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 Posted by: pulinmyharout ® 01/29/2004, 16:49:54 Author Profile Mail author Edit Does anybody know how to calculate how much psi a hydraulic pump will put out when driven by a 30 hp engine running at 3600 rpm?

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 Re: Hydraulic Calcs Re: Hydraulic Calcs -- pulinmyharout Post Reply Top of thread Forum
 Posted by: maytag ® 02/03/2004, 21:38:08 Author Profile Mail author Edit formula for hp=psi*gpm/1714*pump efficiency-you may not know what type pump you have-most gear pumps are 80-85% eff.-piston pumps will be 90-95 % eff. although most cylinder calculations will be in terms of force you can use this formula here for cylinder hp by taking bore,stroke and rod size and cylce time all into consideration-hope this helps maytag

 Re: Hydraulic Calcs Re: Hydraulic Calcs -- pulinmyharout Post Reply Top of thread Forum
 Posted by: hnic ® 01/29/2004, 17:11:59 Author Profile Mail author Edit A hyd. pump does not create pressure, only flow. The pressure is the resistance to flow and can vary from zero to rating on the pump. The only reason they give pressure ratings on pumps is that is the amount of pressure before pump breaks. You can get hand pumps that will provide 10000 psi. but it has very little flow.