Grundfos accumulator Vessels
16 products
Grundfos GT-D-300 PN10 Double Diaphragm Accumulator Tank The Grundfos GT-D-300 PN10 G1 1/4 V is a robust and efficient vertical pressure tank designed for reliable…
GT-H-24 PN10 G1 H (w. feet and p.stand) Grundfos GT-H-24 PN10 G1 H (w. feet and p.stand) is a Diaphragm pressure tank, with a capacity…
GT-H-80 PN10 G1 H (w.feet and p.stand) Grundfos GT-H-80 PN10 G1 H (w.feet and p.stand) is a Diaphragm pressure tank, with a capacity of 80.0…
GT-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…
GT-H-100 PN10 G1 V Grundfos GT-H-100 PN10 G1 V is a Diaphragm pressure tank, with a capacity of 100.0 l and Vertical installation. The tanks…
GT-D-130 PN10 G1 Grundfos GT-D-130 PN10 G1 is a Double Diaphragm pressure tank, with a capacity of 130.0 l and Vertical installation. The tanks are…
GT-H-80 PN10 G1 V Grundfos GT-H-80 PN10 G1 V is a Diaphragm pressure tank, with a capacity of 80.0 l and Vertical installation. The tanks…
GT-D-240 PN10 G1 1/4 V Grundfos GT-D-240 PN10 G1 1/4 V is a Double Diaphragm pressure tank, with a capacity of 240.0 l and Vertical…
GT-H-18 PN10 G1 V Grundfos GT-H-18 PN10 G1 V is a Diaphragm pressure tank, with a capacity of 18.0 l and Vertical installation. The tanks…
GT-H-24 PN10 G1 V Grundfos GT-H-24 PN10 G1 V is a Diaphragm pressure tank, with a capacity of 24.0 l and Vertical installation. The tanks…
GT-H-60 PN10 G1 V Grundfos GT-H-60 PN10 G1 V is a Diaphragm pressure tank, with a capacity of 60.0 l and Vertical installation. The tanks…
GT-H-60 PN10 G1 H (w.feet and p.stand) Grundfos GT-H-60 PN10 G1 H (w.feet and p.stand) is a Diaphragm pressure tank, with a capacity of 60.0…
GT-D-200 PN10 G 1 1/4V Grundfos GT-D-200 PN10 G 1 1/4V is a Double Diaphragm pressure tank, with a capacity of 200.0 l and Vertical…
GT-D-450 PN10 G1 1/4 V Grundfos GT-D-450 PN10 G1 1/4 V is a Double Diaphragm pressure tank, with a capacity of 450.0 l and Vertical…
GT-H-35 PN10 G1 V Grundfos GT-H-35 PN10 G1 V is a Diaphragm pressure tank, with a capacity of 35.0 l and Vertical installation. The tanks…
GT-H-12 PN10 G 3/4 V Grundfos GT-H-12 PN10 G 3/4 V is a Diaphragm pressure tank, with a capacity of 12.0 l and Vertical installation.…
Frequently Asked Questions
Quick answers to common questions about the Grundfos accumulator Vessels. 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.