top of page


NEXX Plumbing expert plumbers keep your operations running as efficiently and smoothly as possible and prevent small and large scale problems from occurring.

A Thermostatic Mixing Value (sometimes called a TMV) is a valve that blends hot water with cold water to produce even temperature thus ensuring there is constantly safe outlet temperature, preventing scalding.

Thermostatic Mixing Valves are used to protect people especially customers, the elderly, people with a disabilities and young children, from the scalding effects of water that is too hot. They also reduce the risk of disease spreading in your water supply as hot and cold is mixed at the right temperature just prior to coming out of the tap.

An extremely important function of a TMV is if the supply of cold or hot water is lost, the water flow will shut down immediately, preventing scalding, burning and dangerous reactions from moving too quickly away from a too hot or too cold water stream resulting in injury.

At NEXX Plumbing we provide correct installation, maintenance and annual testing of your Thermostatic Mixing Valves (TMVs) to ensure that they are operating correctly, protecting you, your business and your customers and staff. Our highly experienced team are qualified to service and carry out an annual TMV testing and maintenance program on all forms of TMV’s.

TMV Testing Requirements (AS4032.3)

  • Replacement of thermostat and o-rings every 5 years

  • Inspection and maintenance at least every 12 months

bottom of page