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Hi

If you have a "sleeve" that is covering a hole (or multiple holes) , and this sleeve is just sliding over the holes , acting as a lid. If the differential pressure is 8-9000 Psi , is there any way to calculate the force needed to open the sleeve ? The fluid can be water or oil or gas.

And are there any suggestions on how to minimize the force needed to drag the sleeve to get it open ( even out the pressure ). I would think the sleeve will experience a fluid "lock" of some sort , just before the fluid enters and equallizes.

Would it help to have a REALLY small hole in the beginning ? or grooves

The "holes" are 0,4inch diameter and there are 24 of them.

Thx

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# Big differential pressure when opening sleeve

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