Comprehensive Solution For Steam And Heat System!

Forged Steel Bellows Seal Globe Valve

Application
Petroleum, chemical industry, pharmacy, fertilizer, power industry 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.Benefit from the con and streamline shape design, the disc has a reliable seal and longer service life.
3.Double seal design(bellows+packing). Bellow and packing can protect against leakage and provide a excellent seal.
4.Grease nipple. It can direct lubricate the stem, nut and sleeve.
5.Ergonomic hand wheel. It provide longer service life and easier operation.

Technical specification
Design standard: DIN 3356
Face to face dimension: DIN 3202
Flanged ends: DIN 2543-2545
Test & inspection: DIN 3230

Performance specification

Nominal Pressure

PN

 

Test Pressure

Strength test

1.5PN

MPa

Sealing test

 1.1PN

Gas seal test

 0.6

--

 --

Suitable temp

-196℃~600℃




NO.

Part name

Material

1

Body

A105N、F304、F316

2

Seat

304、Stellite

3

Disc

2Cr13、F304、F316

4

Pin

S.S304、S.S316

5

Bellow assemble

S.S304、S.S316L

6

Stem

2Cr13、F304、F316

7

Gasket

Flexible graphite + stainless steel

8

Cover

A105N、F304、F316

9

Headed bolt

ASTM 193-B7、A193-B8

10

Packing

Flexible graphite

11

Gland

A105N、F304、F316

12

Jack bolt

ASTM 193-B7、A193-B8

13

Nut

ASTM 194-2H、A194-8

14

Stem nut

Copper alloy、D2

15

Hand wheel

Carbon steel

16

Cap

45#


PN 16

DN

Main connection size

L

D

D1

D2

b

f

H

n-Φd

15

130

95

65

45

16

2

210

4-Φ14

20

150

105

75

58

18

2

215

4-Φ14

25

160

115

85

68

18

2

220

4-Φ14

32

180

140

100

78

18

2

225

4-Φ18

40

200

150

110

88

18

3

250

4-Φ18

50

230

165

125

102

20

3

270

4-Φ18

PN 25

15

130

95

65

45

16

2

210

4-Φ14

20

150

105

75

58

18

2

215

4-Φ14

25

160

115

85

68

18

2

220

4-Φ14

32

180

140

100

78

18

2

225

4-Φ18

40

200

150

110

88

18

3

250

4-Φ18

50

230

165

125

102

20

3

270

4-Φ18

PN 40

15

130

95

65

45

16

2

210

4-Φ14

20

150

105

75

58

18

2

215

4-Φ14

25

160

115

85

68

18

2

220

4-Φ14

32

160

140

100

68

18

2

225

4-Φ18

40

180

150

110

78

18

3

250

4-Φ18

50

230

165

125

102

20

3

270

4-Φ18


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