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Ariston Kit A Unvented Water Heater Expansion Vessel

 Ariston Kit A Unvented Water Heater Expansion Vessel

For use with the Ariston Europrisma Unvented Water Heater when it is not possible to accommodate the expansion in the system pipe work.

Product Code: 406801

Shipping: £8.40 inc vat to UK mainland
Surcharges apply to outside of UK mainland - MORE INFO

Price:£42.90 inc vat
£35.75 ex vat
This Expansion Vessel with a non-return valve is for use with the Ariston Europrisma Unvented Water Heater when it is not possible to accommodate the expansion in the system pipe work, it is then necessary to use a set of expansion controls.

These comprise of an expansion vessel and non-return valve (Kit A) and generally a pressure reducing valve (Kit B). It is however possible to use Kit A without Kit B, but the mains water pressure must never reach over 3.5 bar for the expansion vessel to operate correctly.

If the value of mains water pressure cannot be guaranteed an Ariston Preset 3.5 bar Pressure Reducing Valve (Kit B) should be installed as well.
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