HIGH PRESSURE FITTING FOR A LIQUID CHROMATOGRAPHY SYSTEM

摘要

A fitting for coupling fluidic paths, such as high pressure fluidic paths in liquid chromatography systems, includes a compression nut, a tube assembly and a compression member. The compression nut has a threaded outer surface to engage a threaded bore of a receiving port and the tube assembly has an outer surface and an end face to contact a sealing surface of the receiving port. The compression member is pre-staked to the outer surface of the tube assembly at a predetermined distance from the end face and has a tapered surface to engage a surface of the receiving port. The predetermined distance permits the tube assembly to be inserted into the receiving port so that the end face makes contact with the sealing surface without the tapered surface engaging a surface of the receiving port and so that the threaded outer surface of the compression nut engages the threaded bore.

主权项

1. A fitting for coupling fluidic paths, comprising:
a compression nut having a threaded outer surface to engage a threaded bore of a receiving port; a tube assembly having an outer surface and an end face to contact a sealing surface of the receiving port; and a compression member pre-staked to the outer surface of the tube assembly at a predetermined distance from the end face and having a tapered surface to engage a surface of the receiving port, the predetermined distance permitting the tube assembly to be inserted into the receiving port so that the end face makes contact with the sealing surface without the tapered surface engaging a surface of the receiving port and so that the threaded outer surface of the compression nut engages the threaded bore of the receiving port.