Rickmeier R41/80 FL-K Pump

8 Technical data The technical data in this catalogue are intended for general information. During installation, operation and maintenance, the operating instructions and the information specified on the products
must be observed.
8.1 Operational limits The maximum permissible operating conditions for gear pumps in the standard version are described in the following. Contact RICKMEIER whenever it is necessary to exceed these specifications. In such cases, please contact our Sales department.
As a prerequisite for a long service life and maximum operational safety, the flow medium must retains its lubricity and, if possible, be clean and non-corrosive, but in any case must always be free
of hard admixtures.
Consideration must be given also to the following:
Properties Flow medium
Inlet pressure (constant pressure according to
DIN 24312)
Kinematic viscosity Degree of contamination (according to ISO 4406:1999, max.)
Gas content (undissolved, max.) Temperature (NBR seals) Temperature (FKM seals)
Radial shaft seal, standstill 4) Radial shaft seal during operation 4) Mechanical seal
Magnetic coupling
Min.
5 mm2/s 1)
-25 °C -25 °C -0.4 bar 5) -0.4 bar 5) -0.4 bar 5) -0.4 bar 5)
Max.
20000 mm2/s 1) 21/19/17 10 vol. % 2) 80 °C 150°C 3) 5 bar 0.5 bar 6) 10 bar 7)
16 bar 7)
Tab. 8: Operational limits of the standard design 1)
Depending on the application and operating conditions, lower and/or higher viscosities are possible, please
contact us.
2) Undissolved gas in the flow medium leads to increased noise emissions.
3) If used above 120°C, special measures may be required under certain circumstances (e.g., heat-resistant
clutch, pressure relief valve with heat-resistant spring, etc.); with optionally available sealing materials, different temperature ranges can be implemented.
4) Manometric 5) For speeds up to 1500 rpm, up to -0.5 bar permissible; in the short term: -0.6 bar (e.g., during start-up)
6) With optionally available radial shaft seal up to 6 bar 7) Versions for higher pressures available on request
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