Ball valve contains flexible sealing wedge. Wedge flexes around ball at locus of contact, creating effective seal with less force on ball than if hard valve seat were used. Less torque needed to close valve, and smaller actuator used.
Flexible Wedge Seal For Ball Valve
NASA Tech Briefs ; 18 , 9
1994-09-01
Miscellaneous
No indication
English
Flexible Wedge Seal for Ball Valve
Online Contents | 1994
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Differential Pressure Helps Seal Ball Valve
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