Grundfos GT-U Cold Water Bladder Tanks
Grundfos GT-U Cold Water Bladder Tanks
27 models in the Grundfos GT-U Cold Water Bladder Tanks range.
26 products
Grundfos GT-U 500 l vertical bladder pressure vessel, 10 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 600 l vertical bladder pressure vessel, 10 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 800 l vertical bladder pressure vessel, 10 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 1000 l vertical bladder pressure vessel, 10 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 1500 l vertical bladder pressure vessel, 10 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 2000 l vertical bladder pressure vessel, 10 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 3000 l vertical bladder pressure vessel, 10 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 4000 l vertical bladder pressure vessel, 10 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U-5000-V 10 bar vertical pressure tankGrundfos GT-U vertical steel pressure tank with a replaceable, non-toxic butyl rubber bladder, rated at 10 bar. Recommended for…
Grundfos GT-U 12 l vertical bladder pressure vessel, 16 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 25 l vertical bladder pressure vessel, 16 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 80 l vertical bladder pressure vessel, 16 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 100 l vertical bladder pressure vessel, 16 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 200 l vertical bladder pressure vessel, 16 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 300 l vertical bladder pressure vessel, 16 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 400 l vertical bladder pressure vessel, 16 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 500 l vertical bladder pressure vessel, 16 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 600 l vertical pressure vessel, 16 barVertical cold water pressure tank. For booster sets, pressure systems and borehole pumps.600 lVolume16 barMax pressure1.9 barPre-chargeG…
Grundfos GT-U 800 l vertical bladder pressure vessel, 16 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 1000 l vertical bladder pressure vessel, 16 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 1500 l vertical bladder pressure vessel, 16 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 2000 l vertical bladder pressure vessel, 16 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 3000 l vertical bladder pressure vessel, 16 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 4000 l vertical bladder pressure vessel, 16 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 5000 l vertical bladder pressure vessel, 16 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Grundfos GT-U 8 l vertical bladder pressure vessel, 25 barVertical cold water pressure tank with a replaceable butyl rubber bladder, so the water never touches…
Frequently Asked Questions
Quick answers to common questions about the Grundfos GT-U Cold Water Bladder 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.
What types of Grundfos pumps are available?
Grundfos offers circulators, booster pumps, borehole pumps, drainage pumps and other solutions for domestic and commercial systems.
How do I identify the correct Grundfos pump model?
Use the model name and product number on the pump nameplate, then check the electrical, hydraulic and connection specifications.
Can a Grundfos pump improve household water pressure?
A suitably selected Grundfos booster system can improve water pressure or flow, subject to the property’s water supply and installation requirements.