Diaphragm pump N026 EX
Operation
Translation of Original Operation and Installation Instruction, english, KNF 059217 11/19
25
Vapors as medium
à
The service life of the diaphragm can be extended by preventing the
formation of condensate in the pump. Therefore, only perform work
with saturated or nearly saturated vapors with a warm pump.
Operation with open suction-side gas connection can result in con-
taminants and objects being drawn in.
8.2 Information on switching the pump on and off
Switching on the pump
The pump must not be started up against pressure or vacuum dur-
ing switch-on. This also applies during operation after a brief power
failure.
à
Ensure that normal atmospheric pressure is present in the lines when
switching on.
Switching off the pump
à
KNF recommends: When transferring aggressive media, flush the
pump before switching off (see Chapter
) to ex-
tend the service life of the diaphragm.
à
Establish normal atmospheric pressure in the lines (relieve pump
pneumatically).
Recommissioning
à
Before recommissioning, observe the applicable standards, guidelines,
regulations and technical standards at the electrical connection.
Inspecting the pump
à
Inspect the pump periodically for external damage or leakage.