Hy Span 3500 Brochure

Series 3500Externally Pressurized Expansion Joints

Catalog 574 H

Series 3500 Externally Pressurized Expansion Joints

2 Copyright © 2004 Hyspan Precision Products, Inc.Printed in the USA

• Standard Designs Sizes 2" through24", 150 & 300 PSIG at 500°F

• Axial Travel of 4", 6" & 8" for SingleConfigurations 8", 12" & 16" for DualAnchor Base Configurations

• Maximum Flexibility and Extended Life• Low Spring Forces and Pressure Thrust• Standard In-Line Pressure Balanced

Configurations

Since the externally pressured expansionjoint design was introduced to the piping

industry in 1972 by Hyspan, it hasbecome a standard in piping systemdesign. This configuration has a totallyenclosed bellows that is protectedfrom the flow on the interior, and theenvironment on the exterior by standardweight pipe. Since the media is on theexterior of the bellows it is self draining,and bellows instability or squirm is nota consideration. Rigid guides on theinterior and exterior ensure alignmentof the bellows.

The proven design of Hyspan Series3500 Externally Pressurized ExpansionJoints excels because of close attentionto detail design and high quality work-manship. Since 1982 Hyspan hasoffered a full five year replacementwarranty (Page 15) on the standarddesign expansion joints. These designsoffer an affordable product with aproven service record without the useof expensive high nickel alloys.

Table of Contents

Design Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

In-Line Seismic Expansion Joint . . . . . . . . . . . . . . . . . . .4

Travel Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Anchor Forces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Table 1 Thermal Expansion . . . . . . . . . . . . . . . . . . . . . . .5

Table 2 Pressure and Force Data . . . . . . . . . . . . . . . . . . .6

Table 3 Intermediate Pipe Guide Spacing . . . . . . . . . . . . .6

Materials of Construction & Dimensional Data . . . . . . . .7

Table 4 Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . .7

Ordering Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Table 5 Type 3501 & 3502 150 psig Design Data . . . . . .8

Table 6 Type 3505 & 3506 150 psig Design Data . . . . . .9

Table 7 Type 3501 & 3502 300 psig Design Data . . . . .10

Table 8 Type 3505 & 3506 300 psig Design Data . . . . .11

In-Line Pressure Balanced Expansion Joints . . . . . . . . .12

Table 9 3501PB & 3502PB 150 psig Design Data . . . . .12

Table 10 3501PB & 3502PB 300 psig Design Data . . . .13

Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . .14-15

Five Year Limited Warranty . . . . . . . . . . . . . . . . . . . . .15

3Series 3500

Series 3500 expansion joints aredesigned for installations where theprincipal movement is axial. Standardsingle configurations are designed for4", 6" and 8" of axial compression (pipeexpansion) and 1", 2" and 2" extensionrespectively. Dual configurations aredesigned for 8", 12" and 16" of axialcompression and 2", 4" and 4" extensionrespectively. If the primary movement isextension (pipe contraction) the expan-sion joint can be preset at the factory.The piping system must include anchorsto react the force produced by pressurethrust and the bellows spring constant,supports to react the weight of the pipeand media, and guides to ensure thatthe pipe alignment is maintained.

Applications

Design Features

Single Expansion Joint, 3501 or 3502 Adjacent to Main Anchor

Single Expansion Joint, 3501 or 3502 Located in the Middle of a Run

Two or More Single Expansion Joints 3501 or 3502 with Intermediate Anchors

Dual Anchor Base Expansion Joint 3505 or 3506 Located in the Center of a Run

In-Line Pressure Balanced Expansion Joint 3501PB or 3502PB withIntermediate Anchors

In-Line Seismic Expansion Joint 3500IS

Applications, Continued


Hyspan Series 3500 expansion joints arecombined with Hyspan Barco ball jointsto create an in-line rugged maintenancefree product that can be used for seismic

connections, tank and building settling,and pipe line settling in unstable soil.Standard designs 2"-12" for 24" axialextension or compression combined

with 24" offset from centerline in anydirection. Refer to catalog material for3500IS for complete details. Horizontalor vertical installations.

See page 5 for calculation methods fortravel required and anchor forces.

See Table 3 for minimum recommendedintermediate guide spacing to ensurethat the pipe travel is translated to, andaligned with the expansion joint.

Series 9500 Pipe Guide see Catalog1004 for details.

