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To test a TMV in Australia, you must be a licenced plumber with thermostatic valve accreditation provided by state authorities in your jurisdiction. Plumbers such as CRG have the accreditation in order to test your equipment and provide a report.

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Backflow prevention devices are required under our Site Containment Backflow Prevention Standard, Australian Standards AS/NZS 2845: Water Supply – Backflow Prevention and AS/NZS 3500: Plumbing and Drainage for any property or operations that pose a risk to the public drinking water supply.

If you need more advice on backflow prevention devices, installation, testing or accreditation, get your questions answered by contacting our team.

The hazard rating of the site's operations and processes determines which type of device you are required to install. If the hazard rating varies due to multiple processes, you must apply the highest hazard rating.

A Thermostatic Mixing Valve (TMV) is a valve that blends hot water (stored at temperatures high enough to kill bacteria) with cold water to ensure constant, safe outlet temperatures preventing scalding. Commonly found in nursing homes, child care centres and disabled toilet blocks, fitted to showers and hand basins.

Backflow risk can be classed as low, medium or high as provided in our Site Containment Backflow Prevention Standard and Australian Standard AS/NZS 3500 Plumbing & Drainage.

Have you done your annual thermostatic mixing valves testing? If your TMV needs testing, we specialize in annual testing and installations. Call the experts at CRG on 02 4656 4064 or fill out our contact form to discuss your requirements.

Yes. If the property owner considers the risk rating assigned to the property is higher than the risk of site-specific activities being carried out, then they may appeal this rating.

All properties connected to our water supply system are required to be risk assessed and have an applicable site containment backflow prevention device installed. The risk assessment should address the requirements of our Site Containment Backflow Prevention Standard to determine if the property is a high, medium or low hazard risk to the drinking water supply.

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An isolation valve stops the flow of gas, liquid, slurry or powder. These valves typically operate in the closed or fully open position to direct process media.

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To test a TMV valve, we isolate the hot water and then put the valve into a thermo shut down. After, we repeat this process with the cold side whilst recording the temperature of the water.

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Backflow prevention refers to the control of potentially harmful contaminants entering into our drinking water supply from cross connections in a customer’s premises or backflow of contaminants into the water supply system.

Thermostatic mixing valves must be tested and maintained yearly by a qualified TMV license holder like CRG Plumbing & Maintenance.

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Thermostatic mixing valves must be tested by law every 12 months. Not to do so could result in serious consequences for the property owners.

The hazard rating of the site's operations and processes determines which type of device you are required to install. If the hazard rating varies due to multiple processes, you must apply the highest hazard rating.

You do not test a thermostatic shower valve, not to be confused with a thermostatic mixing valve. Thus, a mixer shower does not need to be tested, and in fact there are no tests for this type of shower.

A TMV test is a procedure we use to put the valve (TMV) through to a process to simulate a loss of flow of the one of the water supplies, and also a temperature test. It checks the components of the valve too.

Thermostatic mixing valves testing is mandatory, and must be carried out by a qualified plumber on an annual basis. CRG Plumbing are the experts when it comes to helping you comply with TMV testing requirements in Campbelltown and Greater Sydney areas.

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The TMV circulates and mixes hot and cold water and then distributes warm water at a temperature less than 50°C. They MUST be tested on a yearly basis.

If your business is one of the below, you should have a TMV installed and have it annually test to ensure the safety of your staff and customers.