Double Check Valves
A common testable option for medium-hazard applications where two independent check valves provide added protection.
- Commercial properties
- Rainwater connections
- Fire services
- Irrigation systems
Backflow Prevention Valves
Backflow Prevention Valve Supply, Installation & Replacement
Quality valve supply and practical installation for Melbourne properties, including double check valves, pressure vacuum breakers, RPZ assemblies and more.
VBA Licence No. 28465
All major valve types
Supply and installation
Testing and service support
The right valve matters
A Backflow Valve Is Not One-Size-Fits-All
Backflow prevention valves protect mains water by stopping reverse flow from private plumbing systems. Different valves provide different levels of protection, which means the right device needs to reflect the property use, level of hazard and plumbing layout.
We supply and install quality testable backflow prevention valves for Melbourne homes and businesses. If you already have a device, we can also help with inspection, repair, replacement and future testing.
Advice on DCV, PVB, RPZ and related assemblies
New valve supply and fitting
Replacement of worn or damaged devices
Practical locations for testing and maintenance
DCV to RPZ
valve options matched to your property risk and use
Valve options
Valves for Common Backflow Risk Profiles
The best valve depends on what is connected to the water service and the level of protection required.
Pressure Vacuum Breakers
Often used on irrigation lines, these valves prevent back-siphonage when installed in the correct position.
- Garden irrigation
- Landscape systems
- Sports facilities
- Open-space watering
RPZ Assemblies
A higher-protection assembly used for high-hazard connections, with a relief valve that adds a fail-safe function.
- Trade waste risks
- Chemical handling
- Industrial processes
- Vehicle wash areas
Existing Valve Upgrades
Replace equipment that is damaged, obsolete, difficult to test or no longer appropriate for the way the site operates.
- Corroded assemblies
- Leaking devices
- Poor access locations
- Changed property use
Valve expertise
Support Before and After Your Valve Is Fitted
We look beyond the hardware itself and consider access, reliability, ongoing servicing and the practical needs of your site.
Device Identification
We can identify the valve type you have and explain its role in your backflow protection setup.
Supply & Fitting
We source and fit suitable assemblies, with an emphasis on durable components and serviceable placement.
Repairs & Replacements
We inspect faults and recommend repair or replacement options based on condition and suitability.
Testing Readiness
We help keep testable valves accessible and prepared for future accredited testing.
What to expect
Valve Installation Without the Guesswork
Our process makes it easier to understand which valve is being installed, where it will sit and how it will be serviced.
01
Inspect the Connection
We review the existing service, possible hazards and the available installation space.
02
Select the Valve
We recommend a valve type that suits the site and the protection level required.
03
Fit the Assembly
The valve is installed in a practical, serviceable position with attention to access and future testing.
04
Explain Next Steps
We outline any commissioning, maintenance or testing that applies to the new device.
Compliance support
A Valve You Can Service With Confidence
Valve placement and access have a major effect on future maintenance. We consider the life of the device, not simply the initial installation.
- Appropriate valve selection for site conditions
- Serviceable placement and clear access
- Support for repair and replacement decisions
- Testing guidance for testable assemblies
FAQ
Common Questions About Backflow Prevention Valves
A double check valve uses two check valves and is commonly used for medium-hazard applications. An RPZ assembly adds a relief valve and is typically selected where a higher level of protection is needed.
We can discuss the valve and its suitability for your property before installation. This helps avoid fitting a device that does not match the site conditions or protection needs.
Service life varies with device quality, water conditions, location, use and maintenance. Regular inspection and timely repairs help extend the useful life of an assembly.
Often it can. We can inspect the valve to identify whether a repair is practical or whether replacement is the more reliable option.
Need Professional Backflow Testing?
Aussie BACKFLOW provides accredited backflow testing and compliance reporting across Melbourne. Contact our accredited specialists today.