5Series 3500

Saturated Temperature Carbon Steel AusteniticVacuum (Hg) Pressure (psig) °F °C Pipe Stainless Steel

-50 -46 -0.84 -1.240 -18 -0.49 -0.72

25 -4 -0.32 -0.4629.7 32 0 -0.27 -0.4029.6 50 10 -0.14 -0.2129.2 70 21 0 028.0 100 38 0.23 0.3426.0 125 52 0.42 0.6222.4 150 66 0.61 0.9016.3 175 80 0.80 1.186.0 200 93 0.99 1.460 212 100 1.10 1.60

4 225 107 1.21 1.755 250 121 1.40 2.0331 275 135 1.61 2.3252 300 149 1.82 2.6182 325 163 2.04 2.90

120 350 177 2.26 3.20169 375 191 2.48 3.50232 400 205 2.70 3.80311 425 219 2.93 4.10407 450 232 3.16 4.41525 475 246 3.39 4.71664 500 260 3.62 5.01

1 2 3 4 5 6

The axial expansion or contraction of pipe is determined by the change in temperature. In order to select the correct travelrefer to Table 1 which includes tabulated values of linear change in inches per 100 feet of pipe run for steel and stainless steelpipe. The values are based on an installation temperature of 70°F.

Piping systems incorporating Type 3501-3506 expansion joints must include structural reactions or main anchors as shownin the application diagrams that are sufficient to withstand the full pressure thrust based on the effective area of the expansionjoint, and the spring force produced by the deflection of the bellows.

The pressure force must be based on the highest pressure anticipated during service and testing.

Piping systems incorporating dual anchor base expansion joints (3505 & 3506) multiple single joints (3501 & 3502) in longruns, and pressure balanced joints (3501PB & 3502PB) must include structural reactions or intermediate anchors as shownin the application diagrams. Intermediate anchors react the force produced by the bellows spring constant.

Table 1 Thermal Expansionof Pipe per 100 feet

Linear thermal expansion of pipeper 100 feet between 70°F and thetabulated temperature.

Thermal Expansion =

Length of run x Linear change 100or contraction (inches) between anchors (feet) from Table 1

Main Anchor = Pressure Force + Spring Rate (lb./in.) X Axial Travel Force (lbs.) Table 2 (lbs) Column 2, Tables 5-8 (inches)

Intermediate = Spring Rate (lbs./in.) X

Axial Travel Anchor Force (lbs.) Column 2 Tables 5-8 (inches)

Travel Required

Anchor Forces

During installation if the temperature is substantially different from 70°F it may be necessary to preset the expansion joint.Refer to Installation Preset in the Installation Procedure on Pages 14 and 15 to determine the preset required.

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Table 2Pressure and Force Data/Series 3500 Externally Pressurized Expansion Joints

Table 3Intermediate Pipe Guide Spacing /Series 3500 Externally Pressurized Expansion Joints

Note:(1) The values listed are the center to center distance measured in feet.(2) Pipe guide spacing is a function of the expansion joint spring rate and effective area. The tabulated values are for Series

3500 expansion joints at the system design pressure listed.(3) The pressures listed are design values. Guide spacing has been calculated for the test pressure (1.5 X design).(4) Refer to Catalog 1004 for complete details on Hyspan Series 9500 Pipe Guides and their application.


Tabulated Force (pounds) for Individual PressureNominal Size Effective Area

(NPS) (square inches) 50 psig 100 psig 150 psig 200 psig 250 psig 300 psig 450 psig

2 8.2 408 817 1225 1633 2042 2451 36902 1/2 10.6 533 1067 1599 2133 2666 3200 4770

3 13.7 685 1369 2054 2738 3423 4107 61654 22.7 1135 2269 3404 4538 5673 6807 102155 35.3 1763 3526 5288 7051 8814 10577 158856 50.3 2513 5027 7540 10053 12566 15080 226358 80.5 4026 8052 12077 16103 20129 24155 3622510 115 5773 11547 17320 23093 28867 34640 5475012 164 8228 16456 24684 32912 41140 49368 7380014 206 10300 20599 30899 41199 51498 61798 9270016 258 12901 25802 38702 51603 64504 77405 11610018 318 15905 31810 47715 63620 79525 95430 14310020 390 19529 39057 58586 78114 97643 117171 17550024 541 27059 54119 81178 108238 135297 162357 2434501 2 3 4 5 6 7 8 9

7Series 3500

Materials of Construction and Dimensional Data

The following materials and specificationsare used in the construction of allstandard Series 3500 expansion joints.

