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Double flanged expansion joint
Product Model: VSSJA-2(B2F)
Nominal diameter: DN65~DN3200
Nominal pressure: PN10
Operating temperature: 0°C~85°C
Seal test: 1.25PN
Shell test: 1.5PN
Suitable medium: water
Manufacturing standard: GB/T12465
Flange connection standard: GB/T9119
Structure length standard: GB/T12465
Test standard: GB/T12465
Product details

The main function of the double-flange expansion joint is to extend and compress within a certain range in the pipeline, compensate for the displacement caused by thermal expansion and cold contraction of the pipeline, and facilitate the installation, disassembly and maintenance of valves and water pumps. If the free expansion of the pipe exceeds the allowable expansion, the limit stud and nut prevent the nozzle from disconnecting. It is suitable for pipeline connection with vibration, slope or bend. This series of products are widely used in urban water supply and drainage, sewage treatment and other industries of fluid transmission pipeline.



Product characteristics

1, flexible, safe limit, reliable sealing, convenient loading and unloading structure is reasonable, simple and compact, reliable sealing performance;

2, not affected by space, can be installed in any position of the pipeline;

3. Absorption of pipeline axial displacement within the allowable range;

4, the connecting parts are made of stainless steel, the body is sprayed with epoxy resin, and the anti-corrosion effect is good.



Main contour connection dimensions


DN

DW

Overall dimension

Regulating quantity△

Flange connection size

0.6MPa

1.0MPa

1.6MPa

Dw

Do

L

L2

L1

D

K

n-Th

D

K

n-Th

D

K

n-Th

65

76

76

400

200

400

±20

160

130

4-M12

185

145

4-M16

185

145

4-M16

80

89

89

190

150

4-M16

200

160

4-M16

200

160

4-M16

100

114

114

210

170

220

180

220

180

-

125

140

140

240

200

4-M16

250

210

4-M20

250

210

-

150

168

168

265

225

285

240

285

240

4-M20

200

219

219

320

380

340

295

340

295

6-M20

250

273

273

375

335

6-M16

395

350

6-M20

405

355

6-M24

300

325

325

420

220

420

±25

440

395

6-M20

340

400

460

410

-

350

377

377

490

445

395

460

8-M20

520

470

16-M45

400

426

426

540

495

8-M20

445

515

8-M24

580

525

14-M39

450

480

480

595

550

505

565

10-M24

640

585

14-M36

500

530

530

440

240

440

645

600

10-M20

565

620

-

715

650

12-M36

600

630

630

755

705

10-M24

615

725

10-M27

840

770

12-M33

700

720

720

860

810

12-M24

670

840

12-M27

910

840

10-M33

800

820

820

600

350

600

±30

975

920

12-M27

780

950

12-M30

1025

950

10-M30

900

920

920

1075

1020

895

1050

14-M30

1125

1050

10-M27

1000

1020

1020

620

1175

1120

14-M27

1115

1160

14-M33

1255

1170

8-M27

1200

1220

1220

370

650

1405

1340

16-M30

1230

1380

16-M36

1485

1390

8-M24

1400

1420

1424

630

1630

1560

18-M33

1675

1590

18-M39

1685

1590

18-M45

1600

1620

1624

380

670

1830

1760

20-M33

1915

1820

20-M45

1930

1820

20-M52

1800

1820

1824

2045

1970

22-M36

2115

2020

22-M45

2130

2020

22-M52

2000

2020

2026

650

400

700

2265

2180

24-M39

2325

2230

24-M45

2345

2230

22-M56

2200

2220

2226

730

2478

2390

26-M39

2550

2440

26-M52

-

-

-

2400

2420

2426

2685

3600

28-M39

2760

2650

28-M52

-

-

-

2600

2620

2626

750

450

840

±40

2905

2810

30-M35

2960

2850

30-M52

-

-

-

2800

2820

2826

3115

3020

32-M45

3180

3070

32-M52

-

-

-

3000

3020

3026

3315

3220

34-M45

3290

3290

34-M56

-

-

-

3200

3220

3230

3525

3430

36-M45

-

-

-

-

-

-


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