Worcester Oil Boiler Auto Air Vent (Aav)
The automatic air vent is a safety mechanism within the central heating unit. They work by using floatation to release built up air. As water circulates through the heating/cooling system, a float within the automatic air vent opens or closes depending on the water level. If the system contains only water, the float will be pushed to the top and the vent will be closed until the water level drops.
WORCESTER 87161405000 AIR-VENT AUTOMATIC 3/8 (SS KIT)
Part No: 1017365 / MPN: 87161405000
WORCESTER 87161402380 AIR VENT 1/8 BSP
Part No: 1017309 / MPN: 87161402380
WORCESTER 87161084970 3/8" AUTO AIR VENT
Part No: 1021253 / MPN: 87161084970
WORCESTER 87161045390 AIR VENT ELBOW
Part No: 1014271 / MPN: 87161045390
WORCESTER 87161045380 AIR VENT
Part No: 1014269 / MPN: 87161045380
WORC 87161113050 AUTOMATIC AIR VENT 3/8 - NOW USE 1030023
Part No: 1021610 / MPN: 87161113050
WORC 87161100100 AUTOMATIC AIR VENT - OBSOLETE
Part No: 1021444 / MPN: 87161100100