Knowledge

The surface of the workpiece shall be carefully treated before it is sprayed or coated (paint or other anticorrosive materials), which is called pretreatment.

Most of the medium in the chemical production plant has the characteristics of large toxicity, inflammable, explosive and corrosive, the working conditions are complex and harsh, o

As the valve industrial,we sometimes will use Bronze/Brass material to make the valve, and Bronze,Brass and Copper , otherwise known as the “Red Metals”, may look the same initiall

Plug valves can be used more easily. Ball valves, on the other hand, have a space between the body and the ball. When the ball valve is installed and the plant is closed for mainte

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