Solenoid valves are electromagnetically controlled industrial equipment used in industrial control systems to adjust the direction, flow, speed and other parameters of the medium. It is understood that the solenoid valve is controlled by the electromagnetic effect, and the main control mode is controlled by the relay. In this way, the solenoid valve can be combined with different circuits to achieve the desired control, and the precision and flexibility of the control can be guaranteed.
There are many kinds of solenoid valves. Different solenoid valves play different roles in the control system. The most common ones are check valves, safety valves, directional control valves, speed control valves, etc.
Safe operation - solenoid valve installation instructions:
1. Read the product manual carefully before installation, check whether the product meets the requirements for use, remember the installation points, and prepare for the work.
2. Check whether the parameters of the nameplate are consistent with the parameters of the selected product. The power supply voltage should meet the rated voltage and voltage fluctuation range: AC +10%~-15%, DC +10%~-10%, usually the coil assembly should not be opened. .
3. Before the solenoid valve is connected, the pipe is flushed with a pressure of 0.3 MPa, and the metal powder and the sealing material residue, rust and the like in the pipe are removed.
4, pay attention to the cleanliness of the medium, if the medium is mixed with dust, impurities and other obstacles to the normal operation of the solenoid valve, the filter should be installed in the filter filter screen ≥ 60 mesh.
5. The solenoid valve should not be installed in the low recess of the pipeline. It should be installed in the discharge pipe of the container. Note that it should not be taken out from the bottom of the container, but should be installed at the bottom of the container.
6. If the medium will cause water hammer, then you should choose the solenoid valve with the function of waterproof hammer or take corresponding precautions.
7. The steam inlet valve side should be equipped with a steam trap, and the nozzle should be inclined.
8, the solenoid valve is generally oriented, can not be reversed, usually on the valve body with "→" to indicate the direction of media flow, installation should be in accordance with the direction of the "→" indication, but the company may sometimes be in the vacuum line or special circumstances There will be a proposal to disguise.
9. Installation posture: The electromagnetic coil components of the general solenoid valve should be vertically upright and installed vertically on the horizontal level of the pipeline. If it is subject to space restrictions or working conditions, it must be installed in the pipeline like the building sewer or inverted. Please submit it at the time of order selection. Some products have special regulations, please follow the instructions.
10. When taking over, be careful not to use excessive amounts of sealing material. If the thread is connected, the thread of the nozzle should be kept within the effective length, and the edge of the end half pitch should be chamfered with a trowel. The sealing tape will be wound from the end of the 2 teeth, otherwise the excess sealing tape or adhesive will enter the electromagnetic The inner cavity of the valve, and an accident that interferes with normal operation occurs.
11, the solenoid valve installation should have a certain reserved space for daily maintenance and regular maintenance.
12. When installing, fix the valve body with a wrench or pipe wrench, and then screw on the connecting tube. Do not apply force to the electromagnetic coil assembly to cause deformation, which makes the solenoid valve difficult to work normally.
13. In case of insufficient rigidity of the pipeline or water hammer, please fix the valve before and after the bracket.
14. When using in a frozen place, the pipe must be protected with insulation or a heater should be placed on the pipe.
15. To confirm, there is a leak in the solenoid valve itself and its connection to the nozzle.
16. Check the connection of the coil lead wire, especially the case of three lead wires.
17. Electrical components connected to solenoid valves, such as relays, switches, and contactors. The contacts should not vibrate when the valve is opened, otherwise the work will be unreliable and affect the life of the solenoid valve.
18, the electrical circuit should be connected to the corresponding insurance line, as a protection of the electrical circuit.
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Label: Solenoid valve safe operation: Precautions for solenoid valve installation
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