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Useful Reliability and Maintenance Resources

from today's industrial maintenance experts

how do control valves work title page
Equipment Knowledge

How do Control Valves Work?

How do control valves work? Control valves regulate the flow of a liquid or gas by opening or closing internal passages. They form part of a control loop used to control a process. The control valves respond to instructions from the controller and adjusts the internal openings accordingly.

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Condition Monitoring

Making the Case for Harmonics, Part 2

The question I posed is: Are the harmonics real? In other words, although the mass is still only bouncing up and down 30 times per second, is there actually real vibration occurring at 60, 90 and 120 Hz, etc.? OR are these just artifacts of the FFT?

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Maintenance Management

Shutdown and Turnaround in 6 Phases

A plant shutdown and turnaround is defined as a major plant maintenance shutdown, typically involving the entire plant or multiple areas and lasts for several days (or if not properly planned and scheduled can last longer than expected). Some organizations have both Major (more than 24 hours) and minor (24 hours or less). In many cases, minor shutdowns can have a bigger impact on lost production.  

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CMMS / Tech Database

Preventive Maintenance and Inspection with the CMMS System

Maintenance expenses often account for a significant portion of an organization’s operating expenses, ranging between 20% and 60%, depending on the specific industry. Despite this substantial financial outlay, strategic optimization of maintenance activities has been a secondary concern for many companies over the past few years. This oversight represents a missed opportunity to improve financial performance and operational efficiency.

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