Manufactured valves must undergo various performance tests, the most important of which is pressure testing. Pressure test is to test whether the pressure value that the valve can withstand meets t...
With the arrival of the first rain and snow in winter, the temperature dropped sharply. In this severe cold, the front-line emergency repair personnel of the Municipal Guokong Water Co., Ltd. brave...
There are many kinds of butterfly valves, and there are many classification methods.
1. Classification by structural form
(1) concentric butterfly valve; (2) single-eccentric butterfly valve; (3) d...
The check valve designed, manufactured, produced and tested according to the American standard is called the American standard check valve, so what is the standard size of the American standard che...
1. The stomata
This is a small cavity formed by the gas that the metal solidification process does not escape inside the metal. Its inner wall is smooth and contains gas, which has a high reflectiv...
Gate valves are an important component in a variety of industrial processes, providing a means of controlling the flow of liquids and gases. They are available in a variety of designs, including op...
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