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44513
Stuart Turner Mainsboost MB 100CV-2-22 Mains Water Boosting System- 100Ltr - PairThe 2 vessel Mainsboost 100 litre vertical composite system with 22 mm connections are installed directly onto the incoming water supply and under mains pressure fills with water. When the chamber is full the unit reaches a state of pressure equilibrium. The Mainsboost system now has a volume of pressurised water ready for distribution throughout the property.
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022-554
ElbiAC25 GPM 25 Litre Accumulator Pressure Vessel - 25 Ltr - 10 barThe accumulator vessel is a device that fitted into a pressurised water system will provide system water at a pre-set sustained pressure. Its most common application is to supply systems in which the main supply pressure is too low and a pump is fitted to boost the pressure to an acceptable level. As system demands take place the accumulator vessel will sustain system pressure by feeding additional water into the system at the required pressure. This process will limit the number of times the pump needs to start (pump hunting) in order that system pressure remains at the optimal level.
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022-556
Elbi AFH60 Litre Horizontal Accumulator Pressure Vessel - 60 Ltr - 10 barThe accumulator vessel is a device that fitted into a pressurised water system will provide system water at a pre-set sustained pressure. Its most common application is to supply systems in which the main supply pressure is too low and a pump is fitted to boost the pressure to an acceptable level. As system demands take place the accumulator vessel will sustain system pressure by feeding additional water into the system at the required pressure. This process will limit the number of times the pump needs to start (pump hunting) in order that system pressure remains at the optimal level.
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022-590
Elbi AFV 200 Litre Vertical Accumulator Pressure Vessel - 200 Ltr - 10 barThe accumulator vessel is a device that fitted into a pressurised water system will provide system water at a pre-set sustained pressure. Its most common application is to supply systems in which the main supply pressure is too low and a pump is fitted to boost the pressure to an acceptable level. As system demands take place the accumulator vessel will sustain system pressure by feeding additional water into the system at the required pressure. This process will limit the number of times the pump needs to start (pump hunting) in order that system pressure remains at the optimal level.
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022-620
Elbi AFV 300 Litre Vertical Accumulator Pressure Vessel - 300 Ltr - 16 barThe accumulator vessel is a device that fitted into a pressurised water system will provide system water at a pre-set sustained pressure. Its most common application is to supply systems in which the main supply pressure is too low and a pump is fitted to boost the pressure to an acceptable level. As system demands take place the accumulator vessel will sustain system pressure by feeding additional water into the system at the required pressure. This process will limit the number of times the pump needs to start (pump hunting) in order that system pressure remains at the optimal level.
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022-622
Elbi AFV 500 Litre Vertical Accumulator Pressure Vessel- 500 Ltr - 16 barThe accumulator vessel is a device that fitted into a pressurised water system will provide system water at a pre-set sustained pressure. Its most common application is to supply systems in which the main supply pressure is too low and a pump is fitted to boost the pressure to an acceptable level. As system demands take place the accumulator vessel will sustain system pressure by feeding additional water into the system at the required pressure. This process will limit the number of times the pump needs to start (pump hunting) in order that system pressure remains at the optimal level.
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022-631
Elbi AFV 24-16 24 Litre Vertical Accumulator Pressure Vessel - 25 Ltr - 16 barThe accumulator vessel is a device that fitted into a pressurised water system will provide system water at a pre-set sustained pressure. Its most common application is to supply systems in which the main supply pressure is too low and a pump is fitted to boost the pressure to an acceptable level. As system demands take place the accumulator vessel will sustain system pressure by feeding additional water into the system at the required pressure. This process will limit the number of times the pump needs to start (pump hunting) in order that system pressure remains at the optimal level.
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14259
Flamco Airfix D 8 Expansion Vessel - 8 Litre - 4 barThe Airfix D expansion vessels operate in such a way that the water flows right through and they are continuously flushed with fresh water from the mains. This prevents tepid, stagnant water from collecting in the vessel in which bacterial growth could oc
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24749
Flamco Airfix Expansion Vessel - 50 Litre - 8 barFor use in potable water or fresh water installations. The Airfix A expansion vessels operate in such a way that the water flows right through and they are continuously flushed with fresh water from the mains. This prevents tepid, stagnant water from coll
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24909
Flamco Airfix P DHW Expansion Vessel - 24 Litre - 2.7 bar - HorizontalPotable water expansion vessels for use in domestic and commercial sealed chilled and hot water systems.
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24912
Flamco Airfix P Expansion Vessel - 50 Litre - 2.7 bar - HorizontalPotable water expansion vessels for use in domestic and commercial sealed chilled and hot water systems.
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24914
Flamco Airfix P Expansion Vessel - 60 Litre - 2.7 bar - HorizontalPotable water expansion vessels for use in domestic and commercial sealed chilled and hot water systems.
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24919
Flamco Airfix P Expansion Vessel - 100 Litre - 2.7 bar - HorizontalPotable water expansion vessels for use in domestic and commercial sealed chilled and hot water systems.
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24923
Flamco Airfix P DWH Expansion Vessel - 200 Litre - 2.7 bar - HorizontalPotable water expansion vessels for use in domestic and commercial sealed chilled and hot water systems.
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24925
Flamco Airfix P DHW Expansion Vessel - 300 Litre - 2.7 bar - HorizontalPotable water expansion vessels for use in domestic and commercial sealed chilled and hot water systems.
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27914
Flamco Band Fitting for Airfix Potable Vessel - Suitable For 2 to 35 LitreFor mounting expansion vessels without clench ring (2 - 35 litres) to the wall.
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Vessels
The role of pressure vessels and expansion vessels in a heating or cooling system is to act as a method of compensating for fluid volumes. With water systems, fluids flowing through the circuit will change in volume as the temperature changes. The fluids expand with higher temperatures and contract with lower temperatures. The pressure of the entire system, however, has to be maintained within strict upper and lower limits for optimal operation. Both expansion and pressure vessels are usually made of drawn and welded steel. The exterior surface is treated with an anti-corrosion compound, while a diaphragm is installed within the tank interior and effectively divides the interior space into two. Water on one side of the diaphragm is connected via pipework to the heating and cooling system. When the heating system is operational, the water within the system expands. Too great an expansion of water volumes could damage the system’s pipework, so excess volumes are directed to the tank. Water cannot be compressed, and older heating systems could double pressures within the pipework, causing some catastrophic failures. With an expansion tank, the water will accumulate by compressing the air present on the other side of the diaphragm. If a tap in the system withdraws the water, or the temperature falls and the water contracts, the air will push the water out of the tank to resume circulating around the heating or cooling system. Such vessels are a vital part of relieving excess pressures in domestic, commercial and industrial heating and cooling systems.
