When selecting a solenoid valve, we usually first consider the sealing performance of the solenoid valve. Customers attach great importance to the sealing performance of the solenoid valve.What is sealing?Seal detectorWhat is its application on solenoid valves?

Generally, the ability of the sealing components in the solenoid valve to prevent medium leakage is called the sealing performance of the solenoid valve.Customers are purchasing electromagneticWhen choosing a valve, sealing as a technical parameter is also one of the important selection criteria.In a general sense, we say that the sealing part of the solenoid valveParts mainly refer to the joint between the valve stem and the stuffing box, the connection between the valve cover and the valve body, and the connection between the two sealing surfaces of the opening and closing parts and the valve seat.

Usually we often talk about internal leakage and external leakage. External leakage is usually the first two sealing parts leaking, and internal leakage is the last situation.Leakage, to put it bluntly, internal leakage means that the valve is not closed tightly, and external leakage means that the medium leaks from the inside of the valve to the outside of the valve.Both leakage situations affect electromagneticValve work, and even accidents sometimes occur.Internal leakage mainly affects the valve's ability to cut off the medium, so in cut-off valves, internal leakageWhether it is good or bad is an important criterion for judging the quality of the valve.External leakage will cause waste of media and pollute the environment.Especially when the medium is toxicWhen it is chemical, radioactive or flammable and explosive, leakage is absolutely prohibited, so the selection of this type of solenoid valve is even more important.Yes, reliable sealing performance must be required.

From the above, we can see how important the sealing performance of the solenoid valve is. How should its tightness test be done?

If the traditional water immersion test method is used to detect the sealing of the solenoid valve, there will be many defects, such as possible secondaryContamination, extreme reliance on human eyesight and other adverse factors, the solenoid valve sealing detected is reliable.It is recommended to use seal checkIt is more appropriate to use measuring instruments for testing.The air tightness test developed by Hirays Technology uses compressed air as the testing medium, and the testing cost isLow, no secondary pollution, high efficiency.Just make a simple detection tool.Then put the solenoid valve into the tooling and you canAfter starting to detect the leakage value of the solenoid valve, the sealing performance of the solenoid valve can be obtained based on the leakage value.