KNF N 143 AV.12 E - Page 10

Technical Data Diaphragm Pumps N 143/186.12
10 Translation of original Operating and Installation Instructions, english, KNF 121610-121613 07/16
Other parameters
Ambient and media temperature
Permissible ambient tempera-
ture
+ 5 °C to + 40 °C
Permissible media temperature
+ 5 °C to + 40 °C
Gas-tightness
Gas-tightness* of pump
head/pump heads (leak rate)
< 6 x 10
-6
mbar l/s**
Other
Dimensions N 143 _ _.12 E:
L x H x W [mm]
400 x 223 x 177
Dimensions N 186.1.2 _ _.12 E:
L x H x W [mm]
502 x 225 x 288
Dimensions N 186.3 _ _.12 E:
L x H x W [mm]
450 x 225 x 288
Maximum permissible ambient
relative humidity
80 % for temperatures up to
31 °C, decreasing linearly to
50 % at 40 °C
Max. altitude of site
[m above sea level]
2000
Tab. 12
* Perform a leak test in order to ensure gas-tightness after opening
the pump head/pump heads or after exchanging diaphragms and
valve plates.
** Values valid for helium leak test.
Additional equipment
The pump is equipped with a safety diaphragm.
 Refer to chapter 5 for an explanation of purpose and prin-
ciple.
 Refer to chapter 6.4 for notes on assembly and connec-
tion.
 Refer to chapter 7 for notes on operation.