FIG 446
Emergency Shut-Off Valve
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.
Product Features
Standard Features
cULus listed to ULC/ORD-C842 – Valves for Flammable and Combustible Liquids (See details below in Code Compliance)
165° F fusible link activates spring closure
1/2”, 3/4”, or 1” female NPT threaded connections
Compact size reduces operational footprint requirement
Easy to install and maintain
Optional Criteria
Operating pressure rated at 50 psi
Operating temperature range rated at -20° F to 125° F
Construction Details
- 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
- O-ring and disc: FKM
Code Compliance
cULus listed to ULC/ORD-C842
Product Ordering Instructions
| Fig | Suffix | Size | Weight |
| 446 | 0050 AV | 1/2” | 3.5 |
| 446 | 0075 AV | 3/4” | 3.5 |
| 446 | 0100 AV | 1” | 3.3 |