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Cast Steel Cryogenic Globe Valves

Extended bonnets with sufficient gas column length, usually specified by customer, are supplied for all valves to keep stem packing at sufficient distance away from the cold fluid to remain functional.
Flexible wedges with CoCr alloy seating faces for cryogenic service.
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Features and benefits

All basic design features of Diantai cast steel globe valves are adapted to special service conditions at cryogenic temperatures.

ADDITIONAL DESIGN FEATURES:
● Extended bonnets with sufficient gas column length, usually specified by customer, are supplied for all valves to keep stem packing at sufficient distance away from the cold fluid to remain functional.
● Flexible wedges with CoCr alloy seating faces for cryogenic service.
● Neoflon inserts are available for globe discs.
● Cleaning: All cryogenic valves are thoroughly degreased and cleaned and pipe ends are sealed to prevent contamination. 


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Cryogenic Globe Valve 800Lb         Standard Material Specifications


NO.

Part Name

AS to ASTM

SS to ASTM

Type A350 LF2

Type A350 LF3

Type A182 F304

Type A182 F316(L)

1

Body

A350 LF2

A350 LF3

A182 F304(L)

A182 F316(L)

2

Disc

A276 410

A276 304(L)

A276 304(L)

A276 316(L)

3

Bonnet

A350 LF2

A350 LF3

A182 F304(L)

A182 F316(L)

4

Gasket

Corrugated SS + graphite

SS + PTFE

5

Bold Nut

A193 B7

A193 B7

A193 B8

A193 B8M

6

Stem

A182 F6

A182 F6

A182 F304(L)

A182 F316(L)

7

Stem Packing

Flexible graphite

PTFE

8

Gland

A276 420

A182 F304

9

Pin

A276 420

A182 F304

10

Gland Eyebolt

A193 B7

A193 B16

A193 B8

A193 B8M

11

Gland Flange

A216 WCB

A351 CF8

12

Gland Nut

A194 2H

A194 4

A194 8

A194 8M

13

Yoke Nut

A276 410

14

Hand wheel

A197

15

Nameplate

SS

16

H.W. Nut

A194 2H

A194 4

A194 8

A194 8M

Suitable Temperature

 40 

 101 

 196 

Note: Other materials are available upon  request.


Dimensions (mm) and Weights (Kg)



      

NPS

3/8

1/2

3/4

1

1-1/4

1-1/2

2

L

79

92

111

120

120

172

200

H(OPEN)

333

337

370

480

410

474

546

W

100

100

125

160

160

180

200

Weights

Bolted

5.2

7.2

10.9

13.5

15.2

19.8

29.0

Welded

4.8

6.5

9.5

11.5

13.1

17.5

26.8



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