Maintenance & Reliability
Case 49: Isolating foundations from machinery vibrating forces
Vibration can be detrimental to nearby equipment
Extreme failure analysis: never again a repeat failure
Apply root-cause failure analysis to recurring reliability problems
HP Reliability: Pump suction strainer issues
Does your process piping have strainers located just upstream of the pump suction nozzles? Perhaps you are using them to protect pumps from unintended ingestion of tower packing, nuts, bolts and other..
HP Reliability: Unreliability, global procurement and you
Allow us to suggest that you engage in a "reality check" on the subject of equipment unreliability, global procurement and your own role in the matter. Please examine, realistically and objectively, t..
HP Reliability: Modern blowers can be reliable
If you have ever had to struggle with unreliable blowers, you are not alone. Blowers are low-pressure machines with typical differential pressures of five to 20 psi (roughly 0.3 to 1.3 bar). Whether i..
Case 48: Troubleshooting a roller-bearing failure
Life to failure and design life aren't the same thing
Developments in metal-seated valves for severe-service applications
The most recent design emphasis has been on protecting or removing the seats and seating members from direct impingement by particles in the flow stream
HP Reliability: Recognizing advantageous API seal flush plans
A feature article in the May 2008 issue of HP dealt with sealing issues of interest to industry.1 It explained the energy conservation and environmental benefits described in the API literature. The p..
Failure analysis of above-ground storage tank bottom plates
Here are the field performance assessments and remedial measures
HP Reliability: Consider oil mist for positive-displacement blowers
       Positive-displacement blowers (Fig. 1) are often used to move air ranging in pressures from slightly negative to about 15 psig (~ 1 bar) positive. These rotary-lobe machines..
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