Betts flat seat style emergency valves combine Betts quality with an economical design. Valves feature aluminum construction with a specially designed seat disc to provide positive sealing. Shear section tested per TTMA RP84 and meets 49CFR178.345-8. Air operated valves are provided with an external air cylinder to help prevent gasoline or other products from contaminating the air supply. The air cylinder is hard-coated aluminum with a polished stainless steel shaft. Cylinders have 1/8” NPT port for air connection and are supplied with a fusible plug installed.
Specifications
- • Cable operated
- • Outlet: 4 in. Flange
- • Seals: Viton
- • Force rating from TTMA RP86: 15,500 lb. * Never bottom load through emergency valves without first opening valve. Failure to do so may result in damage to the tank and or valve.
Dimensions
- Dimensions
- • A: 4.38 in.
- • B: 5 in.
- Inlet Flange
- • B.C.: 7.25 in.
- • Holes: 8-9/16
- Outlet Flange
- • B.C.: 5.88 in.
- • Holes: 8-7/16
