Knowledge

Valve packing is a contact seal and its mechanism relies on maintaining a very small gap between two surfaces, just like with every other seal. In addition, a force is required tha

1. Before installing the flange butterfly valve, check that there are no missing parts of the pneumatic butterfly valve, the model is correct, check the valve body for no debris, a

On process pipelines or equipment, due to factors such as the nature of the medium, the environment of use, the frequency of operation, and the quality of the product, various fail

1. Repair method When the valve core is detached and cannot be cut out, the valve cover, the valve stem, the copper sleeve, the packing and the gland can be changed without the

For the installation of spring-loaded safety valves, the first thing to note is that before installing the safety valve, the sealing performance must be tested. If the safety valve

1. Under what circumstances does the safety valve need to be verified? (1) Long-term storage or before the first use (2) Regular calibration (3) Valves with severe damage

1. Sulfuric acid: As one of the strong corrosive media, sulfuric acid is a major industrial raw material that is very common. Sulfuric acid with different concentration and tempera

Check valves, which allow fluid to flow in one direction but prevent it from flowing in the other, are available in a wide range of styles. The variety most appropriate for your pr