Ford / Uni-FlangeŽ pipe restraints provide a fast, economical method of restraining water main fittings, valves and hydrants. Available for PVC and Ductile pipe, Ford / Uni-FlangeŽ restraints guarantee joint restraint, in every soil condition, every time. Eliminate the need for expensive, time-consuming concrete thrust blocks and specify Ford / Uni-FlangeŽ pipe restraints.