Backflow Preventer with Controllable Reduced Pressure Zone

The BA4760 backflow preventer with controllable reduced pressure zone is designed to protect drinking water networks. It prevents from polluted water backflows in the public and the private networks. This sanitary safety device is compliant with the EN12729 standard. It is composed of:
• Three pressure areas: upstream, intermediate and downstream chamber
• Two independent non-return devices separating the intermediate zone from each other areas, normally closed when there is no water
• A discharge device (in open air) in the intermediate zone, normally open in water off position