RPZ Backflow Preventer

Backflow Prevention Valves

High quality backflow prevention valves that keep water supplies sanitary and safe. 

Discover our range

Reliance Valves Backflow Prevention Valves keep water supplies sanitary and safe by protecting plumbing systems from contamination, back pressure or back siphonage. 

From single check valves to double check valves, through to more specialised Reduced Pressure Zone (RPZ) Preventers for commercial and healthcare settings, we offer an extensive range suitable for different types of Fluid Category risk. Our RPZs incorporate a one-piece cartridge to make servicing and maintenance fast and simple, while minimising downtime. The backflow prevention valve is designed with a detachable upper body to make the cartridge more accessible. 

Available with compression and BSP unions for installation flexibility. 

6 Total available results

Compact STBA RPZ Valve

Protects plumbing systems from contamination, back pressure or back siphonage up to Fluid Category 4 (STBA type backflow prevention)