2 Way Normally Closed, 4", Flange, 120Vac, 510 Cv 27,000 cfh 0-4 PSI Hydramotor Operated Gas Shutoff Valve with one SPDT Auxiliary Switch (20 second max open and 1 second max close)

2 Way Normally Closed, 4", Flange, 120Vac, 510 Cv 27,000 cfh 0-4 PSI Hydramotor Operated Gas Shutoff Valve with Proof of Closure Switch and one SPDT Auxiliary Switch (20 second max open and 1 second max close)

4"120vN/C PrfClHiFloGasVlv

4"120vN/C HiFloGasVlv,W/AuxSw.

2"120vNC Prf/ClHiFloGasValve