Control valve with ball segment
This segment ball control valve adopts rotary segment ball plug. Driven by pneumatic diaphragm actuator, it receives 4‑20mA signal to modulate flow, pressure and level. It features large flow capacity, compact structure, good anti-cavitation performance and excellent sealing. It is suitable for viscous media, slurry, fiber-containing medium, widely used in paper-making, sewage, petrochemical industry.
Manufacturing Range
Size: DN25~DN300; Pressure class: PN16~PN100, Class150~Class600
Body material: WCB, CF8, CF8M
Trim: Segment ball, optional hard facing (Stellite)
Actuator: Pneumatic diaphragm actuator, match with positioner
End connection: Flanged
Design Features
Rotary segment ball structure, high flow coefficient Kv.
Good resistance to slurry, viscous and fibrous media.
Small torque, stable operation.
Tight shut-off, optional soft/hard seal.
Linear / equal percentage flow characteristic optional.
Design Standards
Design & manufacture: IEC 60534, GB/T 17213
Flange standard: HG/T20592, ASME B16.5
Inspection & test: API 598, GB/T 13927