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  • 48 hours delivery, if you order before 5:00 pm
  • Package collection at one of our 2,500 pickup points
  • Customer satisfaction rate 4.6/5
  • Over 85,000 customers ordered before you
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Expansion vessel

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Help Centre

Expansion vessel

Want to replace an expansion vessel? Or looking for an expansion vessel for your pump? Waterpompshop has expansion vessels in many different sizes and fittings.

When using an expansion vessel it is possible to store water reserves, which can later be used without having to switch on the corresponding pump. For this reason, expansion vessels are great energy savers.

An expansion vessel's diaphragm consists of two parts, which are connected to each other by a special connecting ring. This ring ensures that the water in the vessel only comes into contact with stainless steel. Naturally, this is very important when it comes to drinking water.