Flanges: Flat face carbon steel madefrom ASME A-36 plate. Outsidediameter and drilling per ASME/ANSIB16.5. 150 lb. drilling for all 150 psigdesigns, 300 lb. drilling for all 300 psigdesigns.

Pipe: Fixed and traveling pipe nipplesand housing made from ASME A53Grade B standard weight steel pipe.Weld end preparation per ASME/ANSIB16.9. Grooved ends per ANSI/AWWAC606-87.Guide Rings: Steel plate per ASME A-36.Drain Port & Plug: 3000 lb. thread-o-letmade from ASME A105 steel forging.Bellows: Three or four ply laminated

made from ASTM A240 type 321stainless steel. The Dimensional Data in Table 4 relatesto the standard designs in Tables 5through 10.

Ordering InstructionsRefer to Tables 5 through 10 to select the configuration and service conditions required for your application. If the travelrequired is unknown, see the method of calculation on Page 5.

Example Single Expansion JointSteel pipe weld ends 3502-131-4150 psig at 500°F maximum Axial travel, 4.0" compression, 1.0" extension 4.0" axial travel maximum Size & pressure designation, 2" NPS, 150 PSIG2" NPS Type specification, steel pipe weld end both ends, steel housing and guides

Single expansion joints, 3501 and 3502, ordered with anchor based are identified as 3501AB and 3502AB. Anchor bases arestandard on dual anchor base joints, 3505 and 3506, and do not require the AB suffix. In-line pressure balanced joints areavailable as single configurations and identified as 3501PB and 3502PB—refer to Pages 12 & 13.

Table 4Dimensional Data

3501 Fixed Flange


2332217

-131-4-131-6-131-8

468

122

24.7533.7540.25

314047

24.2533.2539.75

233239

2 1/2795435

-135-4-135-6-135-8

468

122

24.7533.7540.25

445665

24.1333.1339.63

334654

3664031

-140-4-140-6-140-8

468

122

24.7533.7540.25

607787

24.1333.1339.63

466374

41217457

-148-4-148-6-148-8

468

122

24.7533.7540.25

89114131

24.1333.1339.63

7095

112

5313196139

-155-4-155-6-155-8

468

122

24.7533.7540.25

95119139

24.1333.1339.63

7398

118

6348218155

-160-4-160-6-160-8

468

122

26.5035.2541.75

141174202

25.8834.6341.13

110142171

8380234176

-167-4-167-6-167-8

468

122

26.5035.2541.75

190242275

25.7534.5041.00

145196230

10452267203

-174-4-174-6-174-8

468

122

26.5035.2541.75

259326370

25.7534.5041.00

202268313

12418253183

-180-4-180-6-180-8

468

122

28.7537.2544.50

344428478

28.0036.5043.75

261345395

141193738515

-181-4-181-6-181-8

468

122

28.7537.2544.50

429516584

28.0036.5043.75

301388456

161314813567

-182-4-182-6-182-8

468

122

28.7537.2544.50

492589666

28.0036.5043.75

338436512

181438888619

-183-4-183-6-183-8

468

122

29.5038.0045.25

528636721

28.7537.2544.50

374482567

201206748529

-184-4-184-6-184-8

468

122

29.5038.0045.25

596717811

28.7537.2544.50

415536631

241409874616

-186-4-186-6-186-8

468

122

29.5038.0045.25

742883993

28.7537.2544.50

468609719

1 2 3 4 5 6 7 8 9

NominalSize

(NPS)

AxialSpring

Rate (1)(lb/in)

Part Number350135023503

AxialCompr.(inches)

AxialExt.

(inches)Overall Length

(inches)Weight(lbs)

Overall Length(inches)

Weight(lbs)

3501 3502

Table 5 Type 3501 and 3502Design Pressure: 150 psig Test Pressure: 225 psig Design Temperature: 500°F

3502 Weld End 3505 Fixed Flange Dual Anchor Base

3506 Weld EndDual Anchor Base

9Series 3500


Note:(1) Force per inch of compression resulting from the bellows spring constant. Refer to Table 2 for pressure thrust force.(2) For Type 3505 and 3506 travel stated is the total. Travel each side of the anchor is 1/2 the tabulated value.(3) Refer to Table 4 for housing outside diameter, drain port size and anchor base details and centerline height of anchor

base models.


