... pipe Size:1, 2, 3, 4; Pressure Rating:6000psi cwp;9000 psi test; Connections Type: pipeline thread, tubing thread, butt-weld ... Nominal pipe Size:2, 3, 4; Pressure Rating: 15000psi cwp;22500 psi test; Connections Type: pipeline thread, tubing thread, butt- ... Hammer Union Nominal pipe Size:2, 3; Pressure Rating: 20000psi cold working pressure; Connections Type: butt-weld; Component Parts: Detachable Nut, ...