An orifice in hydraulics or pneumatics is generally used as a flow restrictor and also in pressure controls.
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Thanks for your kind comments, Chris. As long as we know people find value in material, we'll keep it coming.
Thanks for commenting, Chris. I hope you're right because an air powered car would be great for the environment and the pneumatics industry.
It would be interesting to see a study about how...
Thank you for your comment. You are correct, of course. The second multiplication sign should've been a division sign. I have since corrected the text.