2684735

-331-4-331-6-331-8

468

122

24.7533.7540.25

354451

24.2533.2539.75

243441

2 1/21379359

-335-4-335-6-335-8

468

122

24.7533.7540.25

486170

24.1333.1339.63

324756

319511785

-340-4-340-6-340-8

468

122

24.7533.7540.25

708899

24.1333.1339.63

486677

4293177135

-348-4-348-6-348-8

468

122

24.7533.7540.25

105131149

24.1333.1339.63

7298115

5606377263

-355-4-355-6-355-8

468

122

24.7533.7540.25

113138160

24.1333.1339.63

75100122

6685426297

-360-4-360-6-360-8

468

122

26.5035.2541.75

175208238

25.8834.6341.13

111145175

8745457340

-367-4-367-6-367-8

468

122

26.5035.2541.75

229283318

25.7534.5041.00

148202236

10892516389

-374-4-374-6-374-8

468

122

26.5035.2541.75

307376421

25.7534.5041.00

205275320

121045628441

-380-4-380-6-380-8

468

122

28.7537.2544.50

434523573

28.0036.5043.75

267355406

1418791157794

-381-4-381-6-381-8

468

122

28.7537.2544.50

522614684

28.0036.5043.75

308398469

1620731275874

-382-4-382-6-382-8

468

122

28.7537.2544.50

598701779

28.0036.5043.75

345447527

18250315351046

-383-4-383-6-383-8

468

122

29.5038.0045.25

727840930

28.7537.2544.50

340495583

20328320141373

-384-4-384-6-384-8

468

122

29.5038.0045.25

89110231128

28.7537.2544.50

435566670

24386023681611

-386-4-386-6-386-8

468

122

29.5038.0045.25

110612591382

28.7537.2544.50

492645766

1 2 3 4 5 6 7 8 9

NominalSize

(NPS)

AxialSpring

Rate (1)(lb/in)

Part Number35013502

AxialCompr.(inches)

AxialExt.


(inches)Weight(lbs)


Weight(lbs)

3501 3502

3501 Fixed Flange 3502 Weld End 3505 Fixed Flange Dual Anchor Base

3506 Weld EndDual Anchor Base


11Series 3500

2684735

-331-8-331-12-331-16

81216

244

42.0060.0073.00

587993

41.5059.5072.50

506881

2 1/21379359

-335-8-335-12-335-16

81216

244

41.7559.7572.75

82107125

41.1359.1372.13

6792110

319511785

-340-8-340-12-340-16

81216

244

41.7559.7572.75

115150172

41.1359.1372.13

92127149

4293177135

-348-8-348-12-348-16

81216

244

41.7559.7572.75

169221236

41.1359.1372.13

136186222

5606377263

-355-8-355-12-355-16

81216

44

41.7559.7572.75

182231275

41.1359.1372.13

143192236

6685426297

-360-8-360-12-360-16

81216

244

44.2561.7574.75

280347406

43.6361.1374.13

216283342

8745457340

-367-8-367-12-367-16

81216

244

44.0061.5074.50

364471540

43.2560.7573.75

280387456

10892516389

-374-8-374-12-374-16

81216

244

43.0060.5073.50

494633724

42.2559.7572.75

388527619

121045628441

-380-8-380-12-380-16

81216

244

47.5064.5079.00

679852954

46.7563.7578.25

503681783

1418791157794

-381-8-381-12-381-16

81216

244

46.2563.2577.75

7929761115

45.5062.5077.00

571755896

1620731275874

-382-8-382-12-382-16

81216

244

46.2563.2577.75

92911351292

45.5062.5077.00

669875

1034

18250315351046

-383-8-383-12-383-16

81216

244

47.7564.7579.25

118013201500

47.0064.0078.50

738967

1142

20328320141373

-384-8-384-12-384-16

81216

244

47.7564.7579.25

134816101820

47.0064.0078.50

87811441349

24386023681611

-386-8-386-12-386-16

81216

244

47.7564.7579.25

161219182071

47.0064.0078.50

98112921529

1 2 3 4 5 6 7 8 9

NominalSize

(NPS)

AxialSpring

Rate (1)(lb/in)

Part Number35053506

Total AxialCompr.

