Have you heard of pneumatically actuated ball valves?
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Has anyone heard of pneumatically controlled ball valves? What other types of pneumatically controlled valves exist besides butterfly valves?
If adjustment is needed, the properties of ordinary balls may not be suitable; V-balls or similar can be used:loveliness:
In addition to butterfly valves, pneumatic valves also include single-seat, double-seat, ball valves, and so on.
In addition to those mentioned above, there are also pneumatic eccentric rotary valves, sleeve valves, etc.
A pneumatic ball valve is a rotary valve with a 90° rotation angle; it features excellent sealing performance, a high flow coefficient, a low flow resistance coefficient, a simple structure, a long service life, and is easy to maintain. The GT series of cylinder-type actuators, manufactured using advanced foreign technologies, are available. For switch-type models, an electromagnetic directional valve, limit switches, and a gas source treatment unit are required for operation; for control-type models, a valve positioner and a gas source treatment unit are sufficient. Ball valve actuators are available in both single-acting and double-acting versions. These products are widely used in the system control of industries such as chemicals, petroleum, light industry and textiles, power generation, food and pharmaceuticals, refrigeration, and papermaking
Classified by structure, control valves include ball valves; in addition to butterfly valves, there are also single-seat, double-seat, sleeve, angle, three-way, and eccentric types. Select the appropriate control valve based on the process parameters and operating conditions.
LZ is from the process field and may not be very familiar with control valves; it is recommended that you find a book on control valves to read – it will be helpful to you. There are many on the forum; give it a try!
Does the poster mean a pneumatically controlled V-ball valve? There must be O-balls used for cutting off
Generally, regulating ball valves are V-type ball valves, while O-type ones are used for cutting off flow. www.doooyi.com
If an O-type ball valve is used for regulation, a positioner is required
I’ve heard that pneumatic solenoid valves are also good options. http://www.taivalve.com