Comprehensive Solution For Steam And Heat System!

Ansi Standard Bellows Seal Gate Valve

Application
Hot oil system, steam system, hot and cold water system etc.

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: ASME B16.34
Face to face dimension: ASME B16.10
Flanged ends: ASME B16.5
Test & inspection: API 598

Performance specification

Nominal Pressure

PN

 

Test Pressure

Strength test

1.5PN

MPa

Sealing test

 1.1PN

Gas seal tes

 0.6

Bellows test

 1.1PN

Suitable temp

-196℃~600℃




NO.

Part name

Material

1

Body

WCB、CF8、CF8M

2

Seat

304、Stellite

3

Disc

WCB+13Cr、CF8、CF8M

4

Stem

13Cr、F304、F316

5

Bellows

S.S304、S.S316L

6

Screw nut

ASTM A194-2H、A194-8、A194-8M

7

Stud

ASTM A193-B7、A193-B8、A193-B8M

8

Nut

ASTM A194-2H、A194-8、A194-8M

9

Metal gasket

Stainless+ Flexible graphite

10

Yoke

WCB、CF8、CF8M

11

Nut

ASTM A194-2H、A194-8、A194-8M

12

Stud

ASTM A193-B7、A193-B8、A193-B8M

13

Nut

ASTM A194-2H、A194-8、A194-8M

14

Gasket

Stainless+ Flexible graphite

15

Seal bowl

S.S304、S.S316

16

Packing

Flexible graphite

17

Extremely heavy pin

1045、S.S304、S.S316

18

Extremely heavy bolt

ASTM A193-B7、A193-B8、A193-B8M

19

Extremely heavy nut

ASTM A194-2H、A194-8、A194-8M

20

Gland

WCB、CF8

21

Stem nut

Copper alloy、D2、BL-2

22

Bearing nut

1045、S.S304、S.S316

23

Hand wheel

60-40-18

24

Locknut

1045


Material

DN

Main connection size

150 LB

L

D

D1

D2

b

f


n-Φd

A105

1/2″

108

90

60.5

35

10

2


4-Φ16

3/4″

117

100

70

43

11

2


4-Φ16

1″

127

110

79.5

51

12

2


4-Φ16

1-1/4″

140

115

89

63.5

13

2


4-Φ16

1-1/2″

165

125

98.5

73

15

2


4-Φ16

A105 WCB

2″

178

150

120.5

92

16

2


4-Φ19

WCB

2-1/2″

190

180

139.5

105

18

2


4-Φ19

3″

203

190

152.5

127

20

2


4-Φ19

4″

229

230

190.5

157

24

2


8-Φ19

5″

254

255

216

186

24

2


8-Φ22

6″

267

280

241.5

216

26

2


8-Φ22

8″

292

345

298.5

270

29

2


8-Φ22

10″

330

405

362

324

31

2


12-Φ25

12″

356

485

432

381

32

2


12-Φ25

14″

381

535

476

413

35

2


12-Φ29

16″

406

595

540

470

37

2


16-Φ29

18″

432

635

578

533

40

2


12-Φ32

20″

457

700

625

584

43

2


20-Φ32

300 LB


1/2″

140

95

66.5

35

15

2


4-Φ16

3/4″

152

115

82.5

43

16

2


4-Φ19

1″

165

125

89

51

18

2


4-Φ19

1-1/4″

178

135

98.5

63.5

20

2


4-Φ19

1-1/2″

190

155

114.5

73

21

2


4-Φ22

A105 WCB

2″

216

165

127

92

23

2


8-Φ19

WCB

2-1/2″

241

190

149

105

26

2


8-Φ22

3″

282

210

168.5

127

29

2


8-Φ22

4″

305

255

200

157

32

2


8-Φ22










6″

403

320

270

216

37

2


12-Φ22

8″

502

380

330

270

42

2


12-Φ22

10″

568

445

387

324

48

2


16-Φ29

12″

648

520

451

381

51

2


16-Φ32

14″

762

585

514.5

413

54

2


20-Φ32

16″

838

650

571.5

470

58

2


20-Φ35

18″

914

710

628.5

533

61

2


24-Φ35

20″

991

775

686

584

64

2


24-Φ35

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