GWS Products
Accumulator tanks with diaphragm technology
21 products
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Accumulator VesselsView ProductAccumulators – Low Water Flow Applications Water pressure and flow is not constant and demand during busy morning and evening periods may reduce water pressure…
£36.00 Inc VAT £30.00 Ex VAT -
Accumulator Vessels - CompositeView ProductGWS C2Lite CAD™ Composite Vessels Offering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…
£188.40 Inc VAT £157.00 Ex VAT -
Accumulator Vessels HorizontalView ProductCold water Horizontal accumulator vessels. Maintenance free and WRAS approved. Diaphragm design Patened stainless steel water connection Virgin polypropylene liner Condensation reducing design Two-part polyurethane,…
£38.40 Inc VAT £32.00 Ex VAT -
Accumulator Vessels TripleView ProductTriple Cold water accumulator vessels. Maintenance free and WRAS approved. Diaphragm design Patened stainless steel water connection Virgin polypropylene liner Condensation reducing design Two-part polyurethane,…
£512.40 Inc VAT £427.00 Ex VAT -
Accumulator Vessels TwinView ProductTwin Cold water accumulator vessels. Maintenance free and WRAS approved. Diaphragm design Patened stainless steel water connection Virgin polypropylene liner Condensation reducing design Two-part polyurethane,…
£332.40 Inc VAT £277.00 Ex VAT -
GWS FilterView ProductGWS – Big Blue Filter Housings The 20″ Big Blue water filter is intended for very large whole-house applications or industrial systems where high flow rates are required. …
£9.98 Inc VAT £8.32 Ex VAT -
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GWS FlowThru CompositeView ProductGWS 60 litre FlowThru Composite CFB-60LV The FlowThru™ range of tanks is ideally suited for systems where the water stored in the tank is not circulated due…
£266.40 Inc VAT £222.00 Ex VAT -
GWS FlowThru InlineView ProductGWS FlowThru™ Inline Adaptor Plus – Anti-Legionella valve (flow through) The FlowThru™ inline adaptor, compatible with GWS inline tanks with 1″ connection, is uniquely designed to ensure…
£42.60 Inc VAT £35.50 Ex VAT -
GWS FlowThru SteelView Product
GWS 80 litre FlowThru Steel GFU-80LV The FlowThru™ range of tanks is ideally suited for systems where the water stored in the tank is not…
£316.80 Inc VAT £264.00 Ex VAT -
GWS HeatWave Hydronic Expansion TanksView ProductGWS HeatWave HeatWave™ tanks are the quality solution for hydronic expansion. HeatWave™ tanks are built to the same stringent standards as the PressureWave™ and…
£16.80 Inc VAT £14.00 Ex VAT -
GWS HydroGuard Shock ArrestorsView ProductGWS HydroGuard Shock Arrestors HydroGuard™ shock arrestors are specially designed for use in hydraulic hammer arresting applications. HydroGuard™ shock arrestors are built to…
£49.20 Inc VAT £41.00 Ex VAT -
GWS MaxView ProductGWS Max 2 litre 16Bar Vertical Vessel MXB-2LX Featuring the same high-quality, zero-maintenance design as our PressureWave™ series, Max™ and UltraMax™ tanks are built with…
£39.36 Inc VAT £32.80 Ex VAT -
GWS Pressure WaveView ProductCold water accumulator vessels. Maintenance free and WRAS approved. Diaphragm design Patened stainless steel water connection Virgin polypropylene liner Condensation reducing design Two-part polyurethane, epoxy…
£32.40 Inc VAT £27.00 Ex VAT -
GWS Reverse OsmosisView ProductG500™ The G500™ is an advanced continuous flow Reverse Osmosis system ideally suited for residential and commercial application, The system which can produce up to…
£181.20 Inc VAT £151.00 Ex VAT -
GWS Superflow Replacement MembranesView ProductA selection of vertical replacement membranes for the GWS Superflow Range.
£72.00 Inc VAT £60.00 Ex VAT -
GWS SuperFlow™ TanksView ProductGWS SuperFlow Global Water Solutions’ SuperFlow™ tanks are ideally suited for applications where high-pressure ratings are required. These applications include booster systems, heating expansion and…
£416.40 Inc VAT £347.00 Ex VAT -
GWS UltramaxView ProductFeaturing the same high-quality, zero-maintenance design as our PressureWave™ series, Max™ and UltraMax™ tanks are built with thicker gauge steel to handle the toughest high-pressure…
£59.40 Inc VAT £49.50 Ex VAT -
GWS ZeroSpotView ProductZeroSpot™ Deionized water eliminates hard water spots – Just rinse and walk away! Perfect for car cleaning and many applications where the shine is important.…
£252.00 Inc VAT £210.00 Ex VAT -
One Stop PlusView ProductOneStop Plus™ The OneStop Plus™ system is not a softener, it is a water conditioner designed to protect open circuit piping from limescale deposits. It…
£85.20 Inc VAT £71.00 Ex VAT -
Vessel BracketsView ProductHorizontal mounting brackets to convert vertical GWS tanks for horizontal installation Available for 150 litre to 300 litre models.
£30.00 Inc VAT £25.00 Ex VAT
GWS Products
Accumulator tanks with diaphragm technology
Frequently Asked Questions
Quick answers to common questions about the Vessel Brackets. For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.
What is an accumulator tank?
An accumulator tank is a pressurised vessel that connects directly to the mains supply and stores water under pressure. When a tap or shower opens, water discharges immediately from the vessel at full mains pressure rather than drawing only from the street main. This delivers stronger, more consistent flow at peak times. Accumulators have no pump and no moving parts so they are maintenance free and silent.
When should I use an accumulator instead of a pump?
An accumulator is the right solution when static mains pressure is adequate – above 2 bar – but flow is poor or drops during peak demand. It boosts available flow without adding a pump, energy use or noise. If static pressure is below 2 bar, a booster pump is needed instead, or an accumulator combined with a charge pump such as the WaterBoost ACF1.
What size accumulator do I need?
Accumulators are typically sized on a 60 per cent usable rule – a 300 litre vessel delivers around 180 litres of boosted water per cycle. As a guide, a 2 to 3 bedroom home suits a 300 litre vessel such as the GWS GCB-300LV. Larger 4 to 5 bedroom homes or properties with multiple bathrooms typically need 450 to 600 litres. Vertical models save floor space, horizontal models suit lofts and roof spaces.