KM 251 en General
V1.0 9
Caution
Risk of malfunction or damage to the device!
The installation site must be under cover!
Pumps with electronics are only suitable for indoor use!
Do not install outdoors!
1.2.9 Dosing Medium
Note
In the event of questions regarding the material resistance and suitability of the KM
251 for specific dosing media, please contact the manufacturer.
The dosing medium must fulfil the following characteristics for standard version
pumps:
•Liquid
• Non-abrasive *
• non-combustible **
* The dosing of abrasive media is possible with certain versions, on request,
** the dosing of combustible media is possible with certain versions of explosion protected pumps, in
according with ATEX.
Maximum permissible viscosity at operating temperature*
* The specified values are approximate values and refer to
the standard version of pumps.
Dosing Medium:
Newtonian liquid
non-degassing
without suspended matter
density similar to water
Please note the increasing viscosity at lower temperatures!
Permissible media temperature
* For SIP/CIP applications, 145 °C is permissible for a short period of time (approx. 15 min) at < 2
bar.
Caution
Risk of malfunction or damage to the device!
The dosing medium must be in liquid phase!
Observe the freezing and boiling point of the dosing medium!
Caution
Risk of malfunction or damage to the device!
The resistance of the parts that come into contact with the media depends on the
media, media temperature and operating pressure. Ensure the parts that come into
contact with the media are chemically resistant to the dosing medium in operating
conditions!
Observe the manufacturer's safety instructions when handling chemicals!
Observe limitations of dosing media depending on type of pump!
Type
up to stroke value
63 [n / min]
stroke value
64 - 120 [n / min]
from stroke value
121 [n /min]
Viscosity (max.) * mPas
KM 251 300 100 50
Dosing head
material
Min. media
temperature
Max. media tem-
perature < 10 bar
Max. media tem-
perature < 16 bar
PVC 0 °C 40 °C 20 °C
1.4571 * -10 °C 100 °C 100 °C
2.4610 * -10 °C 100 °C 100 °C
PP 0 °C 40 °C 20 °C
PVDF -10 °C
60 °C
70° C at 9 bar
20 °C
* At 70°C maximum counterpressure of 3 ba
To Next Page
Loading...
