Elmo Rietschle G-BH7 Operating instructions - Manual (Page 11)

Technical Data
© Gardner Denver Deutschland GmbH 11 / 28 610.44436.40.000
3.2 Electrical data
See rating plate.
3.3 Operating
conditions
Temperatures
max. permissible temperature:
+40°C [+104°F]
Nominal value:
+15°C [+59°F]
Temperature of
pumped gases:
Pump-motor units for higher fluid
temperatures on request.
max. permissible temperature:
+40°C [+104°F]
min. permissible temperature:
-15°C [+5°F]
Nominal value:
+25°C [+77°F]
Ambient
temperature
(standard
design)
1 :
Ambient temperatures between
25°C [+77°F] and 40°C [+104°F]
affect the permissible total
pressure difference (see Section
"Permissible total pressure
difference").
At higher temperatures the
winding may be damaged and
the grease change interval may
be shortened.
1 For design with frequency converter, see
separate operating instructions.
Pressures
Min. inlet
pressure: See rating plate.
Max. discharge
pressure during
compressor
operation: See rating plate.
Max. permissible
pressure in
pump-motor unit: 2.5 bar abs. [36.2 psia]
At this pressure the operation of
the pump-motor unit may be
considerably impaired.
Provide a corresponding
protective device (e.g. pressure
relief valve) if necessary.
Permissible total
pressure
difference: The total pressure difference
specified on the rating plate only
applies under the following
conditions:
 Ambient temperature:
25°C [77°F].
 Inlet temperature
(temperature of pumped
gases at inlet connection):
15°C [59°F].
 Pressure:
during vacuum-pump
operation:
1,013 mbar [14.7 psia] at
discharge connection;
during compressor
operation:
1,013 mbar [14.7 psia] at
inlet connection;
At an ambient temperature of
40°C [104°F] the total pressure
difference specified on the rating
plate must be reduced by 10%.
If the ambient temperature is
between 25°C [77°F] and 40°C
[104°F], then the total pressure
difference specified on the rating
plate must be reduced linearly to
the temperature by between 0
and 10 %.
Installation altitude
Max. of 1,000 m [3,280 ft] above sea level.
When installing the pump-motor unit at an
altitude of more than 1,000 m [3,280 ft] above
sea level, first inquire with the Service
department.