Wear and tear in steel/stainless steel pump parts like impeller, sleeves, bowl would cause leakage, reduction in the head height, reduce discharge, increase clearances, etc. How does this wear and tear in such part influence the pump parameters? Case studies, personal experiences, professional opinions are all welcome.
Thanks and best regards,
S.C. Atul
Wear rings provide for a close running, renewable clearance, which reduces the amount of liquid leaking from the high pressure zones to the low pressure zones in the pump. They are commonly fitted in the pump case and on the impeller
These wear rings are lubricated with the fluid being pumped. Eventually they will wear. Tolerances open and more liquid passes from the discharge end back to the suction end of the pump. The rate of wear is a function of the pumped liquid’s lubricity. When the wear is excessive, the pump suffers degradation in its performance. This is particularly true with small pumps running at high speed. The strict tolerance in the replaceable wear rings governs the efficiency of the pump. When the pump goes to shop, these wear rings should be changed.
Pump efficiencies are certainly important to any well site or office personnel trying to run energy-efficient operations. Cavitation damages the pump housing and over time can cause your pump to fail because operating your pump too far off BEP causes an imbalance in the forces inside of your system, which wears down your system. Think of the flow rate of the fluid in your system.
Have a look at these articles it outlines some of the most important considerations when designing a pump system and offers tips on looking for specific features.
https://www.hydraulicspneumatics.com/fluid-power-basics/article/21884136/engineering-essentials-fundamentals-of-hydraulic-pumps.
https://www.energy.gov/sites/prod/files/2014/05/f16/pump.pdf
Hi good day, May I know what is the affect of stroke length and stroke rate towards maintenance of metering pump?
**Larger plunger diameter @ Stroke length @ SPM will affect the wear and tear?
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