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2.3.1 List of media
Note
The information in the following table is a recommendation and under no circum-
stances replaces a test whether the pump materials are suitable for a certain
pumped medium under the prevailing operating conditions. No warranty claims can
therefore be made from the information provided. Please contact Biral if in doubt.
Please consider critical factors such as the concentration of the pumped medium, the media tem-
perature or the feed pressure when making your selection. These factors can significantly influence
the chemical resistance of certain pump designs.
Pumped media
Water
Ground water
Boiler feed water
District heating water
Condensate
Softened water
Coolant/antifreeze
Ethylene glycol
Glycerine (glycerol)
Potassium acetate
Potassium formate
Propylene glycol
Brine made of sodium chloride, 30%
Notes:
B
The medium has a density and/or viscosity different from water.
This must be taken into account when calculating the motor power and flow rate.
C
The medium must be oxygen-free (anaerobic).
D
The medium can crystallise or harden in the floating ring seal.
Operating range of the floating ring seal
Notes
C
B, D
B, D
B, C, D
B, C, D
B, D
B, C, D
Glycolgehalt [%]
50
40
30
20
10
-20 -10 0 10 20 30 40 50 60 70 80 90 100
Max. temperature
VivarA S
VivarA M
< 120 °C
< 140 °C
< 120 °C
< 140 °C
< 120 °C
< 140 °C
< 120 °C
< 140 °C
< 120 °C
< 140 °C
< 120 °C
< 120 °C
< 120 °C
< 120 °C
< 120 °C
< 120 °C
< 120 °C
< 120 °C
< 120 °C
< 120 °C
< 5 °C
< 5 °C
Q7 Q7
IL00003817_00
Temperature [°C]
Temperatur [°C]
English
Floating
O-ring
ring seal
Q7/Q7
EPDM
Q7/Q7
EPDM
Q7/Q7
EPDM
Q7/Q7
EPDM
Q7/Q7
EPDM
Q7/Q7
EPDM
Q7/Q7
EPDM
Q7/Q7
EPDM
Q7/Q7
EPDM
Q7/Q7
EPDM
Q7/Q7
EPDM
120
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