HP LOK Restrained Joint Pipe and Fittings provide flexible push-on joints for 30″– 64″ pipe sizes. The HP LOK Restrained Joint has a working pressure equivalent to the working pressure rating of the parent pipe with a maximum working pressure rating of 350 psi.

HP LOK Submittal Information.

2006 Edition of Restrained Joints for Ductile Iron Pipe

HP LOK Field Cutting and Welding guide. Contact our Technical Resource Managers if you have any questions.