Comprehensive Solution For Steam And Heat System!

Din Standard Bellows Seal Gate Valve

Application
Steam, thermal oil, rank poison and strong corrupt gas and liquid medium.

Advantage
1.Bellow seal element. The key part of bellow sealed globe valves is mental bellow. It is the connection between cover and stem with automatic roll welding. The mental bellow can keep the stem part no leakage.
2.Double seal design(bellows+packing). Bellow and packing can protect against leakage and provide a excellent seal.
3. Grease nipple. It can direct lubricate the stem, nut and sleeve.
4. Ergonomic hand wheel. It provide longer service life and easier operation.

Technical specification
Design standard: DIN 3352
Face to face dimension: DIN 3202
Flanged ends: DIN 2543-2545
Test & inspection: DIN 3230

Main part materials

O.

Part name

Material

1

Body

GS-C25、1.4301、1.4401

2

Disc

GS-C25+1.4201/1.4301

3

Seat

1.4301、Stellite

4

Stem

1.4021、1.4301、1.4401

5

Bellows

1.4301、1.4401

6

Double-headed bolt

ASTM 193-B7、A193-B8

7

Nut

ASTM 194-2H、A194-8

8

Metal gasket

Asbestos+ Stainless steel

9

Nut

ASTM 194-2H、A194-8

10

Middle yoke

GS-C25、1.4301、1.4401

11

Double-headed bolt

ASTM 193-B7、A193-B8

12

Nut

ASTM 194-2H、A194-8

13

Gasket

Flexible graphite+ stainless steel

14

Cover

GS-C25、1.4301、1.4401

15

Nut

ASTM 194-2H、A194-8

16

Packing

Flexible graphite

17

Gland

GS-C25、1.4301

18

Nut

ASTM 194-2H、A194-8

19

Jack bolt

ASTM 193-B7、A193-B8

20

Stem nut

Copper alloy、D2、BL2

21

Oil cup

Assemble

22

Cap

1C45、1.4301、1.4401

23

Hand wheel

Carbon steel




Nominal Pressure

PN


Test Pressure

Strength test

1.5PN

MPa

Sealing test

1.1PN

Gas seal test

0.6

--

--

Suitable temp

-196℃~600℃


PN 16

DN

Main connection size

L

D

D1

D2

b

f

H

n-Φd

40

240

150

110

88

18

3

473

4-Φ18

50

250

165

125

102

20

3

524

4-Φ18

65

270

185

145

122

20

3

567

4-Φ18

80

280

200

160

138

20

3

655

8-Φ18

100

300

220

180

158

20

3

833

8-Φ18

125

325

250

210

188

22

3

908

8-Φ18

150

350

285

240

212

22

3

1006

8-Φ22

200

400

340

295

268

24

3

1423

12-Φ22

250

450

405

355

320

26

3

1708

12-Φ26

300

500

460

410

378

28

4

2117

12-Φ26

350

550

520

470

438

30

4

2400

16-Φ26

400

600

580

525

490

32

4

2707

16-Φ30

450

650

640

585

548

34

4

2834.5

20-Φ30

500

700

715

650

610

36

4

3169

20-Φ33

600

800

840

770

725

40

5

4053

20-Φ36

PN 25

40

240

150

110

88

18

3

473

4-Φ18

50

250

165

125

102

20

3

524

4-Φ18

65

270

185

145

122

22

3

567

8-Φ18

80

280

200

160

138

24

3

655

8-Φ18

100

300

235

190

162

24

3

833

8-Φ22

125

325

270

220

188

26

3

908

8-Φ26

150

350

300

250

218

28

3

1006

8-Φ26

200

400

360

310

278

30

3

1423

12-Φ26

250

450

425

370

335

32

3

1708

12-Φ30

300

500

485

430

395

34

4

2117

16-Φ30

350

550

555

490

450

38

4

2400

16-Φ33

400

600

620

550

505

40

4

2707

16-Φ36

450

650

670

600

548

42

4

2834.5

20-Φ36

500

700

730

660

566

44

4

3169

20-Φ36

600

800

845

770

670

46

5

4053

20-Φ39

PN 40

40

240

150

110

88

18

3

473

4-Φ18

50

250

165

125

102

20

3

524

4-Φ18

65

270

185

145

122

22

3

567

8-Φ18

80

280

200

160

138

24

3

655

8-Φ18

100

300

235

190

162

24

3

833

8-Φ22

125

325

270

220

188

26

3

908

8-Φ26

150

350

300

250

218

28

3

1006

8-Φ26

200

400

375

320

285

34

3

1423

12-Φ30

250

450

450

385

345

38

3

1708

12-Φ33

300

500

515

450

410

42

4

2117

16-Φ33

350

550

580

510

465

46

4

2400

16-Φ36

400

600

660

585

535

50

4

2707

16-Φ39

450

650

685

610

560

50

4

2834.5

20-Φ39

500

700

755

670

615

52

4

3169

20-Φ42

600

800

890

795

735

60

5

4053

20-Φ48


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