Static RestraintsHIGH STIFFNESS STRUTS

This range of high stiffness rigid struts has been specificallydeveloped by Carpenter & Paterson for use in the nuclear powerindustry.

It is available in 10 sizes ranging from 300 Kg to 60000 Kg.

Stiffness values have been determined by test.

Note:

Stiffness Rate values given are for pin to pin lengths.To achieve stiffness rates above,nuts must be tightened to torque value ‘Q1’ (refer to demensionaltable).

Maintenance free

04/10120

ST

IFF

NE

SS

RA

TE

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Dynamic and Static Restraints

RS-7 65 65 32 12 57 10 375 2850 40/S40 2.1/2.8 12 29 700

HIGH STIFFNESS STRUTS

Size A B C D E FGmin

PipeN.B./Sch

Q/Q1KgF/Metre P R

MaxLoad Kg

RS-3 60 60 30 10 48 9 360 40/S40 2.1/2.1 10 22 300

FIG. RS3 - RS600

Note:

1.Set adjustment at desired “G” and tighten nuts to nominal torque valve “Q” for locking. To achievepublished stiffness rates, tighten nuts to higher torque valve “Q1”.

GMax

2850

RS-15 65 65 32 12 57 10 375 3050 50/S80 4.8/9.0 12 29 1500RS-30 90 100 45 20 73 16 555 3050 65/S80 13.8/41.5 20 35 3000

RS-55 90 100 45 20 73 16 555 3050 65/S80 13.8/41.5 20 35 5500RS-115 140 120 58 25 98 20 660 3050 80/S80 13.8/82.9 25 60 11500RS-160 150 140 63 30 108 22 790 3050 90/S80 13.8/138.2 30 65 16000RS-270 190 170 78 40 143 28 850 3050 125/S80 13.8/69.1 40 85 27000RS-360 230 200 100 45 159 32 960 3050 150/S80 13.8/69.1 45 85 36000RS-600 290 250 115 45 216 44 1120 3050 200/S80 13.8 60 135 60000

04/10121

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Dynamic and Static RestraintsYOKE TYPE RESTRAINT CLAMPS

CarbonSteel

04/10122

50

This range of high stiffness yoke clamps has been specifically developedby Carpenter & Paterson for use in the nuclear industry and for use inconjunction with our range of mechanical/hydraulic shock arrestors andrigid struts.The stiffness values of these components have been determined by test.It should be noted that the pin øP and the dimension G will depend onwhether the clamp is used in conjunction with a rigid strut or shock arrestor.These dimensions must be specified. The component detailed is for usewith a rigid strut.

NOTE: This Clamp is designed to function within a 10 cone of action,perpendicular to the pipe. Loading beyond this cone is not recommended.

MATERIALSTEMP

Comp Up To200 C

201 C& Over

YokeBody

CarbonSteel

AlloySteel

SaddleStrap

CarbonSteel

AlloySteel

U-Bolt AlloySteel

AlloySteel

Load Pin StainlessSteel

StainlessSteel

Max Load Kg

Size D G P T 350 C 510 C 538 C 566 CYRC7 20 10 12 25 700

YRC15 20 10 12 30 1500YRC55 30 16 20 45 5500YRC115 50 20 25 75 11500YRC160 60 22 30 90 16000YRC270 60 28 40 150 27000YRC360 80 32 45 200 36000YRC600 100 44 60 200 60000

Dynamic and Static Restraints

YOKE CLAMPS - DIMENSION ‘E’

PipeSize YRC 7 YRC15 YRC 55 YRC

115YRC160

YRC270

YRC360

YRC600

- - - - -65 125 125 - -80 150 150 205 -

90 160 160 210 -100 165 165 215 -125 180 180 235 -

150 190 190 245 270 -175 220 220 260 285 -200 240 240 270 295 -

225 255 255 285 310 -250 270 270 295 320 -300 295 295 320 350 385 390 - -

350 - 310 340 360 405 450 485 485400 - 335 360 385 440 455 510 510450 - 385 410 470 480 535 535

500 - 415 440 500 510 585 585550 - 435 510 535 555 605 605600 - 460 540 565 585 635 635

650 - 505 565 600 620 670 670700 - 550 590 630 650 705 705750 - 595 615 660 685 735 735

800 - 645 690 735 765 765900 - 695 735 825 810 810

FIG. YRC7 - YRC600

SizesYRC7 - YRC160

SizesYRC270, 360 & 600

04/10123

Dynamic and Static RestraintsPIPE CLAMPS AND RISER CLAMPS

This range of products are materially and dimensionally similar to the range ofPipe Clamps and Riser Clamps listed in our current Ancillary Catalogue. Theseproducts may be used in conjunction with our range of Dynamic Restraints wherestiffness is not a consideration.

