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For a fraction of the cost, size, and weight of globe control valves, Clarke Valve products deliver precision flow control, minimal cavitation and turbulence, and greater rangeability. Download our latest brochure to learn more.

Clarke Valve Digital Brochure 2021

Rangeability of a control valve may be defined as the ratio of its maximum controllable flow rate to its minimum controllable flow rate.

The Dilating Disk™ Valve far exceeds the rangeability of other valve types, while maintaining a compact design and very low torque requirements.

 1″ Dilating Disk™ Valve versus Ball and Butterfly Valves

1″ Dilating Disk™ Valve versus Globe Valves

 2″ Dilating Disk™ Valve versus Butterfly Valve

 2″ Dilating Disk™ Valve versus Rotary Ball Valves

 2″ Dilating Disk™ Valve versus Globe Valves

 4″ Dilating Disk™ Valve versus Butterfly Valves

 4″ Dilating Disk™ Valve versus Rotary Ball Valves

4″ Dilating Disk™ Valve versus Globe Valves

All of the Specification Sheets for the Dilating Disk™ Valve product line have been compiled in one convenient resource.

Dilating Disk™ Valve Specification Sheets-Booklet

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