Morrison 446 emergency shut-off valve 
3/4 inch NPT(F) ports 
Normally open valve
Shuts off liquid flow in the event of a fire or excessive temperatures
Normally installed in the fuel line from storage tank to fuel burning equipment
Used with back-up generators, boilers and other flammable liquid burning appliances
74 degrees C (165 degrees F) fusible link activates spring closure
Compact size reduces operational footprint requirement
Easy to install and maintain
Operating pressure rated at 3.4 bar (50 psi)
Operating temperature range rated at -29 to 52 degrees C (-20 to 125 degrees F)
Materials:
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: 74 degrees C (165 degrees F)
Oring and disc: Viton
Code of Compliance:
cULus listed to ULC/ORD-C842 – Valves for Flammable and Combustible Liquids