Honeywell Straight Automatic BY-PASS Valve 22mm 0.2 TO 0.6 BAR DU144A1001

This straight automatic by-pass valve is designed for use in domestic and light commercial heating systems with 22mm pipework. It helps control differential pressure within the system by diverting excess flow when necessary, maintaining effective circulation throughout the heating circuit.

The compact unit is typically installed between the flow and return pipework near the boiler or main pump. Its adjustable pressure setting offers flexibility for system balancing, supporting stable operation and reducing noise caused by pressure fluctuations.