Care should be taken when selecting to ensure that the load rating of the Strut,etc., is not greater than the load capacity of the Clamp. For loads greater than therated load Yoke Type Restraint Clamps should be used.

It should be noted that the pin diameters and gap C will depend on whether theclamp is used in conjunction with a Strut or Shock Arrestor. These dimensionsmust be specified. The pin and gap dimension given are suitable for a Rigid RodConnection.

The Riser Clamps are designed, in accordance with various Internationalstandards, to carry all of the Design load on one side only.

04/10124

Dynamic and Static Restraints

NotePin Ø D and Gap C will vary depending onwhether used in conjunction with Strut orShock Arrestor. See Component Section fordetails. (Pin & Gap Dimensions given aresuitable for rigid rod conn)Fig. R304 and R304H Material - Carbon Steel.Fig. R91 and R91H Material - Alloy Steel.Fig. R304 and R304H up to 400 CFig. R91 and R91H above 400 C

SWL in KgleetSyollAleetSnobraClairetaM

Temperature 340 C 400 C 510 C 538 C 566 CNom Pipe

SizePipeO/D

.oN.giF.oN.giF304 304H 304 304H 91 91H 91 91H 91 91H

15 21.3 250 250 210 210 21020 26.9 250 250 210 210 21025 33.7 250 250 210 210 21032 42.4 250 250 210 210 21040 48.3 680 635 635 455 31550 60.3 680 635 635 455 31565 76.1 680 635 635 455 31580 88.9 680 635 635 455 31590 101.6 680 635 635 455 315100 114.3 1135 1000 1045 725 500125 139.7 1135 1000 1045 725 500150 168.3 1270 3630 1135 3220 1180 3310 815 2360 590 1680175 193.7 1270 3630 1135 3220 1180 3310 815 2360 590 1680200 219.1 1270 3630 1135 3220 1180 3310 815 2360 590 1680225 244.5 1450 4990 1315 4445 1360 4535 950 3265 680 2270250 273.0 1450 4990 1315 4445 1360 4535 950 3265 680 2270300 323.9 1450 4990 1315 4445 1360 4535 950 3265 680 2270350 355.6 1950 5760 1725 5125 1770 5260 1270 3765 910 2720400 406.4 1950 5760 1725 5125 1770 5260 1270 3765 910 2720450 457.0 1950 5760 1725 5125 1770 5260 1270 3765 910 2720500 508.0 2495 6805 2220 6805 2270 6185 1450 4810 1135 3400550 558.8 2720 6805 2405 6805 2495 6185 1590 5900 1225 4080600 610.0 2720 6805 2405 6805 2495 6185 1590 5900 1225 4080650 660.4 3630 6805 3175 6805 3265 6185 2085 5900 1590 4080700 711.2 3630 6805 3175 6805 3265 6185 2085 5900 1590 4080750 762.0 3630 6805 3175 6805 3265 6185 2085 5900 1590 4080800 812.8 3630 6805 3175 6805 3265 6185 2085 5900 1590 4080900 914.4 3630 6805 3175 6805 3265 6185 2085 5900 1590 4080

FIG. R91 and R91H RestraintPipe Clip (Alloy)

FIG. R304 and R304H RestraintPipe Clip (Carbon Stl)

FIG. R91 and R304 (Moderate Loads)Nom Pipe

SizePipeO/D A B C D

SteelSize F G H

15 21.3 92 32 12 12 30x 6 110 5020 26.9 95 38 12 12 30x 6 113 5625 33.7 97 44 12 12 30x 6 115 6232 42.4 102 46 12 12 30x 6 120 6440 48.3 102 49 25 12 30x 6 120 6850 60.3 127 54 25 12 30x 6 149 7665 76.1 140 67 25 12 45x 8 162 8980 88.9 152 76 25 12 45x 8 175 9990 101.6 159 82 25 12 45x 8 181 104100 114.3 165 100 25 16 50x10 194 129125 139.7 178 114 25 16 50x10 206 142150 168.3 216 135 38 20 65x10 254 173175 193.7 230 150 38 20 65X10 268 188200 219.1 241 163 38 20 65x10 279 201225 244.5 265 180 38 20 65X12 303 218250 273.0 279 192 38 20 65x12 317 230300 323.9 305 220 38 20 65x12 343 258350 355.6 330 243 51 24 80x15 378 291400 406.4 356 273 51 24 80x15 403 320450 457.2 381 300 51 24 80x15 429 348500 508.0 406 329 51 24 80x20 457 380550 558.8 432 365 51 24 100X20 489 422600 610.0 457 390 51 24 100x20 514 447650 660.4 559 431 51 30 130X25 622 494700 711.2 585 457 51 30 130X25 648 520750 762.0 610 482 51 30 130x25 673 545800 812.8 647 508 51 30 130X25 710 571900 914.4 699 560 51 30 130x25 762 623

