August 2014
Special Report: Fluid Flow and Rotating Equipment
Update on secondary seals for fluid machines
Elastomer-based O-rings are used as secondary sealing components in millions of fluid machines. Although O-ring seals are primarily intended for fluid containment between different but nonrotating com..
The Authors
Heinz P. Bloch resides in Montgomery, Texas. He retired as Exxon Chemical’s Regional Machinery Specialist for the U.S. and has authored or co-written more than 780 publications, among them 23 comprehensive books on practical machinery management, failure analysis, failure avoidance, compressors, steam turbines, pumps, oil mist lubrication and optimized lubrication for industry. Mr. Bloch holds BS and MS degrees (cum laude) in mechanical engineering from the Newark College of Engineering (NCE). He is one of 10 inaugural inductees into NCE’s Hall of Fame, which honors its most distinguished alumni.
PhD, MSc, BEng, is the special products manager of compressor sealing design and testing for AESSEAL plc in Rotherham, UK. He was originally the product development manager involved in the design of many of the company’s early products. He now works as the technical products manager specializing in high-duty seals. Prior to his return to AESSEAL, he studied for his PhD at the University of Sheffield in the UK, and spent time working as a consulting engineer.
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