Fisher C471, C477 and C486 Internal Valve

Fisher™ Types C486 Series Internal Valves

C486 Series Internal Valve is designed to shutoff remotely or automatically when flow exceeds valves rated capacity or if the valve is sheared off due to an impact. It is use in bobtails, transport trucks and large stationary tanks. The inlet flange eliminates the need for additional connections and allows to quickly bolt to existing installations.

FeaturesPatented rapid equalization bleed areaUnique Serviceability FeaturesExcess Flow ClosureBack Check FeatureSpring loaded polytetrafluoroethylene (PTFE) stub shaft packingPTFE wear pads Rulon® Bushings at critical wear pointsManual, Cable, or Air Open/Close valve actuatorsThermal Fusible links or plugs melt at 212 to 220°F / 100 to 104°C and allow valve closure in the event of a fire at the valveSpecificationsBody Sizes and End Connection Styles (inlet x outlet)Inlet: 3-inch CL300 RF Flange / DN80
Outlet: 3-inch FNPT / DN80Maximum Allowable Inlet Pressure400 psig / 27.6 bar WOGTemperature Capabilities-20 to 150°F / -29 to 66°CApproximate Weights20 Pounds / 9.1 kg