8" Grooved Rigid Coupling – Ductile Iron, UL/FM Approved Grooved Fittings Gasket: EPDM rubber

Gasket: EPDM rubber

Fire suppression mains in commercial buildings

Material: Lead-Free Wrought Copper

and industrial applications

3) What’s included

8" Grooved Rigid Coupling – Ductile Iron, UL/FM Approved Grooved Fittings Gasket: EPDM rubber8" Grooved Rigid Coupling UL FM Approved for Large Scale Fire & Mechanical Piping The 8 inch Grooved Rigid Coupling is engineered for heavy duty applications where a fixed, no deflection connection is essential. Its designed for large fire suppression mains, mechanical risers, industrial water systems, and chilled water loops where alignment must remain locked under high pressure and load. This coupling is made from high strength ASTM A536 ductile