High pressure fitting with self-releasing ferrule

摘要

A fitting assembly is provided having a nut and a self-releasing ferrule, which in certain embodiments may be assembled by an operator. The nut and ferrule of the fitting assembly have passageways therethrough for receiving and removably holding tubing.

主权项

1. A fitting assembly for use in a liquid chromatography system, comprising:
a) a nut having a first end and a second end and a passageway therethrough, a nut head proximal to said first end of the nut, a first non-tapered portion, an externally threaded portion, a second non-tapered portion, a lip, and a tapered portion proximal to said second end of the nut, and wherein said nut defines a slot that extends from said second end of said nut through at least a portion of said tapered portion of said nut; and b) a ferrule having a first end, a lip proximal to said first end of the ferrule, a plurality of external tapered portions, a second end, and having a passageway therethrough, wherein said passageway of said ferrule comprises a plurality of internal tapered portions and at least a first internal non-tapered portion, and wherein said lip of said ferrule is adapted to securely engage with said lip of said nut.