Grinnell Fire Butterfly Valve, Series: B480, 4 in Nominal, Grooved, -30 to 230 deg F, Lever Handle Actuator, 316 Stainless Steel Body, Stainless Steel Disc, 410 Stainless Steel (Stem)/Steel (Roll Pin) Stem & Pin Material, EPDM

The Grinnell® model B480 grooved end stainless steel butterfly valve with lever handle is a grooved-end stainless steel butterfly valve designed for 300 psi service, supplied with a 10-position locking lever handle. The end-to-end dimensions conform to MSS SP-67. The body is investment cast in grade CF8M (Type 316) to ASTM A743 with integral neck and ISO mounting top flange. The neck height allows for pipe insulation up to two in thick. The disc is a dual-seal type, encapsulated either with grade N in EPDM for cold water services or with grade T in nitrile for oil services.