Sealing Sense
by Carl H. Jones
August 29, 2016
Packing recommendations for valves and centrifugal pumpsFigure 2. Packing recommendations for valves and centrifugal pumps

More than 35 years later, various manufacturers provide a range of ePTFE/graphite compositions using different expanded PTFEs, lubricants and graphite combinations, and this material class is still the standard by which all general-service packings are measured. Those who work with compression packing today owe a debt of gratitude to one of the great industry pioneers, whose creativity introduced this breakthrough technology.

In light of an increased emphasis on sustainability, the ePTFE/graphite material is once again—35 years after its introduction—emerging as an important solution for optimizing resources used in the operation of centrifugal pumps.

Next Month: Back to Basics: Mechanical Seals

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