Grinnell Fire Flange Adapter, Hinged, Series: No 71H, 4 in Nominal, Grooved, 4-1/2 in Flange Dia, 5/8 in Bolt Circle, 3 in L Bolt, 9 in Length, 0.94 in Thickness, 500 psi, -30 to 230 deg F, Ductile Iron, Non-Lead Paint, Orange
The GRINNELL Figure 71H Hinged Flange Adapter allows a direct transition from flanged components to GRINNELL grooved components. The two segments design comes with a pre-pressed ring at one of the mating ends which facilitates a hinged action. This allows for an easy and quick installation. The specially designed gasket enables the transition from a grooved system to a flanged system with a single flange adapter. The flange bolt patterns conform to ANSI Class 125 and 150.