RAILWAY TANK CAR SHUTOFF-AND-DRAIN DEVICE Russian patent published in 2006 - IPC B61D5/00 B65D90/10 B65D90/54 

FIELD: transport engineering; railway transport.

SUBSTANCE: invention is designed for discharging liquid and viscous products from railway tanks. Proposed shutoff-and-drain device includes drain neck, rotary gate 3, backup rotary gate 4 and end stopper 5 independently controlled and installed in neck. Drain neck is formed by flanged housing of gates whose flanges are connected from inside and outside to flange of barrel and are clamped together by fasteners to form common flanged joint. Part of through fastening holes in flange of housing of backup rotary gate is provided with bushings of height exceeding thickness of flange. Flanged joint is provided with washers made of material whose linear expansion coefficient exceeds linear expansion coefficient of main material of joint.

EFFECT: improved operation reliability and safety of shutoff-and-drain device.

10 cl, 7 dwg