Accumulator Tanks
Cold water accumulator tanks WRAS approved
Showing 1–30 of 32 products
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22mm Accumulator KitsView ProductAPS 22mm upstream kit Comprising – 2 – pressure gauges 1 – Lever isolating ball valve 1 – pressure vessel fitting 1 – 6 bar…
£0.00 Inc VAT £0.00 Ex VAT -
22mm Accumulator KitsView Product
APS 22mm upstream kit Comprising – 2 – pressure gauges 1 – Lever isolating ball valve 1 – pressure vessel fitting 1 – 6 bar…
£216.00 Inc VAT £180.00 Ex VAT -
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 -
Accumulators Vessels StainlessView ProductZilmet Ultra Inox-Pro The use of stainless steel with membrane suitable for cold water, hot water and alimentary purposes are the main features of this…
£88.19 Inc VAT £73.49 Ex VAT -
Grundfos accumulator VesselsView ProductGT-H-8 PN10 G1 V Grundfos GT-H-8 PN10 G1 V is a Diaphragm pressure tank, with a capacity of 8.0 l and Vertical installation. The tanks…
£46.68 Inc VAT £38.90 Ex VAT -
Grundfos GT Hot Water Expansion TanksView ProductGrundfos GT tanks ensure long, maintenance-free, reliable and controlled operation and can be integrated in many different systems with a wide variety of pumps. The large number of…
£115.20 Inc VAT £96.00 Ex VAT -
Grundfos GT-U Cold Water Bladder TanksView ProductThe GT-U tanks are steel pressure tanks with a replaceable, non-toxic butyl rubber bladder enclosed by compressed nitrogen. Recommend application: Grey water and Drinking water.
£101.80 Inc VAT £84.83 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 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 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 -
MainsboostView ProductMainsboost MB Mainsboost systems are designed to stablise water pressure and increase flow to combination boilers and unvented systems allowing multiple taps and showers to…
£216.00 Inc VAT £180.00 Ex VAT -
Mainsboost CompositeView ProductMainsboost MB Composite Mainsboost systems are designed to stablise water pressure and increase flow to combination boilers and unvented systems allowing multiple taps and showers…
£1,023.52 Inc VAT £852.93 Ex VAT -
Mainsboost FlomateView ProductStuart Turner Mainsboost Flomate MBF 60 Mainsboost Flomate MBF 60 is designd for higher occupancy properties and to fit neatly within a standard 500mm kitchen…
£0.00 Inc VAT £0.00 Ex VAT -
Mainsboost HorizontalView ProductMainsboost Horizontal MB 200SH-1-22 44747 (22mm fittings) Mainsboost systems are designed to stablise water pressure and increase flow to combination boilers and unvented systems allowing…
£928.20 Inc VAT £773.50 Ex VAT -
Mainsboost Insulation JacketView ProductMainsboost Insulation Jacket Mainsboost insulation jackets have been developed specifically for use with the Mainsboost water performance system when it is located in a roof…
£281.36 Inc VAT £234.47 Ex VAT -
Salamander AccuBoost PumpView ProductSalamander AccuBoost Pump Upgrade Kit ACC-UPG-KIT Converts an unpumped AccuBoost to a pumped Increases mains flow up to 12 l/min Suitable for use with all…
£117.29 Inc VAT £97.74 Ex VAT -
Salamander AccuBoost UnpumpedView ProductAccuBoost will provide a solution in properties where the current mains water supply is unable to meet demand. Ideal for use with combination boilers or…
£575.29 Inc VAT £479.41 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 -
WaterBoost Accumulator VesselsView ProductWater pressure and flow aren’t constant. Peak morning and evening demand on the mains network — plus the long pipe run from the road to…
£381.60 Inc VAT £318.00 Ex VAT
Cold water accumulator tanks WRAS approved
Frequently Asked Questions
Quick answers to common questions about the Accumulator Tanks. 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.