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The DU145 Automatic Bypass Valve is suitable for all heating systems up to 6 bar static pressure where a boiler bypass isrequired or radiator thermostats are fitted.The DU145 provides a simple method of ensuring adequate flow through boilers which require a bypass as well as reducingsystem noise.
In systems fitted with radiator thermostats, the DU145 Automatic Bypass Valve opens automatically as the TRVs or zone valves close down and the resistance of the system starts to exceed the preset pressure limit.
Automatic bypass valves are particularly beneficial in improving efficiency by bypassing the system when necessary and alsoimproving control of the system fitted with TRVs by ensuring a constant differential pressure across the radiator.
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