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ZI-1300001800B
Zilmet - Cal-Pro Vertical Expansion Vessel - 4 Bar. - 18LtrThe Zilmet Cal-Pro Vertical Expansion Vessel - 4 Bar - 18Ltr is a Pressure Vessel item. The operating pressure of this is 4 Bar.
£73.96 RRP £44.38 £36.98
In stock
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FL-FCST 018
Flamco - 18 Ltr - Flexcon Premium Pressure VesselBuilt for sealed heating (EN 12828) and chilled-water systems, Flexcon Premium Expansion Vessels stabilise system pressure by absorbing thermal expansion so plant runs safely and efficiently. Capacity 18 Ltr.
£114.92 RRP £74.70 £62.25
In stock
Free Standard Delivery
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FL-Airfix P18
Flamco - 18 Ltr - Airfix P Expansion Vessel - Potable WaterBuilt for sealed potable hot and chilled water systems in domestic and commercial settings, these Potable Water Expansion Vessels stabilise pressure by absorbing thermal expansion for safe, reliable operation. Capacity 18 Ltr.
£97.79 RRP £63.56 £52.97
In stock
Free Standard Delivery
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GWS-HWB-18LX
HeatWave - Vessel - Inline - 18LtrThe HeatWave Vessel - Inline - 18Ltr is a Pressure Vessel item. The operating pressure of this is 6 Bar.
£67.46 RRP £49.12 £40.93
In stock
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GWS-PWB-18LX
PressureWave - Vessel - Inline - 18LtrIncludes & Benefits The PressureWave Vessel - Inline - 18Ltr is a Pressure Vessel item.
£98.82 RRP £71.94 £59.95
In stock
Free Standard Delivery
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96528337
Grundfos - GT-H-18-V Vertical Diaphragm Tank - 10 Bar. - 18LtrGT-H is a steel pressure tank with a non-toxic butyl rubber diaphragm with a precision-moulded polypropylene liner for air and water separation engineered for drinking water applications.
£156.00 RRP £61.02 £50.85
In stock
Free Standard Delivery
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AL-PV18W
Reflex - DE Pressure Vessel - 18LtrWRAS approved bladder expansion vessel for mains water supply systems Approval according to EC Pressure Equipment Directive 2014/68/EU.
£69.34 RRP £48.54 £40.45
In stock
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25792
Flamco Flofix - Expansion Vessel - 18Ltr - 10 Bar.The Flamco Flofix is a Potable water expansion vessel, for use in domestic and commercial sealed chilled and hot water systems. Nitrogen gas filling for longer retention of pre-pressure.
£97.79 RRP £63.56 £52.97
In stock
Free Standard Delivery
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.