API stainless steel check valve 

Material: WCB, A105, CF8, CF8M, CF3, CF3M, F304, F304L, F316, F316L, WC6, WC9, F11, C5, LCB, LCC, etc. 

Standards: API, DIN, GB, JIS, BS, etc. 
Connection end: RF, RTJ, BW, SW, NPT 
Pressure: 150LB-2500LB, PN16-PN250, 10K-40K 
Size: 1/2"-36", DN15-DN900 
Packing: Plywood case 

With CE, watermark API, ISO CERT.