Check Valve Series

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Flange Swing Low Temperature Check Valve

manufacturer: Shanghai Fengqi Industry Development Co., Ltd.
Eml: sales@fengqi.sh.cn

Tel: 86 (21) 3652 8716
Mob: (86) 138 1635 6498

product drawing

Flange swing low temperature check valves
Flange swing low temperature check valves

Dimensions & constructral diagram

Flange swing low temperature check valve constructral diagram
Flange swing low temperature check valve constructral diagram

Implement standard

item design and manufacture face to face dimension flange standard inspection and test
standard API 600 ANSI B16.10 ANSI B16.5 API 598

The materials of main parts

part name body,bonnet, disc,stem pin,nut double-head nut sealing surface packing
materials A352-LCB、A352-LC3、A351-CF8 A182-F304 Cr-Mo steel cobalt-based alloy PTFE

Main performance and specifications

type nominal pressure PN(Lb) normal temperature test pressure low temperature test pressure(MPa) working temperature and applicable medium
shell sealing
DH44Y-150(Lb) 150 3.0 0.6 0.6 -46℃,Ammonia, liquid nitrogen, propane -101℃ ethylene, carbon dioxide -196℃ methane, liquefied natural gas
DH44Y-300(Lb) 300 7.5 0.6 0.6
DH44Y-600(Lb) 600 15.0 0.6 0.6

Main external and connection dimensions

\nominal diameter NPS in 11/2 2 21/2 3 4 6 8 10 12 14
mm 40 50 65 80 100 150 200 250 300 350
DH44Y-150Lb
L 165 203 216 241 292 356 495 622 698 787
H 154 175 177 191 222 325 383 448 540 560
Kg 14 18 22 30 46 82 116 158 238  
DH44Y-300Lb
L 241 267 292 318 356 445 533 622 711  
H 172 198 204 222 277 346 412 465 562  
Kg 18 26 34 45 64 105 167 272 375
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