Precautions for explosion-proof solenoid valves

Apr 10, 2023

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The fluid in the pipeline must be consistent with the medium calibrated in the selected solenoid valve series model.
The temperature of the fluid must be lower than the calibration temperature of the selected solenoid valve.
The allowable liquid viscosity of the solenoid valve is generally below 20CST, and it should be indicated if it is greater than 20CST.
Working pressure difference, when the maximum pressure difference of the pipeline is less than 0.04MPA, direct-acting and step-by-step direct-acting types such as ZS, 2W, ZQDF, ZCM series from Ningbo Airpack Company should be selected; when the minimum working pressure difference is greater than 0.04MPA, it can be Select the pilot-operated (differential pressure) solenoid valve; the maximum working pressure difference should be less than the maximum calibration pressure of the solenoid valve; general solenoid valves work in one direction, so pay attention to whether there is a reverse pressure difference, and if there is a check valve installed.
When the cleanliness of the fluid is not high, a filter should be installed in front of the solenoid valve. Generally, the solenoid valve requires better cleanliness for the medium.
Pay attention to the flow aperture and connection diameter; the solenoid valve is generally only controlled by two switches; if conditions permit, please install a bypass pipe for easy maintenance; when there is water hammer, it is necessary to customize the opening and closing time adjustment of the solenoid valve.
Pay attention to the influence of ambient temperature on the solenoid valve
The power supply current and power consumption should be selected according to the output capacity, and the power supply voltage is generally allowed to be about ±10%. It must be noted that the VA value is high when the AC is started.

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