pipeline networks for transmission to a variety of water distances, petrochemical liquids or gases play great importance, being vital arteries for housing, production and agricultural areas of activity. Their integral part is the locking reinforcement of the wide principle of action, which include cast-iron electromagnetic valves , performing the function of remote automatic control. With their help, it is possible to carry out a dosed supply of a flow transmitted through the pipeline for a certain unit of time.
device and circuit scheme
The basis of the solenoid (electromagnetic valve) is based on the principle of the device of a classic electric coil. This allows him to open or close the channel to pass the working flow in automatic mode, depending on the type and modification:
The production of electromagnetic valves is carried out at domestic enterprises and complies not only to the established standards of GOST, but also to existing international standards. Their fundamental diagram of the technical device includes:
- The cast -iron case (depending on the purpose can be made of brass, steel or polymers).
- Solnoid device - an induction coil with a core installed in a completely tight housing. The primary and secondary winding of the coil is made of high -quality technical copper.
- The seal between the body and the coil - provides additional tightness, can be used rubber, polymers, silicone, heat -resistant rubber.
- Various components - a spring, a rod made of high -strength stainless steel, a plunger.
The installation (dismantling) of the electromagnetic valve is carried out in the absence of a working pressure in the pipeline, with the voltage disconnected. For a more reliable and long -term operation of the device, it is recommended to flush the system from accumulated small fractions and pollution.
