Potterton Auto Air Vent (Aav)
The automatic air vent is a pressure safety device in the central heating unit. They work by using a floatation device to release accumulated 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 is full of water, the float will be pushed to the top and the vent will be closed until the water level drops.
POTTERTON 5122330 AUTOMATIC AIR VENT
Part No: 1121970 / MPN: 5122330
POTTERTON 541848 AIR VENT
Part No: 1123866 / MPN: 541848
POTTERTON 10/18728 AIR BLEED VALVE.
Part No: 1120068 / MPN: 10/18728
POTTERTON 5142120 AAV AUTO AIR VENT
Part No: 1128613 / MPN: 5142120
POTTERTON 5140181 AIR VENT
Part No: 1127923 / MPN: 5140181
POTTERTON 986311 CUFF FOR AIR VENT
Part No: 1125199 / MPN: 986311
POTTERTON 430054 AUTO AIR VENT
Part No: 1122983 / MPN: 430054
POTTERTON 430000 AUTO AIR VENT 1/2"
Part No: 1122949 / MPN: 430000