Why are the inlet and outlet pipes of the high-pressure oil pump bent in this way?
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This post was last edited by htsujm on 2017-1-13 at 13:05. On-site high-pressure oil pump, with an inlet pressure of 2 kgf/cm2 and an outlet pressure of 20 MPa; the temperature is 180°C. The larger pipeline is the inlet, while the smaller one is the outlet pipeline. Why does the inlet pipeline deviate by 45° away from the pump’s axis before becoming parallel to the outlet pipeline? Why not make it 90° straight like the outlet pipeline? What are the main considerations behind such piping design? Please, experts, share your valuable insights!
This post was last edited by xlxuiin on 2017-1-13 08:51 to avoid the guardrail posts. A 45° elbow has less resistance than a 90° elbow.
Designing piping is actually an art form; in many cases, it depends on the skill of the personnel involved in its installation.
It’s not why. It’s the piping single-line diagram that’s wrong. Or the platform diagram does not match the pipeline diagram
Match the main pipe first; its length is not sufficient
It seems like it wasn’t originally designed this way. It was because the pipes collided with the guard posts during on-site construction that it ended up looking so ugly. There’s no theoretical basis for it
It can’t be just a simple piping error; there are so many 45° elbows on the floor! Do all the pump areas have to be equipped with pipelines like this? The thickness described by the poster refers to the inlet side, while 45° refers to the outlet side; it seems that there’s a discrepancy between the images and the description! If it’s convenient for the original poster, could they share a few more current photos for everyone to discuss?
If it’s the guardrail posts that are in the way, why not move those posts aside?
The resistance at 45 degrees is greater than that at 90 degrees.
It might be that the position of the piping in terms of space was considered incorrect; 90 and 45 are both acceptable actually