Potable Expansion Vessels
These cold expansion vessels provide potable water at a pre-defined pressure, regardless of boost pressure, in order to limit the pump insertions due to the pressurised air between the membrane and the internal surface of the tank. When the pressure increases,... the air cushion compresses and allows water to fill the tank. Mr Central Heating has a full range of expansion vessels in stock now.
ThermoWave White 2 L Potable Multifunction Expansion Vessel (1/2" Thread)