API6D Piston Check Valve Bolt Cover, Piston Disc Spring Loading Disc. Relief Port in the Disc Horizontal Service Size: 2"-24" Pressure: 150LB-2500LB Connection: RF, RTJ, BW
Low Temperature Design Impact Testing per Heat No. X-Ray Radiographic Inspection Expanded Stem Size:1/2"~42" Class:150#~2500# Material: CF8/CF8M,LCC/LCB