This paper introduces the basic principles of several different valve leakage detection methods, and briefly introduces several different valve leakage detection methods in Chinese patents.

When using bubble method for valve leak detection, fill the valve with leakage gas of a certain pressure and put the valve into the liquid. The gas enters the surrounding liquid through the leak hole to form bubbles. The place where bubbles form is the location where the leak hole exists. It is usually done manually to see if bubbles form.

ZJCLV, a China ball valve factory, specializes in the manufacture of valves. Our valves are of a certain thickness and are manufactured in strict accordance with API standards.