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TOPIC: Pump Piping

Pump Piping 2 years 8 months ago #9104

  • Anton
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Here's a good article explaining reducer placement / orientation at pump suctions, and why the used to be confusion around it.

Eccentric reducers and straight runs of pipe at pump suction

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Pump Piping 1 year 9 months ago #9229

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The placement of reducers at pumps - Flat on top / flat on bottom, is dependent on whether the liquid source is above or below the pump.

- If you're the smartest person in the room ... you're in the wrong room.
Last Edit: 1 year 9 months ago by Anton.

Pump Piping 2 years 8 months ago #9105

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Supports

It is recommended to provide adjustable type supports in suction and discharge piping for pump alignment purpose.

Y-type strainers

In order to improve access for cleaning, Y-type strainers for horizontal suction pipe should be installed pointing downwards or at an angle of maximum 45 deg (check bolt holes quantity) from vertical. Install Y-type strainer away from the pump if located on vertical suction pipe.
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Pump Piping 1 year 9 months ago #9230

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Can't forget about a pump's vibration and the effect on adjoing piping. I recently completed a project that involved the evaluating the repeated failure of airlines supporting a solenoid for AOV control. The repeated failure caused the AOV to change positions and introduce system transients. Copper air tubing supporting the solenoid seemed to be right in resonance with the system vibration.

Turned out the fluid pulsations from a 3-piston positive displacement pump (75 gpm @ 2100 psi) were shaking the system.

Ended up replacing the copper air tubing with a short Sch 80 threaded stainless nipple. Quick fix mitigated failures the plant had been living with for years. Always amazed how the simplest fixes can have the biggest impact.

Technical Details: www.xceed-eng.com/preventing-fatigue-failures/

Pump Piping 1 month 3 weeks ago #9335

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There is only one reason, safety is number one priority to setup everything and by mistake have any leakage then its not good for your health

Ayyurviva www.ayyurviva.com/gyno-comfort
Ayyurviva
Last Edit: 1 month 3 weeks ago by ravisharma20.

Pump Piping 1 month 1 week ago #9339

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If going out to dimension anything connected to or branching from a pump remember that the pump and or base may not always be square to the surrounding structure. We gather all of our own dimensions. we don't rely on a survey crew or laser scans. So step back and capture everything around that pump. Obstructions, drains, conduit trays you name it.
If you're doing a piping reroute or replacement to a pump and the pump itself is getting replaced, WAIT till the new pump is dialed in and completely installed before taking any dimensions.
Obtain cut sheets of the new pump.
If the spools are tricky/ odd degrees coming off the nozzles then see if tack welding the tie in flanges is acceptable for better field fit up as to not put stress on the pump nozzles.
If I can think of anymore I'll come back and add.
I have to get back to work!
Take Pride
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