Pressure Vessels / Cold Water Accumulators

Pressure Vessel/Pressure Tank/Accumulators can be used in conjunction with pressure pump boosting sets. They have the ability to hold water at closed valve static pressure. This will prevent the pump from switching on/off for quick short periods at a time.

Examples,

If used without a boosting set – if someone were to quickly wash their hands, water would initially come from the pressure tank, if the tap was then closed, the pressure vessel would automatically refill from the mains pressure.

If used with a boosting set  – if someone were to quickly wash their hands, water would initially come from the pressure tank, if the tap was then closed, the pressure vessel would only refill if the system fell below the cut in pressure of the booster set, which is nominally set at mains pressure.

The pump would also only need to kick in once the pressurised water from the tank has been used ie. if you were to fill a bath or use the shower.

Pressure vessels can also protect the pump by absorbing any shock to the system ie. if a tap is closed too quickly.