Honeywell Dual Auto By-Pass Valve 22mm Straight

The Honeywell DU144 automatic bypass valve controls water flow in the heating circuit according to the water pressure across it and is used to maintain a minimum flow rate through the boiler and to limit circulation pressure when other water paths are closed.

• Valve housing with compression fittings for 22mm copper tube on inlet and outlet
• Spindle and plug assembly
• Bonnet with differential pressure setpoint marking
• Handwheel to pre-set differential pressure
• Protection cap
• Available in Straight or Angled Option