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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 pump reaches a state of pressure equilibrium. The Mainsboost system now has a volume of pressurised water ready for distribution throughout the property.
- 5 year warranty
- Up to 80 litres/minute per vessel
- 2 x 100 litre pressure vessel
- Minimal maintenance
- Silent operation
- WRAS approved product
- Consumes no electricity
- Lightweight composite construction
- Long life butyl diaphragm
- Integral strainer
- Comprehensive ULK installation kit included
- Patent protected
In stock
Free Standard Delivery
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022-554
ElbiAC25 GPM - 25 Ltr Accumulator Pressure Vessel - 25 Ltr - 10 Bar.The ElbiAC25 GPM 25 Litre Accumulator Pressure Vessel - 25 Ltr - 10 bar. is a Pressure Vessel item. This product is manufactured by Elbi.
The 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.
The operating pressure of this is 10 bar.
£81.60 RRP £69.36 £57.80Out Of StockFree Standard Delivery
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022-556
Elbi - AFH60 Ltr Horizontal Accumulator Pressure Vessel - 60 Ltr - 10 Bar.The Elbi AFH60 Litre Horizontal Accumulator Pressure Vessel - 60 Ltr - 10 bar. is a Pressure Vessel item. This product is manufactured by Elbi.
The 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.
The operating pressure of this is 10 bar.
£261.60 RRP £222.36 £185.30Out Of StockFree Standard Delivery
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022-590
Elbi - AFV 200 Ltr Vertical Accumulator Pressure Vessel - 200 Ltr - 10 Bar. - OBSOLETEThe Elbi AFV 200 Litre Vertical Accumulator Pressure Vessel - 200 Ltr - 10 bar. - Obsolete is a Pressure Vessel item. This product is manufactured by Elbi.
The 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.
The operating pressure of this is 10 bar.
Out Of StockFree Standard Delivery
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022-622
Elbi - AFV 500 Ltr Vertical Accumulator Pressure Vessel- 500 Ltr - 8 Bar.The accumulator vessel is a device that fitted into a pressurised water system will provide system water at a pre-set sustained pressure. This product is manufactured by Elbi. 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.
The Elbi AFV 500 Litre Vertical Accumulator Pressure Vessel- 500 Ltr - 8 bar. is a Pressure Vessel item.
The operating pressure of this is 8 bar.
£1,197.60 RRP £1,017.96 £848.30Out Of StockFree Standard Delivery
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022-631
Elbi - AFV 24-16 24 Ltr Vertical Accumulator Pressure Vessel - 25 Ltr - 16 Bar.The accumulator vessel is a device that fitted into a pressurised water system will provide system water at a pre-set sustained pressure. This product is manufactured by Elbi. 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.
The Elbi AFV 24-16 24 Litre Vertical Accumulator Pressure Vessel - 25 Ltr - 16 bar. is a Pressure Vessel item.
The operating pressure of this is 16 bar.
£226.80 RRP £192.78 £160.65In stock
Free Standard Delivery
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14259
Flamco Airfix - D 8 Expansion Vessel - 8 Ltr - 4 Bar.For use in potable water, or fresh-water installations.
The 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 occur.
Therefore, users can be assured of high quality potable water.
Applying an Airfix D expansion vessel to a water heater prevents the opening of the safety group or safety valve each time the potable water is heated.
The Flamco Airfix D 8 Expansion Vessel - 8 Litre - 4 bar. is a Expansion Vessel item.
In stock
Free Standard Delivery
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24749
Flamco - 50 Ltr - Airfix P Expansion Vessel - 8 BarMaintain potable water hygiene and stable pressure with the Flamco Airfix A flow-through expansion vessel for mains-fed potable and fresh-water systems.
For 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 collecting in the vessel in which bacterial growth could occur.
Therefore, users can be assured of high quality potable water.
Applying an Airfix A expansion vessel to a water heater prevents the opening of the safety group or safety valve each time the potable water is heated.
A synthetic flow-through device installed in a standard T-piece (not included) diverts part of the line flow through the vessel to prevent stagnation. This reduces nuisance safety-valve lift on water heaters and avoids waste, while keeping water continuously refreshed.
- Flow-through design helps suppress bacterial growth
- Protects safety devices by reducing valve lift and leakage risk
- Taste/odour neutral butyl diaphragm for potable use
- Corrosion-resistant internal coatings on water and nitrogen sides
Factory nitrogen pre-charge supports long-term pressure stability. Internationally approved and certified. Compatible with Airfixcontrol for quick annual pre-charge checks.
In stock
Free Standard Delivery
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24909
Flamco Airfix - P DHW Expansion Vessel - 24 Ltr - 2.7 Bar. - HorizontalThe Flamco Airfix P DHW Expansion Vessel - 24 Litre - 2.7 bar. - Horizontal is a Expansion Vessel item.
In stock
Free Standard Delivery
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24912
Flamco Airfix - P Expansion Vessel - 50 Ltr - 2.7 Bar. - HorizontalThe Flamco Airfix P Expansion Vessel - 50 Litre - 2.7 bar. - Horizontal is a Expansion Vessel item.
In stock
Free Standard Delivery
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24914
Flamco Airfix - P Expansion Vessel - 60 Ltr - 2.7 Bar. - HorizontalThe Flamco Airfix P Expansion Vessel - 60 Litre - 2.7 bar. - Horizontal is a Expansion Vessel item.
In stock
Free Standard Delivery
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24919
Flamco Airfix - P Expansion Vessel - 100 Ltr - 2.7 Bar. - HorizontalThe Flamco Airfix P Expansion Vessel - 100 Litre - 2.7 bar. - Horizontal is a Expansion Vessel item.
In stock
Free Standard Delivery
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24923
Flamco Airfix - P DWH Expansion Vessel - 200 Ltr - 2.7 Bar. - HorizontalThe Flamco Airfix P DWH Expansion Vessel - 200 Litre - 2.7 bar. - Horizontal is a Expansion Vessel item.
In stock
Free Standard Delivery
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24925
Flamco Airfix - P DHW Expansion Vessel - 300 Ltr - 2.7 Bar. - HorizontalThe Flamco Airfix P DHW Expansion Vessel - 300 Litre - 2.7 bar. - Horizontal is a Expansion Vessel item.
In stock
Free Standard Delivery
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27914
Flamco Band - Fitting for Airfix Potable Vessel - Suitable For 2 to 35 LtrFor mounting expansion vessels without clench ring (2 - 35 litres) to the wall.
The Flamco Band Fitting for Airfix Potable Vessel -
This product is manufactured by Flamco.In stock
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27915
Flamco - Cubex R BracketFor easy mounting of Cubex R vessels of 12 - 18 litres to a wall.
Flamco (est. 1956) is a Dutch manufacturer of HVAC and plumbing system components, including expansion vessels, air separators and pressurisation accessories. Their ranges are used in heating and chilled-water circuits and potable water systems across domestic and commercial installations.
In stock
Vessels
Pressure vessels and expansion vessels play a big role in keeping systems safe and balanced. Expansion vessels are commonly used in heating and hot water setups, where they absorb the natural rise in water volume as it heats. This keeps pressure under control, reduces the chance of leaks, and protects boilers, pumps, and pipework from damage.
Pressure vessels are found in pressurised water systems, including potable water supplies. By storing water under pressure, they cut down on pump cycling, extend system life, and deliver a steadier, more reliable flow.
At Pumpify, you’ll find both pressure and expansion vessels in a variety of sizes and specifications, so it’s simple to choose the right fit for your project.














