Pure water metering device includes separator as valved molecular sieve or membrane fed via valved line with additive-mixed water using line to draw off additives.

摘要

A separating device (4) in the metering device (1) separates water admixtures especially anti-freeze. The separator is designed as a molecular sieve or membrane and the metering device operates in pulses using a piston (3) moving to and from the separator. Water with additives comes in through line (6), having line (7) to draw additives off from the device (1). Valves (8,9) are fitted in both lines (6 and 7). The clean water is fed on for use and the cleaning operation requires vacuum on the separator input side or impactive flow onto the water surface.