FIG. R91H and R304H (Heavy Loads)Nom Pipe

SizePipeO/D A B C D

SteelSize F G H

150 168.3 229 143 44 30 100x12 279 193175 193.7 241 158 44 30 110X12 291 208200 219.1 254 172 44 30 110x12 305 223225 244.5 305 198 51 36 100x20 359 258250 273.0 305 214 51 36 100x20 359 268300 323.9 330 240 51 36 100x20 384 294350 355.6 356 262 57 42 110x20 419 325400 406.4 381 292 57 42 110x25 444 355450 457.0 406 317 57 42 110x25 469 380500 508.0 457 353 57 42 130x25 521 417550 558.8 483 393 57 42 150X30 559 469600 610.0 508 418 57 42 150x30 584 494650 660.4 581 443 57 42 150X30 657 519700 711.2 610 472 57 42 150X30 686 548750 762.0 635 497 57 42 150x30 711 573800 812.8 661 525 57 42 150X30 737 601900 914.4 711 575 57 42 150x30 787 651

04/10125

ClipI/D

28

44

62

92

118

172

224

278

362

464

566

670

773

926

23

36

50

80

106

144

198

248

330

412

516

618

721

824

Dynamic and Static RestraintsFIG. R128 Riser Clamps

Using Charts:(a) Enter lower chart @ Rod Centres = 1100 mm

Move Horizontally to the right until the slopingline 400 pipe size is intersected.

(b) Project this intersection Vertically upwards.(c) Enter upper chart @ load = 10,000 Kg.

Move Horizontally to the right until theVertical line from (b) is intersected.

(d) Read Stock Size off curve immediatelyabove the (c) intersection.

Solution: Stock Size = 250 x 45 Type 2.Bolt Size = M48(Selected on Uncorrected Load).

Stress-Temperature Correction Factors

Design CTemperature

Material

Carbon StCr-1 Mo

BS 1501PT2-622

Stain StlType 316

343 0.8 0.8 0.7371 0.85 0.8 0.71399 0.93 0.8 0.71427 0.8 0.72

37.038.0454482 0.92 0.75

08.01.1015538 1.5 0.86

99.02.2665593 1.2

8.1026640 2.3

0.3056

Stress Temperature Correction FactorThe Selection Chart on the opposing page is based on a maximumallowable stress in the clamp of 8.50 kg/mm2. The table of Stress -Temperature correction factors gives STCF for the more commonlyused materials.STCF = 8.50

S.A. @ Design Temperatureor Corrected load = Calculated Load x STCF.Typical Example:Given: Pipe Nominal Bore = 400 mm.Load = 9090 Kg.Rod Centres C - C = 1100 mm.Temperature = 510 CProcedure: Stock Material - Alloy Steel.21/4% Cr 1% Mo.Correction Factor from table STCF = 1.1.Corrected Load = 9090 x 1,1 = 10,000 Kg.

Note: Where vertical pipes are supported by rigid struts/snubbers the riser clamp shallbe selected to carry the load safely in either component (i.e. input 2x design load intothe table) unless the arrangement prevents the load distribution becoming unequal(i.e. using sway braces)

04/10126

70,00060,00050,000

40,000

30,000

25,000

20,000

15,000

12,000

10,000

8,000

6,000

4,000

3,000

2,000

1,500

1,000

TotalLoad(kg)

500

Note: Where vertical pipes are supported by rigid struts the riser clamp shall beselected to carry the load safely in either component (i.e. input 2x design load intothe table) unless the Arrangement prevents the load distribution becoming unequal(i.e. using sway braces or snubbers)

21/4%

Dynamic and Static Restraints

04/10127

70,000

60,000

50,000

40,000

30,000

25,000

20,000

15,000

12,000

10,000

8,000

6,000

4,000

3,000

2,000

1,500

1,000

TotalLoad(kg)

