Introduction to the basic knowledge of stop valve

Stop valve is a kind of common valve in Yuhuan valve manufacturer. It mainly consists of valve body, bonnet, disc, stem, packing, gasket and operating device.

The stop valve has many advantages. In the process of opening or closing, the friction between the disc and the sealing surface of the valve body is smaller than that of the gate valve, so it is wear-resistant. The opening height is generally only a quarter of the valve seat diameter, so it is much smaller than the gate valve. Generally, there is only one sealing surface on the valve body and disc, so the manufacturing process is relatively good, easy to maintain, and online maintenance can be realized.

However, the disadvantages of the stop valve can not be ignored, the main disadvantage is that the flow resistance coefficient is relatively large, so the pressure loss is large, especially in the hydraulic device, the pressure loss is particularly obvious.