Forged Steel Lift Check Valve

Size rating: NPS1/2"~8"   
Pressure Rating: Class 150LB~2500LB 
Design STD: API, ANSI, JIS, DIN, JB.    
Face to Face STD: ANSIB16. 10, API6D 
Flange end ATD: ANSI B16. 5; JB79 
Butt weld end STD: ANSI B16. 11; JB/T1751 
Screw end STD: ANSI B1. 20. 1; JB/T7306 
socket weld end STD: ANSI B16. 11; JB/T1751 

Test STD: API598, GB/T13927, JB/T9092