A commercial kitchen owner needed a backflow prevention device installed in Sydney
For this commercial kitchen property owner we installed a 50mm Reduced Pressure Zone Device (RPZD) which is a Sydney Water requirement to have a testable Backflow device fitted. The purpose of the device is to protect Sydney Water’s mains from any property deemed to be considered a high hazard. When the device detects backflow or discharge from the property it shuts off. It has to be accessible for annual testing purposes and this is necessary to ensure the valve is working as per its intended use.
For this property the landlord received a letter from Sydney Water asking for the valve to be installed & it had to be done within a certain time period otherwise they would shut the water off to the kitchen.
To get a backflow prevention device installed you must only use licensed plumbers with backflow prevention accreditation issued by a registered training organisation (backflow plumbers) can inspect, commission and test backflow devices.
Once backflow devices have been installed, only backflow plumbers can test them. Once a test has been done, backflow plumbers must submit the test report to Sydney Water
The type of backflow prevention device you require will depend on your site. The hazard rating of your site’s processes will determine which type of device you need to install. If the hazard rating varies due to multiple processes, you must apply the highest hazard rating.
Reduced pressure zone device (hazard rating – high)
This device has two independent action, non-return valves that are force-loaded to the closed position. A relief valve is positioned between the non-return valves and is arranged to be force-loaded to open to the atmosphere.
Break tank/air gap (hazard rating – high)
This device has an air break (physical gap) between the lowest water service pipe outlet and any upstream tank, fitting or container.
Testable double check valve (hazard rating – medium)
This device has two independent action, non-return valves that are force-loaded to the closed position. It is fitted with three test taps for yearly testing.
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Drainer | gas fitter | plumber | renovator
Nu-Trend is a Sydney company with more than 15 years experience completing bathroom renovations & solving plumbing problems. he Directors Rob and Rick are hands-on, and provide a personalised service.
STANDARDS AUSTRALIA AS/NZS3500:2018 Compliant
All the work carried out by Nu-Trend is AS/NZ3500:2018 compliant. It is the Australian Standard for Plumbing and Drainage in NSW as set down by Standards Australia and the Australian Building Codes Board. They give the plumbing industry technical direction to enable compliance with required regulatory frameworks.
15 years experience with a written commitment.
Rick and Rob are the hands-on directors for Nu-Trend. Rather than hire sub-contractors and manage their business from a distant office, they are on the tools, at your site & working towards delivering your bathroom renovation or plumbing service. It means you are talking directly to the owners of the business, the guys who are accountable and responsible rather than via email or through customer service teams.
It is why they are able to provide a written guarantee that demonstrates their confidence in standing by the quality of their workmanship and the service they deliver to every single client.
They have a very single minded commitment to deliver a high level of professionalism and quality, they’ve been doing renovation contracting in Sydney for 15+ years.