In the January/February 2009 issue, "A Practical Approach to PHE Maintenance," an article by Mark Sloan, a market unit manager of Alfa Laval, Richmond, Va., contained the wrong image for figure 5. The error has been corrected on www.process-cooling.com, and the correct figure 5 is reprinted at right. A link to the corrected article is provided at the bottom of the page.
Figure 5. The deformed gasket groove in the ring area above is evidence that this plate heat exchanger has been overtightened.