Please refer to the main Schedule of Products page for more information.

Valves – Backflow prevention

Product type Product scope/application Specification Year
Combination pressure limiting and dual check valve (CV) A combination pressure limiting with dual check valve classified as PN 10, 12 or 16. AS/NZS 2845.1 Water supply - Backflow prevention devices - Materials, design and performance requirements Note: See NoD 2017/4.3 1998 or 2010
Inlet pressure control valves primarily for use in a heated water service. AS 1357.2 Valves primarily for use in heated water systems – control valves Note: See NoD 2017/4.3 2005
Non-return valve Non-return valves that may be a separate valve or part of a combination valve that is to be fitted to the inlet of a water heater. AS 1357.1 Valves primarily for use in heated water systems Protection valves 2019
Single check valve Metallic non-return valves of nominal sizes DN 8 to 100 for use in heated and cold water applications where the operating temperature does not exceed 99°C. AS 1628 Water supply - Metallic gate, globe and non-return valves 1999
A single check valve (testable) classified as PN 10, 12 or 16. AS/NZS 2845.1 Water supply - Backflow prevention devices - Materials, design and performance requirements 2010
Vented double check valve Vented double check valve classified as PN 10, 12 or 16. AS/NZS 2845.1 Water supply - Backflow prevention devices (Materials, design and performance requirements) 2010
Vacuum breaker check valve (VBCV) Vacuum breaker check valve classified as PN 10, 12 or 16 AS/NZS 2845.1 Water supply - Backflow prevention devices - Materials, design and performance requirements 2010
Reduced pressure zone device (RPZD) A reduced pressure zone device classified as PN 10, 12 or 16. AS/NZS 2845.1 Water supply - Backflow prevention devices -Materials, design and performance requirements 2010
Reduced pressure detector assembly (RPDA) A reduced pressure detector assembly classified as PN 10, 12 or 16 AS/NZS 2845.1 Water supply - Backflow prevention devices -Materials, design and performance requirements 2010
Pressure type vacuum breaker (PVB) A pressure type vacuum breaker classified as PN 10, 12 or 16. AS/NZS 2845.1 Water supply - Backflow prevention devices -Materials, design and performance requirements 2010
Hose connector vacuum breaker (HCVB) A hose connection vacuum breaker classified as PN 10, 12 or 16. AS/NZS 2845.1 Water supply - Backflow prevention devices -Materials, design and performance requirements 2010
Double check detector assembly (DCDA) A double check detector assembly classified as PN 10, 12 or 16. AS/NZS 2845.1 Water supply - Backflow prevention devices -Materials, design and performance requirements 2010
Dual check valve (Dual CV) A dual check valve classified as PN 10, 12 or 16. AS/NZS 2845.1 Water supply - Backflow prevention devices -Materials, design and performance requirements 2010
Double check valve (DCV) A double check valve classified as PN 10, 12 or 16. AS/NZS 2845.1 Water supply - Backflow prevention devices -Materials, design and performance requirements 2010
Dual check valve with intermediate vent (Du CV) A dual check valve with intermediate vent classified as PN 10, 12 or 16. AS/NZS 2845.1 Water supply - Backflow prevention devices -Materials, design and performance requirements 2010
Dual check valve with atmospheric port (DCAP) A dual check valve with atmospheric port classified as PN 10, 12 or 16. AS/NZS 2845.1 Water supply - Backflow prevention devices -Materials, design and performance requirements 2010
Beverage dispenser dual check valve with atmospheric port (BDDC) A hose connection vacuum breaker classified as PN 10, 12 or 16. AS/NZS 2845.1 Water supply - Backflow prevention devices -Materials, design and performance requirements 2010
Atmospheric vacuum breaker (AVB) An atmospheric vacuum breaker classified as PN 10, 12 or 16. AS/NZS 2845.1 Water supply - Backflow prevention devices -Materials, design and performance requirements 2010
Anti-spill pressure vacuum breaker (APVB) A spill-resistant pressure vacuum breaker classified as PN 10, 12 or 16. AS/NZS 2845.1 Water supply - Backflow prevention devices -Materials, design and performance requirements 2010
Non-return reflux valve Non-return reflux valves of nominal sizes DN 8 to 100 for use in heated and cold water applications where the operating temperature does not exceed 99°C. AS 1628 Water supply - Metallic gate, globe and non-return valves 1999
Metal-bodied flanged non-return valves (swing check and tilting disc types) for use in water supply and pressure sewerage systems (swing check only) suitable for operation in both horizontal and vertical positions. Includes Class 16 and 35 valves in the size range DN 80 to 750, inclusive, with the maximum temperature of the medium flowing through the valve not exceeding 60°C. Products include: Non-return, free-acting valve, Non-return valve with extended hinge pin suitable for position indication, micro-switches, counterweight lever arm and counterweight. Non-return valve fitted with position indicator and/or counterweight lever arm and counterweight. Counterweight lever and counterweight for retrofit to valve with extended hinge pins. Non-return valve with resilient seated disc. AS 4794 Non-return valves - Swing check and tilting disc 2001
PVC-U (Polyvinyl Chloride Unplasticised) and ABS (Acrylonitrile Butadiene Styrene) plastics bodied reflux valves of nominal sizes DN 100 to 600 intended for waste water. WMTS-006 Reflux Valves - Sewerage 2014