CSGO

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סҳ ڰɭ CSGO Ʒܻ Ӫͷ Դ ϵ
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General knowledge and structure principle of solenoid CSGO selection
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General knowledge and structure principle of solenoid CSGO selection
1 Applicability
The fluid in the pipeline must be consistent with the medium calibrated in the selected solenoid CSGO series.
The temperature of the fluid must be less than the calibration temperature of the selected solenoid CSGO.
The allowable liquid viscosity of solenoid CSGO is generally below 20 CST, which should be noted if it is greater than 20 CST.
ZS, ZCW, ZQDF, ZBSF should be selected when the maximum pressure difference of pipeline is less than 0.04MPa, ZCM series direct acting type and step-by-step direct acting type; when the minimum working pressure difference is greater than 0.04MPa, the pilot type (differential pressure type) solenoid CSGO can be selected; the maximum working pressure difference should be less than the maximum calibration pressure of the solenoid CSGO; generally, the solenoid CSGO is one-way operation, so pay attention to whether there is reverse pressure difference, if there is check CSGO installed.
When the fluid cleanliness is not high, the filter should be installed in front of the solenoid CSGO. Generally, the cleanliness of the medium required by the solenoid CSGO is good.
Pay attention to the diameter of flow aperture and connecting pipe; solenoid CSGO is generally controlled by two position switch; if conditions permit, install bypass pipe to facilitate maintenance; when water hammer occurs, adjust the opening and closing time of solenoid CSGO.
Pay attention to the influence of ambient temperature on solenoid CSGO
The power supply current and consumed power should be selected according to the output capacity. The power supply voltage is generally allowed to be about 10%. It is necessary to pay attention to the higher VA value during AC starting.
2 Reliability
Solenoid CSGO is divided into two types: normally closed and normally open; the normally closed type is generally selected, which is powered on to open and power off to close; however, when the opening time is very long and the closing time is very short, the normally open type should be selected.
Generally speaking, the factory belongs to the type test item. To be exact, there is no professional standard for solenoid CSGO in China. Therefore, the selection of solenoid CSGO manufacturer should be cautious.
In general, select a series of high-speed direct action frequency when the caliber is very short.
3 Security
General solenoid CSGO is not waterproof, please choose waterproof type when condition is not allowed, our company can make it to order.
The maximum nominal pressure of the solenoid CSGO must exceed the maximum pressure in the pipeline, otherwise the service life will be shortened or other accidents will occur.
All stainless steel type should be selected for corrosive liquid, and ZDF solenoid CSGO should be selected for strong corrosive fluid.
Explosion proof products must be selected for explosive environment.
4 Economy
Many solenoid CSGOs can be used in common use, but the most economical products should be selected on the basis of meeting the above three points.

Structure and principle of solenoid CSGO
1 Direct acting solenoid CSGO
There are normally closed type and normally open type. When the coil is powered on, electromagnetic force is generated to make the moving iron core absorb with the static iron core to open the CSGO directly, and the medium is a path; when the coil is powered off, the electromagnetic force disappears, the moving iron core is reset under the action of spring force, and the CSGO port is closed directly, so the medium is blocked. It has the advantages of simple structure, reliable action and normal operation under zero pressure difference and micro vacuum. The normally open type is the opposite. For example, the solenoid CSGO with flow diameter less than 6. (Figure 1 is a typical structural diagram)
2 Step by step direct acting solenoid CSGO
The main and secondary pressure differential CSGO is directly opened by the main and secondary solenoid CSGOs. When the coil is electrified, electromagnetic force is generated to make the moving iron core and the static iron core close. The pilot CSGO port is opened and the pilot CSGO port is set on the main CSGO port, and the moving iron core is connected with the main CSGO core. At this time, the pressure of the upper chamber of the main CSGO is unloaded through the pilot CSGO port. Under the action of pressure difference and electromagnetic force, the main CSGO core moves upward and the main CSGO medium flows. When the coil is powered off, the electromagnetic force disappears. At this time, the moving iron core closes the pilot CSGO hole under the action of self weight and spring force. At this time, the medium enters the upper chamber of the main CSGO core in the balance hole, which makes the pressure of the upper chamber rise. At this time, the main CSGO is closed under the action of spring reset and pressure, and the medium is cut off. The structure is reasonable, the action is reliable, and it works reliably at zero pressure difference. Such as: ZQDF, ZBSF, ZS, ZCW, etc. The second is a typical structural diagram
3 Indirect pilot solenoid CSGO
This series of solenoid CSGO is composed of pilot CSGO and main CSGO core to form channel combination; normally closed type is closed when it is not powered on. When the coil is energized, the generated magnetic force makes the moving iron core and the static iron core close, and the pilot CSGO port opens, and the medium flows to the outlet. At this time, the pressure in the upper chamber of the main CSGO core decreases, which is lower than the pressure at the inlet side, forming a pressure difference to overcome the spring resistance and then move upward, so as to achieve the purpose of opening the main CSGO port and the medium flows. When the coil is de energized, the magnetic force disappears, and the moving iron core is reset and closed by the spring force. At this time, the medium flows into the balance hole, and the pressure in the upper chamber of the main CSGO core increases, and it moves downward under the action of the spring force to close the main CSGO port. The normally open principle is the opposite. Above caliber, such as CZ, etc. (Figure 3 is a typical structural diagram)
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