Control segment valve (V-ball)
This pneumatic V-segment ball control valve adopts rotary V-notch ball core. Equipped with diaphragm actuator, valve positioner and air filter regulator. It features excellent equal-percentage flow characteristic, good cutting performance, high adjustability, suitable for medium with fiber, slurry and granular materials, widely used in petroleum, chemical, paper-making and water treatment process control.
Manufacturing Range
Size: DN25~DN300; Pressure class: PN10/PN16/PN25/PN40, Class150~Class300.
Body material: WCB, CF8, CF8M.
Seat: Metal hard seal / PTFE soft seal.
Actuator: Pneumatic diaphragm actuator, single-acting (fail open / fail close).
Accessory: Electro-pneumatic positioner, air filter regulator, limit switch.
Design Features
V-notch ball, sharp edge provides shearing function, anti-blocking for slurry & fiber media.
High turndown ratio up to 100:1, equal percentage flow characteristic.
Compact rotary structure, small flow resistance.
Metal seal version for high temperature, high pressure; soft seal for tight shut-off.
Can be fitted with HART intelligent positioner, 4-20mA signal control, with valve feedback.
Design Standards
Design & manufacture: GB/T 17213, IEC 60534
Flange: HG/T20592, ASME B16.5
Inspection & test: GB/T 13927, API 598
Flameproof available: Ex d IIC T6