HYDROELECTRIC RELAY Russian patent published in 1996 - IPC

FIELD: valving. SUBSTANCE: relay is provided with major and additional units provided with a lever system and electrical contacts. Top and bottom disks are mounted on a diaphragm. The top disk is mounted inside the top chamber that is in communication with the atmosphere. The spring submerges the diaphragm and float in the direction to the inlet connecting pipe of the housing. The housing is also provided with the outlet connecting pipe. The major and additional units are provided with plungers that are in contact with the top disk. The float is mounted on the stud bolt between the bottom disk of the diaphragm and valve inside the bottom chamber. The valve is made up as a guide bushing. The float can produce a lifting force that exceeds the total weight of the float, stud bolt, valve, rod, bottom and top disks of the diaphragm, disarrange itself, spring force, and opposing force exerted by the lever unit systems. The relay is provided with a visually signalling device that indicates the presence of fluid in the bottom chamber. The signalling device is made up as the end of the rod that is brought out of the top cover. EFFECT: enhanced reliability. 1 dwg