IRI / FM Main Gas Control Train Components (5.5" W.C. Natural Gas Supply Pressure)

511-624-550 Low Gas Pressure Switch SPDT, Manual Reset, Lockout on Pressure Fill, Diaphragm Type, 3.0-21.0" W.C. Range, 1.0-3.0" W.C. Differential, ¼ “ N.P.T. Female Connector, ⅛" N.P.T. Female Vent Connector, With Switch Position Indicator

511-210-415 Test Cock, ¼" N.P.T.

511-624-555 High Gas Pressure Switch SPDT, Manual Reset, Lockout on Pressure Rise, Diaphragm Type, 3.0-21.0" W.C. Range, 1.0-3.0" W.C. Differential, ¼" N.P.T. Female Connector, ⅛" N.P.T. Female Vent Connector, With Switch Position Indicator