Our range of automatic bypass valves is particularly beneficial in improving boiler efficiency and improving control of systems fitted with TRVs, through effective control of water flow.

Our range of valves save energy by only allowing flow through the bypass when needed.

Building Regulations state that if a bypass is installed, an automatic bypass valve must be fitted.

The DU144 Automatic Bypass Valve controls the flow of water through a bypass circuit which is installed between flow and return pipework, typically at or near the boiler. Building Regulations advice states that if a bypass is installed, an automatic bypass valve must be fitted.   The DU144 saves energy by only...
The DU145 Automatic Bypass Valve controls flow of water through a bypass circuit which is installed between flow and return pipework, typically at or near the boiler. Building Regulation advice states that if a bypass is installed, an Automatic Bypass Valve must be fitted.   The DU145 saves energy by only...
The DU146 Automatic Bypass Valve controls flow of water through a bypass circuit which is typically installed between flow and return pipework on a large system or branch of a district heating system. Building Regulation advice states that if a bypass is installed, an Automatic Bypass Valve must be...