We have a 1750 rpm 1600 gpm 314 ft HD horizonatl open impeller slurry pump that is eroding impellers every 300-400 hrs. The slurry is bottom ash from a coal plant. I just started at this company and have yet to seen a failed impeller, but I am told that the fins basically erode away to the...
I am looking for some general theory on inline injection pumps. In particular bosch models such as the p7100. Does anyone know where to look? Thanks in advance.
I am looking for a method and explanation to detect broken rotor bars using vibration. Everything I've read indicates to look for Pole pass freq around turning speed or multiples of turning speed. I just don't understand how a broken rotor bar would generate this spectrum. I understand that at...
I don't know if this is the approriate forum, but I'm having a vibration problem on an older Fairbanks Morse Mill Motor. It is an 8 pole 600hp motor that turns at 888rpm. The dominant vibration on the spectrum is present only in the axial direction and is around .3in/s at 2200cpm. This...
I'm attempting to start a condition monitoring program for some backup diesel generators and pumps in our plant. The diesels are all basic inline 6's in the 300hp range @ about 1600 rpm. We currently use a datapac 1500 for our vibration route on the attached pumps. I have been taking spectral...
