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Q: How do I calculate the approximate output pressure of a water piston ( Answered ,   1 Comment ) Question
 Subject: How do I calculate the approximate output pressure of a water piston Category: Science > Physics Asked by: keenan-ga List Price: \$10.00 Posted: 08 Jul 2005 09:09 PDT Expires: 07 Aug 2005 09:09 PDT Question ID: 541262
 I would like to build a water piston that will significantly increase the output PSI in relation to the pistons input pressure. Is there a basic formula to figure this out? EXAMPLE: Piston cylinder and piston are 12 inches in diameter. The liquid being compressed is water and has a stroke of 3 feet. The output nozzle is 1/4 inch in diameter. Disregarding frictional losses, etc...if I apply a pressure of 100 lbs to the piston head, what will be the resultant PSI at I can expect at the output of the piston? I'd like to experiment with differing cylinder sizes and pressures, so I need a formula to roughly calculate the output with varying input & output parameters. Also, what would be some good websites to take a look at? (remember, I'm no brainchild!) Basis sites that explain fluid dynamics and how to calculate stuff relating to hydrolics and the building of a practical water piston. Subject: Re: How do I calculate the approximate output pressure of a water piston Answered By: redhoss-ga on 08 Jul 2005 13:34 PDT Rated: keenan-ga rated this answer: Thanks for helping me to understand the error of my ways! You were very articulate in your answer & the supporting URL info help me to clearly see the reality of the situation.  