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
01.09.1994
Sonstige
Keine Angabe
Englisch
Flexible Wedge Seal for Ball Valve
Online Contents | 1994
Ball valve offers more consistent seal
Online Contents | 2009
Differential Pressure Helps Seal Ball Valve
NTRS | 1985
|