(2)(inches)

Total AxialExt.(2)


(inches)Weight(lbs)


Weight(lbs)

3505 3506

Table 8 Type 3505 and 3506Design Pressure: 300 psig Test Pressure: 450 psig Design: Temperature 500°F

Note:(1) Force per inch of compression resulting from the bellows spring constant. Refer to Table 2 for pressure thrust force.(2) For Type 3505 and 3506 travel stated is the total. Travel each side of the anchor is 1/2 the tabulated value.(3) Refer to Table 4 for housing outside diameter, drain port size and anchor base details and centerline height of anchor

base models.


4638408320

-148-4-148-6-148-8

468

122

41.057.068.0

218296349

39.055.066.0

196274328

5885576473

-155-4-155-6-155-8

468

122

41.057.068.0

278264441

39.055.066.0

255339417

61056688569

-160-4-160-6-160-8

468

122

43.059.070.0

336436528

39.055.066.0

302400492

815771014786

-167-4-167-6-167-8

468

122

43.059.070.0

488656766

39.055.066.0

437605715

1019301241965

-174-4-174-6-174-8

468

122

43.059.070.0

587776916

40.056.067.0

521720850

12282217961518

-180-4-180-6-180-8

468

122

48.064.075.0

79810551212

42.057.069.0

705962

1109

14472630382363

-181-4-181-6-181-8

468

122

48.064.075.0

93911971405

42.057.069.0

79410531260

16511632892558

-182-4-182-6-182-8

468

122

48.064.075.0

109713861613

42.057.069.0

92212211438

18576637062882

-183-4-183-6-183-8

468

122

49.064.076.0

119115181771

42.057.069.0

101313411597

20504032412520

-184-4-184-6-184-8

468

122

49.064.076.0

134016991978

42.057.069.0

113014891768

24567436482837

-186-4-186-6-186-8

468

122

50.065.077.0

155919802306

42.057.069.0

128517061928

1 2 3 4 5 6 7 8 9

NominalSize

(NPS)

AxialSpring

Rate (1)(lb/in)

Part Number3501PB3502PB

AxialCompr.(inches)

AxialExt.


(inches)Weight(lbs)


Weight(lbs)

3501PB 3502PB

Series 3500In-Line Externally Pressurized Pressure Balanced Expansion Joints

Table 9 Type 3501PB & 3502PBDesign Pressure: 150 psig Test Pressure: 225 psig Design Temperature: 500°F

Series 3500 In-Line Pressure balancedexpansion joints provide the same benefits asthe standard design with the added advantageof internally reacting the pressure thrust bylinking an additional bellows designed withtwice the effective area of the expansionbellows. The design eliminates the require-ment for main anchors to react the pressurethrust—only intermediate anchors must beprovided to restrain the bellows spring force.Technical data is provided in Tables 9 and 10for sizes 4" through 24".

3502PB Weld End3501PB Fixed Flange

13Series 3500

41467886675

-348-4-348-6-348-8

468

122

42.058.069.0

232314368

39.055.066.0

200282336

5302818841314

-355-4-355-6-355-8

468

122

42.058.069.0

297387467

39.055.066.0

261350430

6342421321483

-360-4-360-6-360-8

468

122

44.560.570.5

367470557

39.055.066.0

310413500

8372522851699

-367-4-367-6-367-8

468

122

44.560.570.5

526701818

39.055.066.0

450625742

10445825801947

-374-4-374-6-374-8

468

122

44.560.570.5

634854980

40.056.067.0

540760886

12522331392205

-380-4-380-6-380-8

468

122

46.563.073.0

88011511307

42.057.069.0

726997

1153

14939757833968

-381-4-381-6-381-8

468

122

50.065.077.5

101512881504

42.057.069.0

81510881309

161036763734369

-382-4-382-6-382-8

468

122

50.065.077.5

117014821728

42.057.069.0

93512471493

181251576775229

-383-4-383-6-383-8

468

122

50.065.077.5

135917011971

42.057.069.0

104013821652

2016414100726864

-384-4-384-6-384-8

468

122

51.566.579.0

162120162338

42.057.069.0

119515901912

2419300118408057

-386-4-386-6-386-8

468

122

51.566.579.0

194024082716

42.057.069.0

136318312159

1 2 3 4 5 6 7 8 9

NominalSize

(NPS)

AxialSpring

Rate (1)(lb/in)

Part Number3501PB3502PB

AxialCompr.(inches)

AxialExt.


