DUMP TANK VALVE Russian patent published in 2014 - IPC F16K31/26 E03D1/32 

FIELD: machine building.

SUBSTANCE: dump tank valve contains discharge branch, drain hydraulic line and stop device between them. The stop device is provided with pusher that via the rotation lever interacts with a float. The stop device contains installed in series resilient servo-motored valve, intermediate bushing, membrane, nozzle, choke and separator. The resilient servo-motored valve is connected with the pusher. The intermediate bushing is equipped with closed hole connected with drain hydraulic line by the bypass channel, and with the central rod having at least one longitudinal groove. The membrane has rigid central part, a hole for bushing rod is made in this part. The nozzle is connected with the discharge branch and creates seat surface for the membrane central part. The choke is installed in the drain hydraulic line and limits power of the passing flow. The separator is located in the discharge branch upstream the nozzle and ensures the passing flow spinning.

EFFECT: increased life of valve fault-free operation.

3 cl, 4 dwg