Importance

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Abstract

A dual seal tube fitting is provided for quick and easy, substantially leak-free coupling with plastic tubing or the like in a water supply application, such as in a drinking fountain or the like. A reinforcing metal sleeve is slidably received into the end of a length of tubing which is then slidably received into a central bore of a fitting body having a resilient seal ring seated therein for sealingly engaging an outer diameter surface of the tubing. A compression ring is slidably received onto the tubing in a position over a portion of the internal sleeve therein, and is compressibly retained between the tubing and a fitting body seal face by a compression nut threaded onto the fitting body. The resilient seal ring thus provides a primary seal preventing leakage between the tubing and fitting body, whereas the compression ring provides a secondary seal.

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First Claim