(inches)Weight(lbs)


Weight(lbs)

3501PB 3502PB

Note:(1) Force (lbs.) per inch of compression (pipe expansion) resulting from bellows spring constant. (2) Refer to Table 4 on Page 7 for housing outside diameter and drain port size.(3) Refer to Applications on page 4 for correct installation.(4) The anchor force is calculated as follows:

Anchor Force (lbs.) = Spring Rate (lb./in.) x Axial Travel Column 2 Tables 9 & 10 (inches)

Table 10 Type 3501PB & 3502PBDesign Pressure: 300 psig Test Pressure: 450 psig Design Temperature: 500°F

}} } }

Installation ProcedureApplication: Series 3500 Externally Pressurized ExpansionJoints are designed for applications where the principalmotion is axial to the centerline of the expansion joint, andthe system includes guides, supports and anchors sufficientto restrain the piping at the service and test conditions. Steamsystems must include adequate traps to remove condensate.Liquid systems must include surge compensation.

Operating Conditions: Series 3500 expansion joints aresupplied with a tag attached stating the Part Number andDesign Pressure. Standard designs are 150 psig and 300 psig,and the test pressures are 225 psig and 450 psig respectively.The design temperature for all standard joints is 500°F.Be certain that the system conditions and test conditionsdo not exceed the design values.

Movement: The axial travel of the joint is included in the partnumber as the last digit(s) i.e. P/N 3501-148-4 is designedfor 4" axial travel (compression). Consult the purchasespecification to confirm the correct part number and locationin the system. Refer to Travel Required on Page 5 for themethod of calculating pipe expansion or contraction.

Flow Direction and Orientation: The flow direction can beeither direction for Series 3500 expansion joints. Be certainthat the free end is attached to the pipe that expands onsingle joints (3501AB & 3502AB) with an anchor base. Thedrain port must be at the bottom of the joint for horizontaland vertical installations.

Media & Environment: Series 3500 expansion joints aredesigned for properly maintained steam, hot water andchilled water systems. They can be used for other media thatare compatible with the materials of construction. Refer toMaterial Specifications on Page 7 for the materials used forstandard construction. Be certain that the exterior of theexpansion joint is not exposed to corrosive substances suchas minerals in ground water and road salt.

Guides, Supports, Anchors: Series 3500 expansion jointsare designed for applications where the principal movementis axial to the centerline of the expansion joint, and the systemincludes guides, supports and anchors. Refer to Applicationson Pages 3 and 4 for system requirements. Refer to HyspanSeries 9500 Catalog 1004 for pipe guide design information.

Anchor Base: Type 3505 and 3506 dual expansion jointsinclude an intermediate anchor base to ensure that thebellows element on each side of the base absorbs themotion on one side. Refer to intermediate anchor forces inthe Anchor Forces section on Page 5 for force required.

Single expansion joints, types 3501 and 3502, are availablewith an anchor base designed as a main anchor. Refer tomain anchor forces in the Anchor Forces section on page 5for force required. The anchor base height and base patternfor both configurations are given in Table 4, page 7.CAUTION: The structure attached to the anchor base mustbe capable of restraining the thrust forces and momentsdeveloped by the expansion joint.

Shipping Restraints: External restraints are installed at thefactory to insure installation at the correct length andalignment. They are painted yellow and labeled—ShippingBars, Remove after Installation. Leave these restraintsinstalled until after the installation of the expansion joint iscomplete—but they must be removed prior to pressuretesting. CAUTION: Shipping Bars are not designed to reactthe pressure thrust of the expansion joint—they must beremoved prior to testing. Normally the shipping restraintsare installed by welding—remove by cutting and grindingwelds flush.

Standard expansion joints are factory set for the traveltabulated in this catalog. The principal travel is axialcompression (pipe expansion) with allowance for extensionif the pipe temperature is reduced below the installationtemperature. Refer to the purchase specifications for jointsordered with special settings.

Post Installation Inspection

1. Inspect the expansion joint for damage. 2. Are the Shipping Restraints removed? 3. Is the joint free to move and is the pipe supported and

guided to ensure that the pipe motion is axial to theexpansion joint?

4. Is the expansion joint installed at the correct locationand are the anchors, guides and supports installed inaccordance with the system design?

