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  • Users: jack880
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  1. jack880

    Simple gravity question

    Hi. I have a water tower,and i need to install a valved pipe as shown in the sketch to allow me to take samples of the water. How can I size the pipe to get the flow I need from gravity? Is it as simple as plotting the system curve for the outlet pipe and the flow will be whatever flow...
  2. jack880

    Control valve - flow and pressure

    Hi. I have a flow from a pump, and soon after the pump discharge want to be able to take off half the flow at times, and regulate the pressure. Is this possible with an isolation valve and single control valve as shown in the attached diagram? Thanks in advance
  3. jack880

    Suction lift

    Hi. I'm designing a system using a Grundfos JP5 suction lift pump. It can be used to lift up to about 5. The suction pipe has to rise out of the reservoir and fall back down to the pump as shown in the sketch. I know that the lift the pumps needs to deal with is 2m + pipe friction losses...
  4. jack880

    Help with system curve/outlet pressure

    Hi I have a fixed speed pump, and want to design a discharge pipe system such that the outlet pressure at the end of the pipe is 0.4 bar at 0.5 m3/hr. If the system curve and the pump curve intersected at 0.5 m3/hr, there would be no pressure left at the end of the pipe - is that right? Do I...
  5. jack880

    Custom properties in BOM

    Hi. I've got some parts which are basically just extrusions. I've used a dimension to define the length of the extrusion. When I create a BOM on a drawing, I want to be able to insert another column that displays the length of the part (i.e. the value of the dimension I used for the...

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