HV30 Aladdin Self Bleeding Automatic Radiator Valve 1/2" BSP Single Valve

Product Information

By having air in your system, your heating system has to work much harder to achieve the desired temperature, resulting in higher energy consumption and increased bills. The bleed valves on your radiator allow you to release built-up air to help make your heating more efficient.

It never ceases to amaze me when people say, "Oh, the system loses pressure (on a sealed system), but our plumbers showed me how to top it up. Studies show that when our homes drop in temperature, we tend to turn up the thermostat, making the boiler work harder, costing us more in energy bills. For various reasons, hot water heating systems can accumulate pockets of air in the top of the radiators. A leaking valve commonly shows a dribble of water from the air vent, or stains of rust or limescale.Middle knob fully screwed in - automatic venting (it will shut off automaticaly when there is no more air in the radiator). Love it, the plumbers have been in to give their view, but not to answer the question like the first replier did.

This process is repeated every time air enters the radiator, ensuring that your system is continuously venting out trapped air. The valves are normally installed with the first installation of a system, then remain in place for the life of the system.

For more information about the specific processing based on your consent and on how QVC uses cookies and other similar technologies, please see " Cookie Policy ". For that reason most people have to "bleed" the radiators regularly: open a little valve in the top of each radiator and let the air out. Construction is of the usual cast brass housing for plumbing parts, with a threaded connection to the pipework at the base. Turning knob to vent on Watts FV-4 auto vents is easy RV-4 is also an anti suction device so when system water is drained for service it lets air in. However, for very detailed technical information, contacting the manufacturer may sometimes be a better option.