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We are very pleased to share the new academic research paper that have been published!

Parjet has been collaborating with National Taiwan University on research of the behavior of PTFE Rotary lip seals. We have published 2 research papers by far, all related to the performance of PTFE rotary seals.

Recently we have just published another new article on the wear behavior and sealing performance of the metal cased PTFE rotary lip seals. You can find the full article on here. 

Article Title: Experimental and numerical investigations of the wear behavior and sealing performance of PTFE rotary lip seals based on the elasto-hydrodynamic analysis with considerations of the asperity contact.

Abstract:

Sealing performances of Polytetrafluoroethylene (PTFE) rotary lip seals could be deteriorated due to wear behaviors, objective investigations of the potential leakage are therefore demanded in the early design stage. Numerical assessments based on the elasto-hydrodynamic analysis proposed in the authors’ recent work in conjunction with the Greenwood and Williamson contact model are presented. The asperity contact pressure is calculated and implemented into the modified Archard wear model to estimate the wear depth of the seal lip under the lubricated operation. Current analysis procedures can fairly estimate evolutions of the seal lip geometry under both the dry and lubricated operation, and a sign of the reverse pumping rate is further verified as an effective index of the leakage.

Other published articles:

Sealing performance assessments of PTFE rotary lip seals

Wear and leakage assessments of canted coil Spring Energized Seals