ELECTROMAGNETIC VALVE Russian patent published in 1998 - IPC

FIELD: miscellaneous pipelines and conduits. SUBSTANCE: valve body is built in pipeline. Inlet and outlet pipe connections are arranged along pipeline axis. Outlet pipe connection mounts seat closed by main gate. Auxiliary gate is coupled with core and closes seat at outlet of channel connecting outlet pipe connection with valve body interior. Gates are facing each other and arranged on either side of pipeline axis. Main gate is made in the form of hollow piston accommodating spring placed along its center line. Body interior communicates with inlet pipe connection in vicinity of auxiliary gate. EFFECT: enlarged functional capabilities. 6 cl, 2 dwg