... thread, tubing thread, butt-weld; 2)sour service models to NACE MR-01-75 The API oil ... cwp;1500 psi test; Connections Type: pipeline thread, tubing thread, butt-weld; Component Parts: Nut, Male ... -75. Recommended service Manifold and line connections, pump suction, and mud service. Features 2-1/ ... cwp;22500 psi test; Connections Type: pipeline thread, tubing thread, butt-weld; Component Parts: Nut, Male ...