Control valves03

Segmented ball control valve

A segmented ball control valve uses a partial, contoured rotary member to vary flow area. This construction is distinct from a full bored ball and from a butterfly disc. Segment shape, seat, and movement affect flow behaviour, but rangeability, inherent characteristic, capacity, or solids handling must be verified for the actual model rather than inferred from the generic identity.

Application and duty

Rotary flow control using a segment and seat selected from actual sizing

TECHNICAL REFERENCE

Selection summary

Continuous modulation of flow, pressure, temperature or level with the required flow characteristic

Control-valve selection requires capacity sizing plus cavitation, flashing, noise, velocity and rangeability checks; line size alone does not determine valve size.

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