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  1. jouleflow

    pressure requirement to give correct flow through orifice

    Thanks LittleInch I now have enough info to present to my client. regards Greg
  2. jouleflow

    pressure requirement to give correct flow through orifice

    Thanks LittleInch thanks for your reply. You have confirmed half of my calcs with the flow you quoted. Luckily the flow is 60 l/min or 1 l/sec this easily equates to a flow through a 1 cm sq area as 10 m/s or 36 km/h. With a 1/4" dia aperture being approx 33 mm sq it increases the flow by...
  3. jouleflow

    pressure requirement to give correct flow through orifice

    Thanks 3DDave the link is great but the maths are beyond me. Would it make a difference if I said the pipe bore was 1/4" diameter @ 100mm long instead of an orifice?
  4. jouleflow

    pressure requirement to give correct flow through orifice

    Hi, this is my first post please bear with me if it has been asked before. Is there a formula that will give me a reasonable estimate for: What pressure is required to send 60 litres / min of standard hydraulic oil through a 1/4" diameter orifice? Thanks Greg.

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