Rückschlagventil

摘要

A check valve (10) for use in a GDCS of a nuclear reactor and having a motor driven disk (14) including a rotatable armature for rotating the check valve disk over its entire range of motion is described. In one embodiment, the check valve (10) includes a valve body (12) having a coolant flow channel (16) extending therethrough. The coolant flow channel (16) includes an inlet end (20) and an outlet end (22). A valve body seat (18) is located on an inner surface of the valve body (12). The check valve (10) further includes a disk assembly (14), having a counterweight (38) and a disk base (46). The disk base (46) includes a seat (48) for seating with the valve body seat (18). The disk assembly (14) further includes a first hinge pin member (50) which extends at least partially through the disk assembly (14) and is engaged to the disk assembly (14). The disk assembly (14) is rotatable relative to the first hinge pin member (50). The check valve also includes a motor having a stator frame with a stator bore therein. An armature is rotatably positioned within the stator bore and the armature is coupled to the disk assembly to cause the disk assembly to rotate about its full range of motion.