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Use these water pressure regulators to control excessive pressure in residences located near your water system's source. They are rated for inlet pressures up to 300 psi, with outlet pressure adjustable within the ranges specified below. A built-in bypass prevents excessive system pressure buildup caused by thermal expansion on the outlet side of the valve (bypass will not operate at pressures above 150 psi).

A tempering valve, otherwise known as hot water mixing valve or a hot water tempering valve, is either a 2-inlet or 3-inlet adjustable mixing valve which is activated by temperature. It regulates the temperature that hot water is released from outlets throughout your home, by mixing both hot and cold water together to achieve a particular temperature.

In Queensland, hot water must be heated to a minimum of 60°C to prevent the growth of bacteria such as Legionella, and a tempering device ensures that hot water is delivered to taps at a maximum temperature of 50°C.

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We specialise in providing professional maintenance plumbing services – 24 hours a day, 7 days a week everywhere in Brisbane. If you have an emergency plumbing situation then contact our office and we will come to you ASAP!

Use these water pressure regulators to control excessive pressure in residences located near your water system's source. They are rated for inlet pressures up to 300 psi, with outlet pressure adjustable within the ranges specified below. A built-in bypass prevents excessive system pressure buildup caused by thermal expansion on the outlet side of the valve (bypass will not operate at pressures above 150 psi).

The mixing valve is a sliding component that is contained within the tempering valve, ensuring the correct ratio of hot to cold water is being let through, and a tempering valve usually controls the temperature within ±3%. This video explains the workings of a tempering valve:

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‍Tempering valves and TMVs (thermostatic mixing valves) get mixed up regularly, and they do have some similarities due to the fact they both mix hot/cold water together, but the main differences between the two are :

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The way that a tempering valve works is not as complex as it may appear. A tempering valve contains a temperature-sensitive element, whose job is to focus on adjusting the mix of hot/cold water depending on:

One of the little additions to ensure that the water being used in your home is at the correct temperature at all times is a tempering valve. If you haven’t heard of them before, or aren’t sure how they work, you are not alone! That is why our hot water experts have collected some information to help you out – if you have any questions, give Brisbane Plumbing and Drainage a call on 1300 616 203 and we would be happy to assist further.

When you think about it, many of us really do take hot water for granted. We turn on our hot water tap and water at the correct temperature is released from the faucet almost every time and when it’s not, we are pretty annoyed about it… just think about when cold water comes out of the showerhead when you turn on the hot tap.

If you have any further questions regarding tempering valves or would like to arrange for one of our qualified Brisbane plumbers to check a tempering valve in your home, give Brisbane Plumbing and Drainage a call on 1300 616 203 and we can help. ‍

Queensland Government (Department of Housing and Public Works – Hot Water System Requirements): https://www.hpw.qld.gov.au/construction/Sustainability/SustainableHousingLaws/Pages/ElectricHotWaterSystemReplacement.aspx