KNF N 922 Ex, Инструкция по эксплуатации и монтажу

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Diaphragm pump N922 EX Technical data
Translation of Original Operation and Installation Instruction, english, KNF 313600 11/19 13
4 Technical data
4.1 Technical data
Pump materials
Assembly Material
Pump head Modified PTFE
Diaphragm PTFE-coated
Valve plate/seal FFPM
O-ring (only .29 versions) FFPM
Tab. 17
Pneumatic values
Parameter Value
N922 EX 16L Value
N922 EX 8L
Max. permissible operat-
ing pressure [bar rel] 1.0 1.5
Ultimate vacuum [mbar
abs.] ≤200 ≤350
Flow rate at atm. pres-
sure [l/min]*:
-open bypass
-closed bypass 50 Hz 60 Hz 50 Hz 60 Hz
10 ± 10%
16 ± 10%
12 ± 10%
18 ± 10%
3 ± 15%
7.5 ± 10%
4 ± 15%
9 ± 10%
Flow rate at max. permis-
sible operating pressure
[l/min]* 6.5 ± 10% 8 ± 10% 0 0
Tab. 19 *Liters in standard state (1013 mbar)
Other parameters
Parameter Value
Permissible ambient temperature
[°C] + 5 to + 50
Permissible media temperature [°C] + 5 to + 50
Dimensions
N922 EX (three-phase motor)
N922 EX (capacitor motor)
N922.29 EX (three-phase motor)
N922.29 EX (capacitor motor)
See Fig. 4, Kapitel 7.1 Installing the
pump
See Fig. 3, Kapitel 7.1 Installing the
pump
See Fig. 6, Kapitel 7.1 Installing the
pump
See Fig. 5, Chapter 7.1 Installing
the pump
Electrical data See motor type plate
Gas tightness* of the pump head < 6 x 10
-3
mbar l/s
Relative air humidity 80% for temperatures to 31°C, de-
creasing linearly to 50% at 40°C
Starts against:
- Vacuum
- Pressure
0.5 bar g
800 mbar abs.
Tab. 21 * The gas tightness of the pump head is no longer ensured after the pump
head is opened or after replacing diaphragm and valve plates/seals. A leak test
can be used to determine whether the original gas tightness is again achieved.