Solenoid valves for water supply (also called "solenoidal") represent a small electromechanical device and are designed to open and close the flow paths of hot or cold water. What is their design and where are they used? You will learn the answers to all these and many other questions from our today's article.
Device
An electrovalve for water consists of two main functional units: an electromagnet (solenoid) and a valve with a through hole. In this case, the solenoid is equipped with a special piston, which is also called the "core". The second functional unit is installed on the disk in order to shut off or open the flow of water. The valve of the device can change its position only by the movement of the core, drawn into the solenoid.
Where is it used?
It should be noted that electrovalves can be used in a wide variety of fields: in gas supply, air conditioning, ventilation, as well as in steam condensate ones. In our case, this device is used in a water supply system, which determines its name “for water”. Why is it so in demand in the economy and industry? Because with the help of an electromagnetic valve, you can remotely control the supply of the required volume of liquid (or gas) at one time or another. Often, these devices ensure the normal operation of boiler facilities, and in everyday life - they meter, mix and deliver the necessary water flows.
Work algorithm
The electric valve for water has the following principle of operation:
- An electric current is supplied to a special electromagnetic coil.
- The magnetic core is drawn into the solenoid.
- As a result of this, the valve opens or closes. Thus, the flow of water flows freely or, conversely, is blocked in the hydraulic supply system.
It should be noted that on almost all devices of this type the core is placed inside a special closed tube. This is done so that during the flow, water does not penetrate the electromechanical system of the valve and thereby does not provoke a short circuit and subsequent failure of the mechanism.
Material
The main material from which the electrovalve for water is made is forged brass or stainless steel. The latter is most often used in devices that interact with aggressive agents, acids and foods. Brass is used to supply ordinary water without the addition of special substances. At the same time, a special heat-resistant epoxy resin is included in the design of this mechanism , which enables the device to regulate the flow of water and steam at temperatures up to 200 degrees Celsius.
Water solenoid valve: price
The cost of such a device is on average from 3 to 5 thousand rubles per unit. The price of some devices can reach the mark of 10 thousand rubles, but such models, due to their high cost, are little used in the field of water supply.