Elmo Rietschle G-BH9 User Manual
Page 11

Technical Data
© Gardner Denver Deutschland GmbH
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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:
Ambient temperatures between 
25°C [+77°F] and 40°C [+104°F] 
affect the permissible total 
pressure difference. 
At higher temperatures the winding 
may be damaged and the grease 
change interval may be shortened.
 
Pressures 
Min. suction pressure:
See rating plate
Max. discharge pressure 
in compressor mode: 
See rating plate
* The total pressure difference, shown on the
rating plate, applies only for the following 
conditions: 
 Ambient temperature: 25°C 
 Pressure for vacuum operation: 
1013 mbar at pressure connection;
 Pressure for compressor operation:
1013 mbar at suction connection;
 Intake temperature (temperature of conveyed
gases at suction connection): 15°C 
For ambient temperatures between 25°C and 
40°C, the total pressure difference specified 
on the rating plate must be reduced (at 40°C 
by 10%). 
Consultation with the manufacturer is essential 
for such operational conditions. 
 
 
 
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. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
