National standard ball valve use and role
1. Truncation: Mainly used to cut off or turn on the media stream. Including gate valves, globe valves, diaphragm valves, plug valves, ball valves, butterfly valves, etc.
2. Adjustment: Mainly used to adjust the flow rate and pressure of the medium. Including regulating valves, throttle valves, pressure reducing valves, etc.
3. Check: Used to prevent media from flowing backwards. Includes check valves of various constructions.
4. Split: Used to dispense, separate or mix media. It includes distribution valves and traps of various structures.
5. Safety: For overpressure safety protection. Includes various types of safety valves.
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