Tool

Valve selector tool

Answer five questions about installation type, fluid category and pressure to receive a recommended valve.

Enter supply conditions

Fluid category Application type Supply pressure Pipe size

Recommended protection device

Enter values and calculate to see a recommendation with the supporting regulation citation.

STEP

Installation type, fluid category and whether the hose can reach a hazard.

STEP

Supply pressure and any downstream pump decide BA vs air gap.

STEP

The tool names a device family (ED, BA, Type A). Confirm on the matching guide.

Regulation guide

ED devices for Fluid Category 3 and the cases where they are no longer sufficient.

Sizing, materials and isolation strategy for protected wholesome supplies.

Reduced pressure zone valves — installation, AIM, annual testing and Fluid Category 4 protection.