The Influence of Radial Clearance of Slide Valve on Leakage of Solenoid Valve

The main valve of a certain type of solenoid valve is a slide valve. The opening and closing of the valve is controlled by the electromagnet. The performance of the solenoid valve has strict requirements about leakage. The key factor of valve leakage is that the clearance between the valve core and the valve sleeve. If the clearance between the valve core and the valve sleeve is too small, the leakage can be reduced, but the valve became jam easily; if the clearance between the valve core and the valve sleeve is too large, the valve opens and closes smoothly without jam, but the leakage increases. Based on the electromagnetic reversing valve pair, an in-depth analysis of the clearance between the valve core and the valve sleeve is carried out. Under the condition of ensuring that the entire valve is opened and closed without jamming, combined with the maximum leakage required by the product, the minimum and maximum value of the clearance between the valve core and the valve sleeve is given by a series of analyses and experiments.