DRAIN DEVICE OF RAILWAY TANK Russian patent published in 2018 - IPC B61D5/00 B65D90/54 

FIELD: transportation.

SUBSTANCE: drain device of a railway tank comprises a cylindrical housing of two connected parts (1, 2), between which a safety ring (4) is mounted. A main shutter (4) with a drive mechanism is installed in the upper housing part, and an additional shutter in the form of a cover with a gasket and a clamping screw is installed in the lower housing part on a rotary bracket (5). The main shutter is mounted on an abutment rod (10) of the drive mechanism with the possibility of free rotation in an open clutch and consists of two valves mounted in series one below the other, the upper of which is a spring poppet valve for closing the upper face of the drain hole, and the valve located under it is a shut-off valve in the form of a truncated cone for closing the flow housing section.

EFFECT: invention increases the reliability of the drain device due to preserving its tightness under conditions of external forces acting on it in the event of emergency situations.

2 dwg