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  1. redfun

    Could somebody cross check my motor-pump calculation.

    @micalbrch, the initial motor we had was of 50W rating, the new one we have received is of 120 W.( I am assuming ,that when you say, that it is over sized,you are talking about the rating). So our argument has been , if the 50 W motor over heated after two hours of working( and to some extent...
  2. redfun

    Could somebody cross check my motor-pump calculation.

    @micalbrch, I am taking your word on multiplying the end power by 2 ( even though I cross checked and couldn't find the formula to support the same in any text.) It would simply increase the power by a factor of two and even taking any loss factors into consideration, the power would still be...
  3. redfun

    Could somebody cross check my motor-pump calculation.

    @micalbrch , Sorry for the double post, I did try to delete the first one, but didn't know as to how to do that. Now the PD pump is a single acting single cylinder one.We want it it mimic the heart operation as much as possible. As far as the valves are concerned , there is no check valve on...
  4. redfun

    Could somebody cross check my motor-pump calculation.

    We are having a motor-pump set up in our lab, that over heats after pumping water for 2 hours.( Simply because it is was built as a pneumatic set up initially).We want to run the set up over months non stop to check a polymer heart valve. So a new motor was ordered. Now I just need to cross...

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