Choke Valve

The operation of a choke valve is generally by a hand wheel device screwing down a stem, which is connected to a "flow limiter" device (for example a cylinder with a hole in it). As the cylinder rises and falls in the sleeved bore, the cross sectional area for flow increases or decreases accordingly. Choke valve occasionally have "full closure" capability.

Further Information
Choke Valves - General Design Criteria
Standard Pressure Class Ratings / End Connections
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