DCS are accredited testers of RPZ Valves

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

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

RPZ valves must be tested on an annual basis, and in some cases every six months in order to meet local water authority requirements. Tests must be carried out by an accredited tester.

Our services include:

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