Thermostatic shower faucet valves control how hot and cold water supplies are mixed and adjust to the heat of the water itself, helping to maintain a stable temperature.

The valve has 4 main elements to do this, which we will explain below:

Thermostatic element

This is an element within the valve that is sensitive to the temperature of the water flowing through it. It will increase or decrease in size. This is connected to the piston.

piston

As the thermostatic element expands with heat, the connected piston will pass through the inlets for the hot and cold water flow, reducing the amount of hot water and increasing the amount of cold water, helping to maintain a constant temperature.

return spring

This part of the valve effectively works in the opposite way to the piston. As the thermostatic element contracts as the heat decrease, the return spring will move the piston back through the inlets for the hot and cold water flow, increasing the amount of hot water and decreasing the amount of cold water, keeping the overall water temperature constant.

temperature control

Aside from the shell, this is the part you can see and control. Often shaped like a dial, this allows you to increase or decrease the heat of the water. This manually moves the piston, changing the ratio of hot and cold water flow.

Yuhuan Difeng Brass-Plastics Industry Co., Ltd. is a Chinese Brass Bath Faucets manufacturer, the company specializes in Thermostatic Shower Faucets and other products.