RPZ (Reduced Pressure Zone) valve (Type BA back flow preventer) is used in most commercial and industrial applications requiring protection up to fluid category 4 to avoid back syphonage and pollution of drinking water distribution systems.

Scottish Water Byelaws 2014 and WRAS water regulations, require by law that RPZ valves are tested and certificated annually by a WRAS accredited tester and documentation provided to the local water authority.

As a WRAS approved RPZ tester we can plan and carry out all your RPZ testing, supply, installation and commissioning to conform with all legal requirements.