553542A - AutoFill Feed Valve 1/2" NPT (male in/female out)

Automatic Fast-filling: Fast fills the system to set pressure then automatically shuts off the water feed. No levers to flip or valves to close

Built-in shut-off valve and check valve: Allows isolation of system from supply and check valve prevents loss of system pressure if the supply water drops below system pressure

Maintains stable pressure at pre-setting: Fill the system to a set pressure and maintain that pressure setting regardless of inlet pressure variations

Pre-calibration: Before charging the system, use a screwdriver to turn dial to intended system pressure. Downstream pressure gauge is not required

Anti-scale polymer materials: Prevents scaling on internal sliding surfaces, assuring stable pressure control and long operating life