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24900
Flamco Airfix Expansion Vessel - P 2LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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Airfix P03 / 24901
Flamco Airfix Expansion Vessel - P 3LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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FL-Airfix P05
Flamco Airfix Expansion Vessel - P 5LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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FL-Airfix P08
Flamco Airfix Expansion Vessel - P 8LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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FL-Airfix P100
Flamco Airfix Expansion Vessel - P 100LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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FL-Airfix P1000
Flamco Airfix Expansion Vessel - P 1000LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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24904
Flamco Airfix Expansion Vessel - P 12LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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FL-Airfix P150
Flamco Airfix Expansion Vessel - P 150LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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FL-Airfix P16
Flamco Airfix Expansion Vessel - P 16LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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FL-Airfix P18
Flamco Airfix Expansion Vessel - P 18LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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FL-Airfix P200
Flamco Airfix Expansion Vessel - P 200LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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FL-Airfix P24
Flamco Airfix Expansion Vessel - P 24LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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FL-Airfix P300
Flamco Airfix Expansion Vessel - P 300LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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FL-Airfix P35
Flamco Airfix Expansion Vessel - P 35LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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FL-Airfix P50
Flamco Airfix Expansion Vessel - P 50LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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FL-Airfix P500
Flamco Airfix Expansion Vessel - P 500LtrThe Airfix P is an expansion vessel that is intended for use on unvented potable systems. The vessel is comprised of a high strength steel shell and EPDM diaphragm. Installation is subject to building regulations. Features include WRAS approved product, suitable for potable systems, standard BSP threaded connection.
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Potable Water Expansion / Pressure Vessels
Closed heating and hot water systems, unlike older gravity-fed systems, need a potable expansion vessel in order to relieve excess pressure that might otherwise cause damage to the system or lead to unpleasant noise from water hammer.
The tank buffers pressure changes caused due to the expansion of water as it’s heated up. They help to ensure there's a constant water pressure, making the operation of showers and mixer taps more predictable.
We stock potable water expansion vessels in a range of different sizes. The Varem range of vessels starts from 2 litres in size; they can be used for hot and chilled systems, with a wide operating temperature range from minus 10 to plus 99 Celsius.
They come pre-pressurised at 2.0 bar and are available in sizes up to 25 litres, making them suitable for different types and sizes of installation. Stainless-steel flanges are used on all 8-10 bar vessels to ensure a long, reliable life.
A potable expansion vessel suitable for larger installations, the Reflex DE range starts at 60 litres capacity. Again, these are suitable for chilled and heating applications with a maximum pressure of 10 bar and a maximum temperature of 70 Celsius. They’re pre-pressurised to 4.0 bar and come in sizes up to a generous 500-litre capacity, which is suitable for large commercial or multi-occupancy applications.
All connections on Reflex DE vessels are threaded for ease of installation. The full range of sizes for both types of potable expansion vessel is available to view on our website so that you can order the one you need.
