Urgent: How to adjust the displacement of vertical cartridge pumps
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This post was last edited by foam_ZPTK on 2018-8-15 at 12:28. How to adjust the discharge volume of a vertical cartridge pump with a balance disk and balance sleeve; the machine seal was replaced today
Can some expert explain it? I also want to learn *learn*.
Just disassemble and assemble it as it is; it would be best to send a video.
This post was last edited by foam_ZPTK on 2018-8-15 at 12:27. There is a nut on the bearing sleeve used to lift the shaft; by loosening this nut, the shaft drops naturally, and by tightening it, the shaft is lifted to the top. The difference between these two positions represents the total play amount. Then take half of that value to position the impeller at the center of the guide vanes. What was done above is to align the impeller. Do you have a balance disc or a balance drum? It’s best to send a cross-sectional view.
Vertical cartridge pumps generally use a balance drum and a pair of thrust bearings to balance the axial force; some even don’t have a balance drum at all! I don’t know what structure yours has!
First, measure the total stroke distance, then determine the standard value. The adjustment method varies for each pump; our unit uses Haver couplings. After making the measurements, insert the shaft collar onto the Haver coupling and then tighten it. There are also those adjusted via coupling threads