The Halstead automatic air vent is a pressure safety device in the central heating unit. They work by using buoyancy to release built-up air. As water flows through the heating or cooling system, a float within the AAV (automatic air vent) opens or closes.
Fits a number of Halstead appliances
Designed for Finest Platinum Lpg, Finest Platinum Ng, Halstead Htg Wickes Combi 82, Halstead Htg Wickes Combi 102, Halstead Htg Ace Fr Ac1000000311 and Halstead Htg Ace High Fr Ac100000131
Technical specification
Waist Sizeab55cd57gsTypeAutomatic Air VentSupplier Part Number450908Brand NameHalstead