The 446 normally open valve is designed to shut off liquid flow in the event of a fire or excessive temperatures. This emergency shut-off valve is installed in the fuel line from a storage tank to fuel burning equipment; such as back-up generators, boilers, and other flammable liquid burning appliances. Features cULus listed to ULC/ORD-C842 ? Valves for Flammable and Combustible Liquids (See details below in Code Compliance) 165°F (73°C) fusible link activates spring closure 3/4? (19.05 mm) or 1? (25.4 mm) female NPT threaded connections Compact size reduces operational footprint requirement Easy to install and maintain Specifications Operating pressure rated at 50 psi (433.7 kPa) Operating temperature range rated at -20°F (-28°C) to 125°F (51°C) Body: 316 stainless steel Cap, shaft, tail fitting, poppet, and nut: 303 stainless steel Lever arm: 304 stainless steel Handle: 356-T6 aluminum Spring: 17-7 stainless Fuse link: 165°F (73°C) O-ring and disc: Viton® Downloads Installation & Maintenance Instructions (PDF Download)
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