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Accumulators Vessels Stainless

Zilmet 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 range of vessels. The Ultra INOX-Pro range of stainless steel expansion vessels are equipped with a non-toxic membrane suitable for contact with drinking water according to the British WRAS/WRc AND French ACS regulations. Combining high quality of materials, efficient manufacturing procedures and continuous quality control, these stainless steel expansion vessels allow long lasting operation with minimal special maintenance.
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    Accumulators Vessels Stainless
    Ultra Inox-Pro 2 litre vertical Potable vessel

    Zilmet 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…

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    Accumulators Vessels Stainless
    Ultra Inox-Pro 8 litre vertical Potable vessel

    Zilmet 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…

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    Accumulators Vessels Stainless
    Ultra Inox-Pro 12 litre vertical Potable vessel

    Zilmet 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…

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    Accumulators Vessels Stainless
    Ultra Inox-Pro 24 litre vertical Potable vessel

    Zilmet 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…

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    Accumulators Vessels Stainless
    Ultra Inox-Pro 24 litre Horizontal Potable vessel

    Zilmet 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…

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    Accumulators Vessels Stainless
    Ultra Inox-Pro 60 litre Horizontal Potable vessel

    Zilmet 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…

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    Logo for Lowara
    Accumulators Vessels Stainless
    Ultra Inox-Pro 60 litre vertical Potable vessel

    Zilmet 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…

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Frequently Asked Questions

Quick answers to common questions about the Accumulators Vessels Stainless. 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.