Quarter turn quick connect fitting

摘要

A quarter turn quick connect fitting assembly 10 for connecting miniature fluid conduits, such as tubing, includes a first fitting 12 having radially projecting pins 28 and a second fitting 14 located with a rotatable quarter turn nut 16 having spiral grooves 48 which receive the pins. The first fitting defines a central passage 26 and the second fitting defines a central passage 42 which may each be configured to receive a hollow tube set (104 in Fig. 4) or to receive an externally threaded mating fitting. The fitting assembly 10 may be configured to attach to the end of a column, and include an adapter (158 in Fig. 10) which includes a guard column, or a frit (188 in Fig 11) for filtering the fluid passing through the assembly.