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DK941X WCB double flanged steam control vacuum butterfly valve

DK941X WCB double flanged steam control vacuum butterfly valve

DK941X WCB double flanged steam control vacuum butterfly valve
CategoriesButterfly valve
AlbumView larger image
BrandGARLOS
ModelDK941X/DK941F
Nominal Pressure0.25MPa
Shell Test Pressure0.4MPa
Seal Test Pressure0.275MPa
Vacuum Leakage≤6.67*10-2PaM3S-1
SealingEPDM
Update Time2019-07-21
Detail Information

Vacuum butterfly valve is applied in non-corrosive saturated steam low vacuum pipeline as a closed-circuit equipment. This series valve are sealed butterfly valve, the two shaft ends adopts 0.25MPa water sealing, to ensure no leakage at shaft ends. DK941x-2.5C/ DK941F-2.5C structure is two valve seats type, the distance between valves seats and shaft ends is sealed by rubber sealing combined with water sealing (Pressure is 0.25MPa)


Standard:

1 Design and manufacture: JB/T8527-97, GB/T12238-89

2 Face to face: GB12221-89

3 Flange connection: GB/T17241.6-98

4 Test: GB/T13927-92


Material and Range of application

Name

Material

Body, disc

Q235-A, F steel,WCB

Shaft, Seat

2Cr13, 1Cr18Ni9Ti

Disc sealing surface

EPDM, NBR

Suitable Medium

Non-corrosive saturated steam

Suitable Temperature

≤120

Vacuum Leakage

≤6.67×10-2PaM3S-1



Test

Nominal Pressure

0.25MPa

Test Pressure

Shell

0.4MPa

Seal

0.275MPa


DN

PN

L

D

D1

D2

n-Φd

b

f

A

B

H

1000

 

 

 

 

 

0.25MPa

305

1175

1120

1078

28-30

42

5

590

980

2230

1200

381

1375

1320

1280

32-30

44

5

590

980

2476

1400

381

1575

1520

1480

36-30

46

5

630

1117

2793

1600

457

1790

1730

1690

40-30

48

5

630

1117

2850

1800

457

1990

1930

1690

44-30

50

5

850

1480

3187

2000

540

2190

2130

2090

48-30

52

5

850

1480

3310

2200

590

2405

2345

2295

52-33

56

6

850

1554

3915

2400

650

2605

2540

2495

56-33

60

6

850

1554

4187

2600

700

2605

2740

2695

60-33

64

6

1533

1435

4409

2800

760

3030

2960

2910

64-36

66

6

1585

1837

4760

3000

810

3230

3160

3110

68-36

70

6

1585

1837

5008


 


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