Maintenance & Reliability
HP Reliability: Grounding-ring technology for variable-frequency drives
HEINZ P. BLOCH, Reliability/ Equipment Editor     Comments? Write:HB@HydrocarbonProcessing.com   Variable-frequency drives (VFDs) provide substantial energy sav..
Iron sulfides-effect on amine plants
Amine plants treating gas containing H2S will have iron sulfides in the system. Here's where they help and hinder plant operation
HP Reliability: How flawed reward systems cost you dearly
In a US trade journal, someone recently observed that "successful lean implementation needs reliable equipment to prevent disastrous consequences. Together, they increase production capacity, decrease..
HP Reliability: How pump installation must differ from the way pumps were shipped
In general, process pump manufacturers are asked to provide pumps as a "set" or assembled package comprising pump, driver and baseplate (Fig. 1). After ascertaining correct shaft separation to accommo..
Case 54: Is it motor vibration or some other cause?
It's not always the motor causing the vibration
Managing costs and incidents in industrial plant equipment
Use this method to allogate limited maintenance resources to the most critical equipment
HP Reliability: More about unreliability, global procurement and you
We quite obviously believe that reading is the key to professional growth and that Mark Twain was right in stating that the man who refuses to read is no different from the illiterate person who canno..
Think power pumps are self-priming? Think again!
Think power pumps are self-priming? Think again!
HP Reliability: Understanding periodic pump switching and parallel operation
Many process plants have "identical" centrifugal pumps installed in a given service. Most of these were probably intended as spare equipment. They would be started up in the event the primary pump ha..
Case 53: Electrical faults can cause shaft and gear failures
This technique allows transient torques in geared units to be determined
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