During the production of pneumatic flanged ball valves, many factors will directly affect the quality of pneumatic flanged ball valves. In order to ensure its quality, what requirements should be met during production?
1. Action sensitivity and reliability
Action sensitivity and reliability have special requirements for some throttle valves, safety valves and other valves, and are one of the indicators that need to be continuously optimized.
2. Hoisting force, moment and speed
Generally, there are no strict requirements on the opening and closing speed of valves, but some working conditions have special requirements on the opening and closing speed. For example, some require rapid opening or closing to prevent accidents, and some require slow closing to prevent water hammer, which should be considered when selecting valve types.
3. Flow medium
After the medium flows through the valve, there will be pressure loss, that is, the valve has a certain resistance to the flow of the medium. In order to overcome the resistance of the valve, the medium will consume a certain amount of energy, that is, the flow resistance coefficient.
4. Sealing performance
The sealing performance of flanged ball valve refers to the ability of each sealing part of the valve to prevent medium leakage, which is an important technical performance index of the valve. The contact between the hoist and the two sealing surfaces of the valve seat, the fit between the packing and the valve stem and the stuffing box, and the connection between the valve body and the bonnet.
Therefore, the pneumatic flange ball valve shall meet these requirements during production, so as to ensure its performance and provide reliable guarantee for people’s production.
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