The Honeywell Dual Automatic By-Pass Valve (22mm, Angled) is designed to regulate water flow within central heating systems by responding automatically to changes in water pressure. Installed within the heating circuit, the valve helps maintain a minimum flow rate through the boiler while limiting circulation pressure when other water pathways close, such as when radiator valves or zone valves shut. By automatically balancing pressure within the system, the valve helps improve overall heating performance while protecting key components. It also reduces system noise and ensures a steady and reliable flow through the boiler.

Reliable System Performance

The Honeywell Dual Automatic By-Pass Valve operates by adjusting flow based on the differential pressure across the valve, maintaining optimal system conditions even when multiple valves within the heating system close. This helps prevent pressure build-up and supports efficient, quiet system operation.

Key Features :

• Automatically controls water flow based on system pressure

• Maintains a minimum flow rate through the boiler

• Helps reduce system noise caused by pressure fluctuations

• Maintains consistent system pressure

• 22mm compression fittings for copper pipe inlet and outlet

• Durable valve housing with compression connections

• Spindle-and-plug assembly for precise flow control

• Bonnet with differential pressure setpoint markings

• Handwheel for easy differential pressure pre-setting

• Includes protective cap

• Available in angled or straight valve configurations

• 1-year manufacturer warranty