Operation
Diaphragm pump N0150 EX
30
Translation of Original Operation and Installation Instruction, english, KNF 321729 11/19
WARNING
Risk of pump head bursting due to excessive
pressure increase
à
Do not exceed the maximum permissible op-
erating pressure (see
).
à
Monitor the pressure during operation.
à
If the pressure exceeds the maximum permis-
sible operating pressure of the pump: immedi-
ately switch off the pump and remedy the fault
(see Chapter Troubleshooting).
à
Only throttle or regulate the air or gas quantity
on the suction line to prevent the maximum
permissible operating pressure from being ex-
ceeded.
à
If the air quantity or gas quantity on the pres-
sure line is throttled or regulated, make sure
that the maximum permissible operating pres-
sure at the pump is not exceeded.
à
Ensure that the pump outlet is not closed or
restricted.
WARNING
Risk of explosion from elevated ambient tempera-
ture
à
Monitor the ambient temperature (compres-
sion heat, motor heat).
à
Ensure sufficient cooling air supply.
Excessive pressure, with all of the associated hazards, can be pre-
vented by means of a bypass line with a pressure relief valve be-
tween the pressure side and suction side of the pump. Further infor-
mation is available from KNF Customer Service (contact data: see
www.knf.com).
WARNING
Risk of dangerous gas mixtures during pump op-
eration if diaphragm breaks
If the diaphragm should break, the medium will
mix with the air in the compressor housing or in
the surroundings.
à
Stop pump immediately.
à
Replace the diaphragm prior to further opera-
tion (see Chapter
Because the diaphragm is a wear part, diaphragm breakage may
occur at any time.
Pump standstill
à
When the pump is at a pump standstill, establish normal atmospheric
pressure in the lines.
Содержание N0150 EX
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