RPZ valves must be tested on an annual basis or in some cases every six months in order to meet local water authority requirements.

Tests must be carried out by an accredited tester. 

What is an RPZ valve?

An RPZ or Reduced Pressure Zone Device (RPZD, RPZ or RPZ valve) is a type of backflow prevention device used to protect water supplies from contamination due to backflow and back siphonage.

Your responsibilities under the law

If you are not sure whether you need RPZ valve testing or need further advice, then please get in touch for a consultation.

Installation & testing of RPZ Valves across the UK

DCS are qualified and accredited testers of RPZ valves and we are able to carry out tests across the UK.

Our services include:

  • RPZ valve installation
  • RPZ valve testing
  • RPZ valve service & maintenance

RPZ Valve Servicing and Testing