Testing of nitrile rubber joints for a deep submergence vehicle

Type Article
Date 2020-10
Language English
Author(s) Davies PeterORCID1, Le Gac Pierre YvesORCID1, Ciausu Viorel2, Gallois Herve3
Affiliation(s) 1 : IFREMER Centre de Bretagne, 29280, Plouzané, France
2 : IFREMER, Centre de Méditerranée, 83500, La Seyne-sur-Mer, France
3 : GENAVIR, 83500, La Seyne-sur-Mer, France
Source Polymer Testing (0142-9418) (Elsevier BV), 2020-10 , Vol. 90 , P. 106630 (7p.)
DOI 10.1016/j.polymertesting.2020.106630
WOS© Times Cited 4
Keyword(s) Nitrile, Compression set, Underwater, Sealing, O-ring

This paper describes an experimental study of the long term sealing performance of nitrile rubber joints on a manned deep ocean submersible operating down to 6000 m depths. An initial formulation showing large compression set is discussed first. Then results from long term laboratory testing of a second formulation, aged in water for 10 years, are presented. Much lower compression set and higher sealing forces are observed. Based on these results a testing methodology for the prediction of the long term sealing performance of nitrile O-rings is proposed. Results from laboratory tests are compared with those measured on joints aged for up to 10 years in service.


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