Use Diaphragm Pumps N 143/186.12
4 Translation of original Operating and Installation Instructions, english, KNF 121610-121613 07/16
2.2. Improper use
The pumps may not be operated in an explosive atmosphere.
The pumps are not suitable for transferring liquids.
The pumps are not suitable for transferring dusts.
Pumps designed to create either a vacuum or an overpressure
must not be used for these two purposes simultaneously.
An overpressure must not be applied to the suction side of the
pump.
Pumps with three-phase motor are not provided for the operation
with frequency converter.
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