The Worcester Bosch air vent is for use in the pump section of the Worcester Bosch Greenstar, RD Series, Novatherm and Greenstar ErP boiler ranges. A central heating safety device, the air vent releases built-up air. As water flows through the system, a float opens or closes the vent depending on the water level. When the system is full, the float is pushed to the top, closing the vent until the water level drops.
Fits on to the expansion vessel
Technical specification
Waist Sizeaa34cf94gzSupplier Part Number87185050140Brand NameWorcester Bosch