Flow Control Valve, Straight-Angle, Screwed 3 Ends, Working Pressure: 125psig, Max Operating Temp: 250°F Size: 1"

Armstrong Flo-Control ValvesDesigned to prevent gravity circulation in a Hydronic System when the circulating pump is not runningWhen the pump starts, the Flo-Control Valve opens automatically to permit circulation of water in the heating systemIf gravity flow is required, for any reason . . . such as electric power failure . . . the valve may be opened manuallyArmstrong Flo-Control Valves are an essential part of a hot water heating system when domestic water is heated from an indirect heater in the boilerIn summer, when no heat is required and the heating pump is not running, the Flo-Control Valve prevents gravity flow in the systemIn addition to permitting year-round use of the indirect water heater, Armstrong Flo-Control Valves, in conjunction with the room thermostat and circulating pump, help to regulate building temperatures when the heating system is in operation