Principles of operation and designation of a solenoid valve.
Any automated process which involves water, steam and other liquid or gaseous substances can’t work without electromagnetic (solenoid) valves. Compressor systems, refrigeration equipment, heating - all this equipment need remote automatic control.
Why do you need a solenoid valve?
To regulate the flow of liquid, gas, steam in pipeline systems. In simple terms, this is an "electric valve" that is triggered by a signal from a control panel or relay. It means, you can remotely enable or disable the flow of the working environment and fully automate this process.
The device of the electromagnetic valve
The main elements of our valves are:
- Solenoid coil in plastic housing with built-in diode bridge. It can work on alternating or direct current (230, 110, 24, 12V). The housing protection class is IP65 (protection against dust and water jets).
- Locking part of the valve with sealing ring, stem, spring and cover. Two steel segments are inserted into the rod cover (cylindrical hollow part) to close the magnetic flux with minimal losses.
- Brass union(body) for soldering, flare nut or threaded connection for pipes.
The principle of operation of the solenoid valve is quite simple. When voltage is applied to the coil in its winding, an electromagnetic field arises that moves the locking rod with a working piston or disk. When the device is disconnected, the rod returns to its original position under the action of a spring. The response time is from 30 to 500 milliseconds. In this case, there is no need to apply any physical effort.
By the method of opening the valves are divided into two types:
- • Normally open - in the absence of current, the stem is open.
- • Normally closed - the rod is closed when there is no current.
In addition, direct and indirect valves are distinguished: the first operate without pressure in the system and are used when the working medium consumption is small; For the operation of the second, a minimum pressure drop is required at the inlet and outlet.
Offenwanger solenoid valves: purpose, advantages
The products of the German company Offenwanger are widely used in the chemical, food, medical, machine and instrument-making industries, heat engineering, water supply systems. The company has been working since 1992 and now specializes (development and production of electromagnetic valves) - this is a serious competitive advantage over other brands.
Features of the Offenwanger solenoid valves:
- Modular design. The valve can be dismantled to replace the parts and even change its configuration if you need another flow or pressure in the system.
- Phenomenal reliability. Before entering the market, each valve is checked at the factory.
- Economy - the rated power of the coils is 6-10 watts.
- Wide operating pressure ranges from 0 to 300 bar.
- Noiseless Operation – The valve does not hum and operates without vibration.
Buying solenoid valves from us, you provide yourself with reliable and durable locking equipment. The company's German quality, service, direct delivery from the factory in Germany and comparatively low prices - we offer a maximum and ask for a minimum. Call our managers - they will help you choose the right model for your requirements.