How to Determine a Vertical Pump’s Natural Frequency

August 29, 2017

There are two commonly used testing methods to determine a vertical pump’s natural frequency. The first method is called a startup or coast down. In order to perform this method a tach signal is required for the speed to be tracked.  The pump is started and the amplitude and phase are recorded during start-up and […]






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Having the Vibration Analysis Data Alone doesn’t Fix Anything

March 21, 2017

First and foremost vibration data setups must be properly configured to allow the correct results to be collected thus allowing the analyst to interpret the vibration data for defects. The defect findings should be presented in a manner that the personnel that are responsible for the repair of the equipment now have the necessary information […]






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The Importance of Strobe Lights when Performing Vibration Analysis

February 7, 2017

Strobe lights are an inexpensive tool typically used to determine the operational speed of equipment. Strobe lights should be readily available to vibration analysts and maintenance mechanics. A strobe can be used as a proactive tool for many things. For example, visual inspection of belt damage (slippage, wear, etc), coupling damage, loose components and much […]






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Complementary Condition Monitoring Boosts Reliability

January 10, 2017

As Published by COMPRESSORtech2 Magazine October 2016 issue by Karl Hoffower – Condition Monitoring and Reliability Expert for Failure Prevention Associates Combining ultrasound and vibration sensing adds precision to recip valve analyses Over the past decade, ultrasonic condition monitoring of reciprocal compressor valves has become more widely known. However, it does not seem to be widely used. Ultrasonic testing measures high-frequency sound waves, […]






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Why should you rethink overall vibration monitoring?

October 11, 2016

As Published by Maintenance Technology Magazine August 2016 issue Clinging to a single approach that made economic sense for your plant ‘back in the day’ could be an expensive strategy.” Overall values are the most common measurements and calculations used in vibration analysis. What’s more, some reliability and maintenance programs rely solely on them. The goal […]






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