Gruvlok Concentric Reducers are available through 12" nominal pipe size. Use the Fitting Size Table to convert nominal pipe size to corresponding pipe O.D.
These fittings are designed to provide minimum pressure drop and uniform strength.
Depending on size and style, reducers are ductile iron conforming to ASTM A-536 or carbon steel with Schedule 40 or Standard Wall.
Pressure ratings of Gruvlok standard fittings conform to those of Fig. 7001 Gruvlok coupling.