Accumulator Vessels - Composite
Accumulator Vessels – Composite
9 models in the Accumulator Vessels – Composite.
9 products
GWS 60 litre Composite Accumulator C2B-60LVOffering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…
GWS 80 litre Composite Accumulator C2B-80LVOffering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…
GWS 100 litre Composite Accumulator C2B-100LVOffering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…
GWS 130 litre Composite Accumulator C2B-130LVOffering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…
GWS 200 litre Composite Accumulator C2B-200LVOffering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…
GWS 250 litre Composite Accumulator C2B-250LVOffering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…
GWS 300 litre Composite Accumulator C2B-300LVOffering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…
GWS 350 litre Composite Accumulator C2B-350LVOffering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…
GWS 450 litre Composite Accumulator C2B-450LVThe C2Lite CAD™ series offers a lightweight composite solution with proven performance. Designed with GWS Challenger™ tanks’ patented controlled action…
Frequently Asked Questions
Quick answers to common questions about the Accumulator Vessels – Composite. 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.
What is a pressure vessel used for in a pumping system?
A pressure vessel stores water under pressure, helping maintain supply and reduce unnecessary pump starts.
What is the difference between an accumulator and an expansion vessel?
Accumulators provide pressurised water storage, while expansion vessels accommodate volume changes caused by temperature; product suitability depends on system design.
How do I choose a pressure vessel?
Consider intended use, capacity, maximum working pressure, pre-charge requirements, installation orientation and potable-water suitability.