18 Litre Aquasystems ARB18 Potable Expansion Vessel 3 Bar with Integrated Bracket - XVES050055

Product Information

THE AQUASYSTEMS ARB POTABLE EXPANSION VESSELS ARE MANUFACTURED TO COMPLY WITH UK WATER REGULATIONS AND ARE TESTED AND CERTIFIED BY WRAS.

Due to the pressure from the pressurised air surrounding the membrane, water will start to exit the vessel until the membrane is deflated. All Aquasystem expansion vessels are supplied with a replaceable membrane, which separates the water and air, to prevent contamination of the water system, corrosion of the expansion vessel or pressure loss in the water system. Yep - standard reply for unvented - happy to pay a G3 plumber - want to be sure they don't fit the same kit and don't get overcharged. New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging .All versions supplied with a replaceable membrane meaning the vessel can be serviced without being removed. The main purpose of the vessel is to compensate for the increase in volume of water due to the varying water temperatures in the system, e. Definitely recommed the seller and of course the [[ASIN:B01BGZQVY6 ARB18 Expansion Vessel (Baxi Megaflow system) ]] if you are looking for one. The main purpose of an expansion vessel is to compensate for the increase in volume of water due to the varying water temperatures in hot water or heating systems. The instructions are quite difficult to read, the text us ridiculously small and also don't cover much.

Not just the static pressure but probably letting all the air out ( which can also contain water on the air side!Bar Reducing 6 Bar Relief Inlet Control Multibloc Valve one piece Reliance ARB24 - Aquasystem 24 Litre 3. Definitely recommed the seller and of course the ARB18 Expansion Vessel (Baxi Megaflow system) if you are looking for one. Finance is provided by PayPal Credit (a trading name of PayPal UK Ltd, Whittaker House, Whittaker Avenue, Richmond-Upon-Thames, Surrey, United Kingdom, TW9 1EH).