KARDOS stands for a group of precision metering pumps which have been developed especially for applications with a high demand for accuracy, reliability and flexibility in a wide performance range
The symmetrically designed gearbox allows thearrangement of two metering heads on the same level and the stacking of three heads above one another, thus enabling a maximally 6-head pump on the KN series and up to 12 pump heads on the K series.
Each metering head is 100% adjustable independently. Any speed adjustment to the main drive has a simultaneous effect on all metering heads, but the relative volume ratios remain unchanged
the correct choice of the metering head depends on the aggessivity of the chemical, its temperature and viscosity, and on the system pressure.
Environmental factors (rough operating conditions, radiant heat, etc.) must also be taken into consideration.
Plastic metering heads can be used up to 10 bar; stainless steel metering heads allow operating pressures of up to max. 400 bar. Metering head
pistons are available in ceramic or stainless steel material (see selection table)
Suction and discharge valves can be supplied as double-ball or spring-loaded single-ball valves.
Spring-loaded valves are to be recommended if the chemical used has a viscosity exceeding 400 mPas