METERING PUMP Russian patent published in 1997 - IPC

FIELD: instrumentation engineering, metering of liquids of different viscosity. SUBSTANCE: metering pump has hollow body with bottom and cover. Body is provided with inlet branch pipe joined to inlet electromagnetic valve, discharge branch pipe to which discharge electromagnetic valve is rigidly connected, two magnetically controlled contacts, float-balance beam, magnet installed in bottom of float which internal space communicates with gas space of metering pump. Magnetically controlled contacts are sealed and mounted for free movement along outer side wall of body and for interaction with magnet. First magnetically controlled contact is connected contact is electrically connected to winding of discharge electromagnetic valve. EFFECT: simplified design, increased reliability, possibility of accurate metering and check of dosed liquids of different viscosity. 1 dwg