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  • Users: LeitoGM
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  1. LeitoGM

    Undersize motor

    Good Day All, I've been trying to research the effects of having an undersized motor on a pump with some luck, but I would like a second opinion. Would the pump maximum flow/pressure capacity decrease? or would the motor run at a higher capacity but draw a lot more current (than practical) as a...
  2. LeitoGM

    Pump possible cavitation problem

    Hello All, So, I was informed that putting a wall mount heat exchanger that consists of a motor, pump, filter and a heat exchanger that runs at 8.5 gpm would cause cavitation of the pump, since the gearbox only holds 4 gallons of oil (plus the oil that would compensate for the volume of the new...
  3. LeitoGM

    Pipe Material

    Happy Monday All, I need to asses the integrity of a 10 meter long 10 inch pipe (since it is a dead leg). However, after months of research, we have been unable to determine its origin (MATL). As a result, What would be the best method to determine the pipe's material and WT? are the any...
  4. LeitoGM

    Material Dual Certification

    Hello, The Canadian company I am currently working for has all their piping Material as "grades" when looking back at ISO drawings. I am tasked with installing and purchasing two slip-on valves in order to replace the weld neck flanges (Grade 248, CatI) in the field. When i requested quotes...
  5. LeitoGM

    Above Grade and Below Grade

    Could someone please explain and define: 1. Above Grade Pipe 2. Below Grade Pipe Thank you, LeitoGM
  6. LeitoGM

    Hydro Test and Pipeline Design

    Good Day Everyone, 2 simple questions: - What determines the hydro test pressure of a spool section? I keep ready 1.5 time the design pressure, could someone elaborate on that? - If there is a TOL fillet welded on the middle of the pipe, how would you carry on a hydro test? Thank you
  7. LeitoGM

    Pipe Category and Hydrotest

    Hi All, I am new in the piping design world, and I was asked to design a spool with a hydrotest package for a gas line operating at 1,200 psi at a north region in Canada. I choose the following materials for the spool: · The pipe can be a NPS 1 XS A-106 (WT 0.133 in) · A NPS 2: NPS 1 reducer...

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