5. Are the guides and supports free to allow the movementof the expansion joint?

6. Is the supporting structure for the anchor adequate toreact the forces and moments?

Installation Preset

Series 3500 expansion joints can be ordered from the factorywith factory preset; however, if it is necessary to change thetravel during installation, the shipping bars must be removedand the length adjusted. The following table is a tabulation ofthe thermal expansion or contraction for various pipe runlengths corresponding to temperature differences from 70° F.


15Series 3500

FIVE YEAR LIMITED WARRANTY

This warranty is given by HYSPAN PRECISION PRODUCTS, INC. (“HYSPAN”) for the benefit of the first purchasers for use of its Series3500 Externally Pressurized Expansion Joints manufactured by HYSPAN to standard catalog construction or standard construction withlaminated Alloy 625 bellows. The product is warranted to be free from defects in material and workmanship for a period of five (5) yearsfrom the date of shipment by HYSPAN in accordance with the following conditions:

1. The design pressure and temperature are not exceeded—including surge and upset conditions.2. The installation conforms to HYSPAN installation instructions and approved practice for anchoring, supporting and guiding, and

generally accepted good piping practice.3. Substances in contact with all internal and external surfaces must be compatible with the materials of construction, including all

contaminates. Steam, condensate, and water containing more than 100 parts per million chlorides, are specifically excluded whenstainless bellows are used; Alloy 625 bellows construction qualifies.

4. The warranty shall be limited to the replacement by HYSPAN of the same model Series 3500 expansion joint, and payment fortransportation by the least expensive method. Labor, material and other costs related to the failure or replacement of the expansionjoint are not included. HYSPAN shall not be liable for damage or delay suffered by the purchaser regardless of whether such damagesare general, special or consequential in nature, whether caused by defective material or workmanship, or whether causedby HYSPAN’s negligence regardless of the degree.

5. The warranty is put in force by receipt at the factory of a completed and executed Warranty Card, which is provided with eachexpansion joint.

6. The warranty is limited to installations in the United States, Puerto Rico and Canada.The purchaser shall advise the HYSPAN factory of any warranty claim, including the nature of the failure and the serial number of theexpansion joint (permanently located adjacent to the lifting lug). HYSPAN shall provide return goods authorization and shipping directionsto return the failed joint to the factory. A mutually agreeable delivery schedule and method of shipping the replacement shall be established.The purchaser shall furnish a confirming purchase order and is obligated to the current replacement cost of the joint and shippingexpense. Upon receipt of the failed product, the cause of failure shall be determined by the factory at no expense to the purchaser. A creditshall be issued by the factory for the replacement cost and least expensive shipping for valid warranty claims. In the event of a dispute,HYSPAN shall furnish the failed product to the purchaser or their representative for failure analysis.

For example, if the expansion joint is used as a replacementin a system that has not cooled down, and the pipe

temperature is 170°F over a 200 foot run, the joint must becompressed 1.53".

Temperature Distance Between Anchors – FeetDifference

°F 50 100 150 200 250 30020 0.08 0.15 0.23 0.31 0.38 0.4630 0.11 0.23 0.34 0.46 0.57 0.6940 0.15 0.31 0.46 0.61 0.76 0.9250 0.19 0.68 0.57 0.76 0.95 1.1560 0.23 0.46 0.69 0.92 1.15 1.3770 0.27 0.53 0.80 1.07 1.34 1.6080 0.31 0.61 0.92 1.22 1.53 1.8390 0.34 0.69 1.03 1.37 1.72 2.06100 0.38 0.76 1.15 1.53 1.91 2.29110 0.42 0.84 1.26 1.68 2.10 2.52120 0.46 0.92 1.37 1.83 2.29 2.75140 0.53 1.07 1.60 2.14 2.67 3.20160 0.61 1.22 1.83 2.44 3.05 3.66180 0.69 1.37 2.06 2.75 3.43 4.12200 0.76 1.53 2.29 3.05 3.82 4.57

1 2 3 4 5 6 7

Field preset is not recommended unless it cannot be avoided.Note that there must be a significant temperature differenceto warrant presetting during installation. If presetting is

anticipated, Series 3500 expansion joints can be orderedwith threaded adjusting rods factory installed to facilitatepresetting.

Table 11 Installation Preset

Hyspan Precision Products, Inc. Tel: (619) 421-13551685 Brandywine Avenue Fax: (619) 421-1702Chula Vista, CA 91911 www.hyspan.com

Documents

Hy Span 3500 Brochure