RPZ Valve Tester

What are RPZs?

Type BA backflow protection devices are more commonly known as Reduced Pressure Zone valves or RPZ valves. It is a legal requirement to have these devices checked on a regular basis, at least yearly, to ensure they provide the backflow protection required.

All installations, commissioning and testing must be carried out in accordance with the Water Suppliers’ Approved Installation Method AIM-08-01. The commissioning and testing of these valves must only be carried out by an accredited tester approved by the local water supplier.

Note: The Water Suppliers' Approved Installation Method AIM 08-01 is currently under review.

Searching for an RPZ tester?

Use the search facility to find an RPZ valve tester in your area.

Information for RPZ testers

The publication AIM-08-01 is under revision and amongst the proposed changes is to revise the way RPZ testers are listed in the 'Find a RPZ tester'  search facility. The purpose is to improve the information published about those testers currently providing RPZ testing services.  If, as an RPZ tester, you no longer appear on this list and wish to do so click here for more information on how to update your details.