Cryogenic valves is designed in two different bonnet type. One is bolted bonnet, which the valve body and the bonnet are connected with a bolt nut, wound gasket (316 clamp flexible graphite manufacturing). Metal ring connections are also available upon special requirements. Another type is welded bonnet, which the valve body and the bonnet is threaded connected.
Pressure : PN1.6~2.5Mpa
Main Material: LCB、LF1、 LF3、LC3、 CF8、 F304 ect.
Suitable Temperature: -45°C~ 196°C
Design: JB/T 7749-95
Face to face : GB/T 12221-1989
Test: JB/T 9092-1999