Air Pump Seal Improvement: Case Study By specifying the correct material, O-ring and geometry, Eclipse offered a sealing solution that immediately provided an increase to the customer’s product life. The Client’s Issue A manufacturing client was producing reciprocating air pumps with 4” and 6” diameter cylinders running at 200 psi and temperatures up to 200°F. Their customers used them for increasing the pressure and/or volume of air for various industrial applications. The incumbent seal was an off-the-shelf Carboxylated O-ring, seals which had an average life of 1,000 hours. Lubrication wasn’t always possible in this application, and there was a high coefficient of friction for the O-ring sliding on the composite (non-metallic) bore. This caused unwanted heat generation which degraded t

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