Threaded Pipe Coupling 1:Wherever needed. 2:Small torque of ... life and easy interall. 4:ISO9001:2000. Forged Steel Threaded Pipe CouplingSize:1/2"-60" or DN15-DN2000Pressure:1500-2500LB ... shape of Elbow,tee,Union,cross,Coupling,Cap,Bush,Plug,Swage nipple,Welding Boss,Hexagon nipple,Weldolets,Sockolets,Threadolets, nipple ... , the above parameters for reference only. Forged Steel Threaded Pipe Coupling