Gruvlok® Seal Ring, Series: FSR, 3 in Nominal, 3-1/2 in Outside Dia, 0.12 in Thickness, Carbon Steel, Galvanized, Domestic
The Gruvlok® flange adapter insert is designed for use with the Gruvlok® 7012 & 7013.The flange adapter is required when mating the Gruvlok® 7012 & 7013 to a rubber line valve or serrated face flange surface. The flange adapter ring is used in combination with a rubber lined valve or flange gasket to provide a smooth sealing surface for the 7012 & 7013 flange gasket.