What is a mixing valve?

The

mixing valve is a relatively free term used to describe many devices that combine hot and cold water to form comfortable and safe temperatures. It is most often used to describe the thermostatic mixing valves included as an anti-saving safety device in hot water systems. These safety valves automatically control the hot water temperature and can be centrally located for flow control into all outlets or installed at individual points of use. The term mixing valve can also apply to one -off discharge, manual blender faucets in sinks, baths and showers. These valves have a larger treatment range, but do not offer any scalding and protection of thermal shocks for their own offer. Usually these temperatures exceed 140 ° Fahrenheit (60 ° Celsius), which is hot enough to cause serious shocks and thermal shock. Generally, the safety maximum temperature for water used in domestic systems should not exceed 122 ° Fahrenheit (48 ° Celsius). In many cloudsIt is compulsory that the hot water system outlets are regulated by a maximum of 122 degrees. Therefore, the law may require central thermostatic mixing valves for new hot water installations.

Thermostatic mixing valves have a preset thermostat unit to the desired output temperature. The valve case is equipped with warm and cold inputs and mixed water. The thermostat mechanism is mechanically connected to a moving piston, which regulates the amount of hot water, which allows the valve to the valve according to the outlet temperature. If the cold water pressure decreases significantly or turned off, the valve immediately switches off the hot water supply immediately. This prevents any possibilities that end users in the case of cold water are supped.

The only central thermostatic mixing valve is the most common installation arrangement, although several faucets are available that have a thermostatic control. Is usually inŠak at the main output of the water heater, which then supplies water below 122 °, on manual mixing valves on the bath and showers. This allows the user to preset the flow temperature at will without fear of a sudden increase in dangerously hot water.

Manual mixing valve faucets are still very popular in kitchens and bathrooms. These devices contain the same internal layout and mechanisms as the thermostat blender except manual settings. Manual blends may consist of double -faucet controls or individual one -way controls with a single discharge or mixed water output. Although it is generally very attractive decoration, the manual mixing valve itself does not offer any protection against sudden drops or stopped with touched water. In order to prevent the possibility of broken injury, at least one thermostatic mixing valve should be installed on all hot water systems.