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.
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.
