Questions about pump installation
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1. What does the alignment of on-site pumps include? My experienced teacher said that basically, pumps of the same type and model should be on the same line (checked by pulling wires) ； Try to place the pump in the middle of the foundation. What my master emphasized the most was aesthetics; it feels awkward. In order to place some pumps in the middle of the foundation, the distance between the centers of adjacent pumps ends up not matching what is specified in the drawings. 2. How can one determine the exact value of the pump’s levelness error by placing a frame-type level on the flange? This must be related to the diameter of the pump flange and the length of the base frame of the level, right? But the overall levelness error of the pump isn’t measured in this way, right?
You just started working, right? A key consideration for pump installation is to keep the lines straight, with the pipes horizontal and vertical. The center distance between adjacent pumps does not conform to the drawings; was the marking done correctly during foundation construction? For the alignment of ordinary pumps during installation, three dial indicators are sufficient; a level is not required (for large circulation water pumps).
By “alignment,” the poster is referring to the overall installation alignment of multiple pumps, such as their levelness and overall parallelism during installation, right? ! If that’s the case, your master is right; what matters most here is overall aesthetics, ease of piping installation, and convenience for future maintenance and repair. Additionally: At this stage, there is no need to use a precision instrument such as a frame level for adjusting levelness; a strip level with ordinary precision is sufficient.
Reply to 3# hxlhb Thank you! But how do I read the error values for vertical and horizontal levelness on the inspection documents?
Reply to 2# Power Center, thank you! I just started working! But I don’t know how to use the three dial indicators specifically to measure levelness
Reply to 5# upcdeng: one gauge for radial direction and two gauges for axial direction.