500

Dynamic and Static RestraintsFIG. No. HSB2 - HSB10 for use with Hydraulic Shock Arrestor

Structural Attachments Hydraulic Shock ArrestorSize A B C D E F G T

HSB2 150 130 60 25 75 25 50 20HSB3 150 130 60 25 75 25 50 20HSB4 200 150 80 35 100 30 65 20HSB5 220 200 95 45 120 30 75 25HSB6 250 220 110 50 140 40 90 30HSB8 300 300 150 90 180 40 120 40HSB10 350 330 190 110 210 40 140 40

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Dynamic and Static RestraintsFIG. No. RSB3-RSB600 for use with Rigid Struts

Structural Attachment Rigid StrutsSize A B C D E F G H J T

RSB-3 60 60 25 10 48 10 22 22 - 10RSB-7 65 65 30 12 57 12 25 25 - 10RSB-15 65 65 30 12 57 12 25 25 - 10RSB-30 90 100 50 20 73 20 34 34 - 12RSB-55 90 100 50 20 73 20 34 34 - 12

RSB-115 140 120 60 25 98 25 45 45 70 15RSB-160 150 140 70 30 108 30 50 50 73 20RSB-270 190 170 80 40 143 40 65 65 100 25RSB-360 230 200 95 45 159 45 75 75 105 30RSB-600 290 250 110 60 216 45 90 90 150 45

Type: Sizes RSB3-RSB55 Type: Sizes RSB115-RSB600

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Dynamic and Static Restraints

04/10130

EHS 14S, Rear bracket, Size A0-N for use with “200 Series” Hydraulic Shock and Sway Suppressors

Version B:On request

13104/10 Dynamic and Static Restraints

200 135 71,7 460 315 110 120 420 9 16 17 6 10 11 151

225 135 86,9 470 330 120 135 420 13 20 22 8 13 15 202,8

M 1250 12"

N 1750 14"

120 70,5 44,5 260 240 60 65 220 4 6 6 4 4 4 36,5

140 80,5 49,5 340 280 70 75 250 4 8 8 4 4 5 64,2

155 90,5 55,5 420 300 80 90 270 5 9 9 4 5 6 93,2

170 120 61,7 320 290 90 100 280 7 11 13 6 8 9 87,1

G 234 5"

H 380 6"

I 600 8 ½"

J 835 10"

EH

S14S

60 35,5 20,5 120 120 25 30 80 4 4 4 4 4 4 3,8

70 40,5 25,5 140 140 35 30 100 4 4 4 4 4 4 6,8

85 55,5 32,5 180 180 45 45 150 4 5 5 4 4 4 13,8

D 45 2 ½"

E 78 3 ¼"

F 130 4"

4S

a

WeightE S S1 A BØD

RM/

S235JRG2* S355J2G3

a

����=0° ����=30° ����=70° ����=0° ����=30° ����=70°

kg

26 15,5 9,5 34 34 10 10 20 4 4 4 4 4 4 0,3

35 15,5 10,5 55 65 12 15 30 4 4 4 4 4 4 0,5

40 18,5 12,5 65 80 15 17,5 35 4 4 4 4 4 4 1

WeightE S S1 A B

mm

H7R

M1S235JRG2* S355J2G3HSB

Nominal

kN

A0 3 1"

A 5

B 13 1 ½"

HSB

SizeSize load

EHS1

4S

200SeriesSize

¼"

½"

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8 131”

11/2”

Dynamic and Static Restraints

The Carpenter & Paterson pipe whip restraint is an elastic device whichrestrains pipework and absorbs energy in the event of a pipe failure.

In the unlikely event of a rupture or break in a pressure piping system,the large jet forces generated by the escaping fluid may cause thepipework to ‘whip’, that is, to move in a direction which is at an angle tothe original longitudinal axis of the pipe.

It is desirable to provide pipe restraint devices which will limit themovement of the ruptured pipe, and to prevent impact damage to localcomponents.

This type of whip restraint offers the following features:-

1. The restraint absorbs the energy of the moving pipe and has highenergy absorption in relation to its size.

2. The restraint is compact in size.

3. The restraint provides a relatively large normal clearance betweenthe restraint and the pipe to allow for normal thermal movement.

4. Design of restraints undertaken to suit specific customerrequirements.

PIPE WHIP RESTRAINTS

04/10132