Bar-Wrapped Concrete Cylinder Pipe (B-303)
U.S. Pipe's Bar-Wrapped Pipe combines the physical strength of steel with the structural and protective properties of high strength cement mortar. A round, mild steel bar is helically wound around the steel cylinder and all surfaces are encased in cement mortar. This composite pipe reacts as a unit when resisting internal pressure and external loads.
The basis of design provides a safety factor comparable to other waterworks pipe materials for normal service conditions and surge or water hammer. The stress in the steel components at working pressure is limited to one half the yield strength of the steel.