Classification of Ball Valves
Oct 19, 2023| Functional classification
1. Bypass valve: The ball valve is usually opened in still water, so a bypass valve is set to first press flat, that is, fill both sides with water;
2. Air valve: When filling with water, remove air and use the float to close the valve automatically; When draining, replenish the air and the float will lower itself;
3. Pressure relief valve: When opening and closing the valve, drain the pressure water between the valve and the sealing cover to avoid wearing the sealing cover;
4. Blowdown valve: Discharges the sewage from the lower part of the spherical shell.
Transmission classification
1. Pneumatic ball valve
2. Electric ball valve
3. Hydraulic ball valve
4. Pneumatic ball valve
5. Electro hydraulic ball valve
6. Turbine drive ball valve