February 2009

Columns

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..

Bloch, Heinz P., Hydrocarbon Processing Staff

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 it is due to blower vibration issues, bearing failures or lubrication and overheating problems, these machines are very often found on the "troublesome equipment" lists of many plants. Why, then, have blowers with less than optimum reliability for years found their way into many HPI projects? One reason is that the cost-estimating manuals of many design and project contractors often tend to list only the least expensive machines. Regrettably, project appropriations and monetary allocations are

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