Expansion vessels are installed on sealed systems to allow for the 4% expansion in water as the system heats up and therefore protect from excessive pressure
How it works
The expansion vessel allows for the take of expansion of water within its membrane casing, as when water temperature increases the membrane inside the vessel inflates to allow the water to fill the vessel. The membrane will continue to expand until the system reaches its maximum temperature. Once this has been reached the membrane will be fully inflated and takes up the capacity of the vessel shell. Gradually the temperature will drop, which will in turn decrease the volume of water. Due to the pressure from the pressurised air surrounding the membrane, water will start to exit the vessel until the membrane is deflated.
Body: Cold Pressed Carbon Steel
Water Connection: Steel
Membrane: Synthetic Butyl Rubber
The expansion vessel is ideally sited either on the return leg of a central heating circuit,
although installation on the flow is also possible if sited on the suction side of the system
Sealed System Kit for expansion vessels
Supplied with Filling Loop, double check valve and isolating ball valve assembly, isolation valve and safety relief valve with gauge.
Compatable with a range of expansion vessels
Provides quick and Flexible installation
CImm membrane expansion tanks are CE and WRAS approved.
VESSEL CAN BE PURCHASED INDIVIDUALLY OR WITH A BRACKET OR A SEALED SYSTEM KIT
OR YOU CAN HAVE JUST THE BRAKET OR KIT
Expansion Vessel 35l and above include integrated weight supporting,
floor standing base
Available with delivery or pick up from our Plumbers Merchants in Glasgow
- Free Delivery Over £100.00