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LNG cryogenic valve

Item:Parameter
DN/PN:PN:≤300LB,DN ≤8“ / PN:600LB,DN ≤3” / PN:1500LB,DN ≤1-1/2”
Connection:RF/SW/BW
Standard:ISO17292/BS6364
Temperature:-196℃~+85℃
Media:LNG、O2、N2、Ar  gas or liquid
Material:CF3M/CF3/CF8M/CF8(F316L/F304L/F316/F304)

 

The spring preloaded valve seat structure effectively solves the contradiction between sealing and torque; 
Holes are punched on the bracket to ensure the connection between the extended section and the middle cavity to avoid hidden risks; 
Punch holes at the upstream end of the sphere to ensure pressure relief in the middle cavity; 
Valve stem packing can adopt disc spring pre-tightening structure; 
The seal adopts PCTFE valve seat with excellent low temperature stability; 
The middle cavity pressure fastener adopts high-strength grade 2 studs to effectively control the pre-tightening force of the gasket; 
Stem seal adopts low-leakage packing to ensure that low-leakage requirements are met; 
100% radiographic inspection of all pressure-bearing welds. 

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产品描述

Item:Parameter
DN/PN:PN:≤300LB,DN ≤8“ / PN:600LB,DN ≤3” / PN:1500LB,DN ≤1-1/2”
Connection:RF/SW/BW
Standard:ISO17292/BS6364
Temperature:-196℃~+85℃
Media:LNG、O2、N2、Ar  gas or liquid
Material:CF3M/CF3/CF8M/CF8(F316L/F304L/F316/F304)

 

The spring preloaded valve seat structure effectively solves the contradiction between sealing and torque; 
Holes are punched on the bracket to ensure the connection between the extended section and the middle cavity to avoid hidden risks; 
Punch holes at the upstream end of the sphere to ensure pressure relief in the middle cavity; 
Valve stem packing can adopt disc spring pre-tightening structure; 
The seal adopts PCTFE valve seat with excellent low temperature stability; 
The middle cavity pressure fastener adopts high-strength grade 2 studs to effectively control the pre-tightening force of the gasket; 
Stem seal adopts low-leakage packing to ensure that low-leakage requirements are met; 
100% radiographic inspection of all pressure-bearing welds. 

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