Vibration issues with your slurry pump might be obvious: your slurry pump shakes like a wet dog, or subtle: you keep losing bearings or seals prematurely and don’t understand why. In either case, vibration can cause a number of problems with your pump that can lead to costly repairs, downtime, and shorter mean times between failure.
The Hydraulic Institute publishes acceptable vibration limits for all vertical, horizontal and submersible slurry pumps. But how do you verify whether or not you are within these limits? A trained vibration engineer/technician can take readings using a vibration analyzer to determine exactly where the problem lies.
If everything seems to check out, then you can start looking at how the slurry pump is running. Sometimes the pump performs differently on-site than when it was purchased from the factory. For example, a slurry pump may have been sized to deliver a much higher design head. This can cause problems with vibration as well as premature failure of the wet end. To check the actual function of the piece of equipment in question, you can install a pressure gauge, or if one is already installed, take a pressure reading.
Using the following formula, the TDH can be easily calculated:
TDH = Hs + (Psig x 2.31/Slurry SG) + 0.00259*GPM²/D4
A flow reading is also needed. If no flow meter is installed, a portable one can be used to obtain a fairly accurate reading. Once the TDH is calculated and a flow reading is available, check the curve shown in the manual to determine the performance of your slurry pump. The best efficiency point will already be marked on your curve.
SO, WHAT DO YOU DO WHEN YOU EITHER SUSPECT OR CONFIRM A VIBRATION ISSUE?
Vibration checks should be a regular part of your preventative maintenance program. If checked for properly, vibration can be a leading indicator of a number of common pump ailments, including:
Read the Slurry pumps maintenance guide to learn how to maintain your slurry pump for optimal performance.
If you feel uncomfortable or have any issues with vibrations in your slurry pumps, don’t hesitate to contact us. As always, we will be happy to help in any way possible. We design and repair slurry pumps to keep your project working efficiently. Talk to Hevvy Pumps today for more information.
If you have any questions on HS Slurry Pump. We will give the professional answers to your questions.