Fisher HSR-1-1.25-2.2 1" Gas Regulator 1.25-2.2 PSI 3/16" Orifice

The Fisher HSR-1-1.25-2.2 Gas Regulator is a fuel-pressure control part used to stabilize gas flow for combustion equipment. The 1" connection size defines inlet and outlet piping compatibility for integration into gas supply lines. The 1.252.2 PSI range indicates regulated outlet pressure control under varying inlet conditions. A 3/16" orifice regulates metered gas passage, ensuring consistent flow features before combustion. The internal diaphragm and spring assembly respond to downstream demand changes and maintains steady regulation. Mounted in gas distribution assemblies, it supports controlled burner operation, safe ignition behavior, and accurate thermal output.