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Do ball sector valves with double eccentricity allows process pressure to open the valve 1

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KevinNZ

KevinNZ

Mechanical
Joined
Jun 12, 2003
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869
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NZ
Hi all

Do ball sector valves with double eccentricity (eccentric rotary plug control valve) allows process pressure to assist with opening the valve?

Seems to me the shaft offset puts a moment on the ball from the shut in pressure. None of the valve vendors sites I looked at mention this.

Picture1_ssrcs5.png
 
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