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  • Users: neweng2008
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  1. neweng2008

    Needle valve sizing

    Hi all, I need to size a needle valve that is placed before a flow transmitter on the lube oil inlet line to a bearing. I know the amount of the flow thru this line (1.9 gpm) and also the model I need to choose from is Parker N series. The oil specific gravity is 0.85. my line size is 3/4"...
  2. neweng2008

    Electric motors and drives

    Greetings, I am a mechanical engineer with limited knowledge of electrical equipment. I need to know what is a drive that should be used with the motor I am getting on a pump. I have never seen a drive! What does it do? Thanks.

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