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  1. mrnatural

    Peristaltic Pump pulsation issues

    Micalbrch, the pressure is unknown. We have assumed that since the distance from pump output to the tube, which is at atmosphere, is only about 10' and the required lift is only 2' that the pressure is low. That may be incorrect however. The next time one of the systems is down I'm going to...
  2. mrnatural

    Peristaltic Pump pulsation issues

    Mike, there just isn't enough room to install a bucket wheel of a screw pump. The screw pump would have been an excellent choice when the design was initially done some years ago but I'm stuck with what is and not what it should be. micalbrch The pump does indeed operate at 1,700 RPM but I...
  3. mrnatural

    Peristaltic Pump pulsation issues

    GaTechTheron as I told Mike, we are interested in low shear and the peristaltic fits the bill in that area. And you are correct they don't pulsate like a recip but they have lots more pulsation than the sine or progressive cavity pumps. The kinking doesn't appear to be an issue because the PVC...
  4. mrnatural

    Peristaltic Pump pulsation issues

    Mike the reason for the peristaltic is a need for a low shear pump. The fluid is mostly water with some bugs in it and we don't want to hurt the bugs.
  5. mrnatural

    Peristaltic Pump pulsation issues

    Pulsation is breaking the PVC tubing. We are using a 1/2 HP single lobe peristaltic operating at 1,700 RPM that is moving 10 GPM up 2' to a tube that is at atmospheric pressure. The flow is thru the tube and returns to the pump at the other end. There is only about 10" clearance above the...

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