Backflow Prevention Reduced Pressure Zone Devices Reduced Pressure Zone Devices

Reduced Pressure Zone Devices

Reduced Pressure Zone Device protects against backflow by either back-pressure or back-siphonage from a cross-connection between potable water systems and substances in ‘high hazard’ conditions.

The device is 3rd party certified to AS/NZS 2845.1. It consists of two (2) mechanically independent, spring loaded, center stem guided check valves. It also has a hydraulically dependent differential pressure relief valve with the sensing passage set in an integral cast and bronze body, with a single access cover. The assembly has three (3) vertical test cocks and two shut off valves which are quarter-turn, full-port and resilient seated.

The relief valve has a removable stainless steel seat ring. The check valves are held into place by stainless steel clips and the check valve assemblies are non-interchangeable with silicone discs.






Device Only

Size Catalogue Number
15MM SR001
20MM SR002
25MM SR003
32MM SR004
40MM SR005
50MM SR006
65MM SR007
80MM SR008
100MM SR009
150MM SR010
200MM SR011


Size Catalogue Number
15MM SR001C
20MM SR002C
25MM SR003C
32MM SR004C
40MM SR005C
50MM SR006C
65MM SR007C
80MM SR008C
100MM SR009C
150MM SR010C
200MM SR011C

Complete with Lockable Ball Valve

Size Catalogue Number
15MM SR001C-L
20MM SR002C-L
25MM SR003C-L
32MM SR004C-L
40MM SR005C-L
50MM SR006C-L