Australian New Zealand Standard AS / NZS 2845.1:2010 Water supply - Backflow Prevention Devices Materials, Design and Performance Requirements - Australian Capital Territory


You must comply with this standard if you intend to manufacture backflow prevention devices.

This standard specifies requirements for the materials, design, performance and testing of mechanical backflow prevention devices that are used for the protection of water supplies.This standard covers backflow prevention devices classified as PN 10, PN 12 or PN 16, of the following types:

  • atmospheric vacuum breaker
  • hose connection vacuum breaker
  • dual check valve with atmospheric port
  • dual check valve
  • dual check valve with intermediate vent
  • pressure-type vacuum breaker
  • double check valve
  • double check detector assembly
  • reduced pressure zone device
  • reduced pressure detector assembly
  • spill-resistant pressure vacuum breaker
  • beverage dispenser dual check valve with atmospheric port
  • pipe interrupter device
  • single check valve (testable)
  • single check detector assembly testable.

Unless otherwise specified, the nominal size of a device is determined by the inlet connection.

Service type

Code of Practice

A code of practice is a set of rules which details how people in a certain industry should behave. A code of practice can be defined as a result of legislation or by industry regulators and bodies.

Act(s) name

Water and Sewerage Act 2000 Australian Capital Territory

Regulation(s) name

Water and Sewerage Regulations 2001 Australian Capital Territory

Administering agency

Environment, Planning and Sustainable Development Directorate