Honeywell Home 22mm Straight Automatic Bypass Valve DU144
The DU144 straight automatic bypass valve controls the water flow in the heating circuit, to maintain a minimum flow rate while the boiler is fired. The boiler return temperature is raised and this reduces the corrosion caused by flue gas condensation. In addition, when radiator valves are closed it also maintains flow over the temperature sensor on the boiler to ensure proper operation of external temperature compensating controls. On gas fired water heaters it guarantees a minimum flow circulation when thermostats or radiator valves are closed.
Main product features:
- Reduces system noise and maintains an even system pressure
- Settable differential pressure between 0.1 and 0.6 bar
- Supplied with compression fittings for 22mm copper pipe
- High flow rate capacity, up to 1.5m³ per hour
- Automatic By-pass valve
Description
The DU144 straight automatic bypass valve controls the water flow in the heating circuit, to maintain a minimum flow rate while the boiler is fired. The boiler return temperature is raised and this reduces the corrosion caused by flue gas condensation. In addition, when radiator valves are closed it also maintains flow over the temperature sensor on the boiler to ensure proper operation of external temperature compensating controls. On gas fired water heaters it guarantees a minimum flow circulation when thermostats or radiator valves are closed.
Main product features:
- Reduces system noise and maintains an even system pressure
- Settable differential pressure between 0.1 and 0.6 bar
- Supplied with compression fittings for 22mm copper pipe
- High flow rate capacity, up to 1.5m³ per hour
- Automatic By-pass valve
Specifications
0.28kg
60mm
80mm
Honeywell Home
Heating Controls
PRV & Auto By-pass Valves
Brass
DU144
Bypass Valve