Why Are 2-Way 2-Position Solenoid Valve Parts So Difficult to Produce?

Why are 2-way 2-position solenoid valve parts so difficult to produce? Compared with most machine products, there are relatively few, which is mainly because the difficulty of this type of part itself is not small. Although this kind of valve has few core parts and a relatively simple structure, most solenoid valves are finely made and look rough on the outside, appearing like a very ordinary thing.

In fact, for the sealing point of a valve, the three degrees of its seal (flatness, smoothness, and strength) are very highly demanded. A seal composed of two sealing parts must be zero-to-zero to ensure zero leakage in the air tightness test. Because of its non-uniformity, zero-to-zero must be guaranteed, so this kind of high requirement for a semi-closed 2-way 2-position solenoid valve is a major technical problem in production. Valve testing and inspection

The second category of pressure vessels are the main opening, closing, and regulating components, while the second category has many different application environments, such as: high pressure, high temperature, low-temperature hydrogen production, flammable and explosive substances, and strong corrosion. However, the testing and inspection standards for valves are difficult to meet the same requirements. Many international and Chinese valve testing standards use water vapor or water as the raw material and are carried out near room temperature. This is the most basic safety issue, because an air-conditioning solenoid valve, after strict testing, may still cause a safety accident due to the selection of raw materials, the quality of the casting, and the sealing performance. No wonder some experienced valve professionals are becoming more and more afraid and more and more worried.

After witnessing the valve manufacturing process, do you feel shocked? An eye-opener! This seemingly simple valve — even the production process of a 2-way 2-position solenoid valve manifold, which is a particularly simple one — is quite troublesome. It can be seen that these are actually not so simple, and the energy and difficulty consumed are very great. Fortunately, our country has already made no small technical achievements, and the effect is still quite good.