Approved Contractor: FAQs

Who can install and test an RPZ valve?

In addition to manufacturers installation instructions RPZ valves must be installed and tested in accordance with the RPZ AIM

Once installed an RPZ valve needs to be commission and compliance tested before it can be brought into service. The valve will also need to be compliance tested at regular intervals thereafter, as well as following relocation or repair.

To comply with the RPZ AIM commission and compliance testing should only be carried out by someone having an RPZ valve testing qualification recognised by the local water undertaker.

Details of what is required by water undertakers to be considered as evidence of competency to test an RPZ valve are provided in the RPZ AIM glossary.





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Uncontrolled if downloaded. This is informative, non-statutory guidance and intended for general guidance purposes only; it is subject to change.

Compliance with this information should not be relied upon as guaranteeing no enforcement action will be taken by water undertakers. Water Regs UK accepts no liability for loss, indirect or consequential loss arising from or in connection with this guidance document.

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