MULTIPURPOSE VALVE ARRANGEMENT Russian patent published in 1996 - IPC

FIELD: arrangements intended to control the flow rate of liquid and gaseous media. SUBSTANCE: the multipurpose valve arrangement has a body with inlet and outlet branch-pipes, cutting-off and control member in the form of a cylindrical sleeve connected through ribs to movable rods kinematically linked with a drive roller. A piston is secured at the end of the rod, which is positioned in the guide cylinder and loaded by a spring. The piston space of the cylinder communicates with the inlet space of the body. The outer space is connected to the outlet of the control solenoid-operated valves and its communicates with the inlet space and drainage. The rod is made of two parts, one of them being connected to the piston, and the other being engageable with the drive roller. EFFECT: enhanced reliability. 1 dwg