Ductile Iron conforming to ASTM A536 Grade 65-45-12), Bolts conforming to ASTM A183 and Nuts conforming to ASTM A194.
·Rigid Coupling provides rigid joints to prevent liner movement of pipe assembly. With a unique ends locked design, this coupling can be used when the application or design calls for rigid installation.
· Rigid Coupling provides rigidity for valve connections, machinery rooms, fire mains and long straight runs.Performance data showed below is based on use with standard wall, carbon steel pipe.
Red color/ Galvanized finish/ White color/ Blue colorGrooved fittings brands