GWC Valves

All new innovative
Tempering & Thermostatic valve solution

Designed in Australia to be reliable, easy to install and have an aesthetic visual footprint.

GMW-LHS 600x600

GWC Tempering Valve

The innovative all-in-one GWC Tempering Valve

The GWC Tempering Valve has been designed to allow a seamless integration whilst providing an aesthetic visual footprint.


GWC Thermostatic Mixing Valve

Faster, easier Thermostatic Mixing Valve

The GWC Thermostatic Mixing Valve has been designed to be robust, reliable and allow a seamless integration with an aesthetic visual footprint.

Proud to be a

Winner of

Good Design Awards


The GWC Thermostatic Mixing Valve

The fastest, easiest and safest way to stop Legionella

Legionella bacteria in a water system can lead to a risk of people contracting Legionnaires' disease. This is a serious form of pneumonia that can have fatal consequences.

Legionella grows and multiplies in a building water system. Water containing Legionella can spread in droplets small enough for people to breathe in.

What kills Legionella?

It needs to live in a temperature range of between 20 and 50˚C, above 50˚C it will start to die off. Flushing your system with hot (above 60˚C) water will kill off Legionella.

The GWC TMV makes this system faster and easier than ever before.

Why is the GWC TMV your first choice?

  • Flush hot and cold water systems at the same time
  • No extra or replacement parts required
  • Can easily be part of routine maintenance

How to flush your water system to kill Legionella

  1. Isolate the hot and cold water valve
  2. Remove cover cap and cover, followed by the valve cartridge. Then insert the blanking plug with the screws provided.
  3. Turn the hot water valve on only and run the hot water for at least 5min
  4. Insure all tempered and cold taps are turned on downstream.
  5. No extra replacement parts required to complete this procedure
  6. Can easily be part of routine maintence

Why buy GWC Valves?

One piece

Traditional tempering valves are made up of multiple fittings to complete installation. The GWC Valve is simple and functional with no additional materials required.

Easy installation and testing

The GWC Valve can be installed at the pipe installation stage, where it can be pressure tested with the provided test cap.

Installs correctly every time

The functional design of the GWC Valve removes the possibility of human error as it can only be fitted one way.

Safer and more reliable

The GWC Valve is engineered to incorporate extra fail-safe seals and cannot be removed.


Due to its compact size and design, the GWC Valve can be placed behind walls or cabinets, creating discrete options for installation.

Fully serviceable

Meets all regulations and codes.

Find out more

See a full list of features and specs.

Get in touch with us about a GWC Valve

Have a question?

Contact the valve designer using the form below.

Distributed by

The Couta Group Pty Ltd

Sales & Warehouse
11A Metrolink Circuit Campbellfield
Victoria, Australia 3061
Ph. 03 8405 3386
Fax. 03 8405 3387

GWC Valve
Developed by

GWC Valves


International Publication Number:
WO 2020/028937 A1
TM 2025880
TM 2025881
TM 2025884

GWC Valve
GWC Valve
GWC Valve
GWC Valve