Patent ID: 6183021
Filing Date: 2001-02-06
Classification: F16L

Abstract:
A pass-through dual containment fitting for protectively sealing a portion of pass-through perfluoroalkoxy tubing and having an exterior surface, the fitting comprising:(a) a fluoropolymer fitting body having a longitudinal bore for receiving said pass-through perfluoroalkoxy tubing, a first end, a second end having an extending nose portion, and a collar intermediate said first and second ends, the fitting body having a threaded portion adjacent the collar for securing said fitting body;(b) a radially compressive sealing device, having a longitudinal bore for receiving said pass-through perfluoroalkoxy tubing and comprising a collet with a plurality of gripping teeth, said compressive sealing device engageable with said first end of the fitting body; when said compressive sealing device is fully engaged with said first end of said fitting body it forms a fluid-tight seal with said fitting body and said exterior surface of said pass-through perfluoroalkoxy tubing and axially secures the tubing to the fitting; and(c) a dual containment sealing device, said dual containment device comprising a perfluoroalkoxy containment tubing having a longitudinal bore therethrough for receiving said pass-through perfluoroalkoxy tubing and having a flared end, said flared end fitting engageable with the second end of the fitting; whereby said flared end fitting engages to said nose portion forming a fluid-tight seal between said dual containment device and said fitting body.