Gruvlok 390013514 Rigidlok Coupling 2 in Iron 750 psi

Rigidlok Coupling for Schedule 40 Pipe

The Gruvlok Rigidlok Coupling is a straight ductile-iron fitting painted for corrosion resistance and designed to join 2-inch grooved pipe. It suits installers building or maintaining rigid piping systems that require a secure mechanical connection. The coupling meets Class 150 specifications for standard industrial and commercial applications.

Pressure Limit at Elevated Temperature

The coupling carries a maximum operating pressure of 750 psi when the system fluid reaches 150 degrees Fahrenheit. At lower temperatures the same pressure rating applies, but designers must verify that the connected pipe and gaskets also meet the required class for the intended service conditions.

Headroom for Schedule 40 Systems

With a 750 psi rating the fitting provides ample headroom for typical Schedule 40 piping networks operating well below that threshold. It is not intended for systems that exceed the Class 150 pressure envelope or for pipe schedules with thinner walls that would reduce the allowable working pressure.