Aircraft fluid check valve assembly with indexing

摘要

An aircraft check valve assembly where the fluid check valve is indexed in rotational position relative to a first duct flange and to a second opposed duct flange and to a clamping band where the check valve includes an annular check valve flange having at least one index tab extending therefrom. The index tab formed in the check valve annular flange engages a void area formed in an outer annular ridge formed in the first and second duct flanges. A clamping band holds the first duct flange to the check valve flange and to the second duct flange where the clamping band is rotationally indexed to the check valve by index fingers formed on the index tab which and extends to occupy a gap formed in a hinge point of the band clamp.

主权项

1. An aircraft check valve assembly comprising:
a first duct flange having an outer annular ridge interrupted in a circumferential direction by at least one void area; a second duct flange; a check valve having a check valve flange extending annularly therefrom including at least one index tab, wherein the index tab occupies the void area formed in the outer annular ridge; wherein the outer annular ridge is interrupted in the circumferential direction by a plurality of circumferentially spaced void areas, the outer annular ridge extending continuously between the respective void areas.