Lower nozzle for use in nuclear fuel assembly

摘要

The lower nozzle (12) is of the type having an axis (A-A) and comprising a transverse lower tie plate (16) for channelling the coolant through the lower tie plate (16) and a tubular skirt (18) extending axially from the periphery of the lower tie plate (16), the skirt (18) delimiting an axial housing (24) closed at one end by the lower tie plate (16) and open at the opposite end, a debris filter (20) configured for axial insertion in the housing (24) and snap-fit springs (38) for retaining the debris filter (20) in the housing (24) after insertion. The springs (38) are configured to shift the debris filter (20) axially towards the lower tie plate (16).