Conveying and dosing system consisting of two reciprocating pumps

Conveying and metering system for liquids (1) with two series-connected electrically driven pumps (2, 3), which are constructed as electromagnetically driven reciprocating pumps individually. The driving electromagnets (12, 14) by a common electric drive unit (16) with pulsed electrical power supply, wherein the first pump (2) is set by the electric drive unit to a higher delivery rate than the second pump (3).