Diaphragm Pumps UN035_I EX
Technical Data
7
Electrical data
Parameter
Value one-
headed pumps
Value two-
headed pumps
Voltage / Frequency
EX-Proof AC motor
115/230 V
60 Hz
115/230 V
60 Hz
Power
EX-Proof AC motor
250 W
250 W
Operating current
EX-Proof AC motor
6.5/3.3 A
6.5/3.3 A
Tab. 4
* see type plate
The pumps are fitted as standard with a thermal-switch to protect
against overloading.
Other parameters
Parameter
Values
Permissible
ambient temperature
+ 5 °C to + 40 °C
Permissible media temperature
+ 5 °C to + 40 °C
Gas-tightness of pump head
(leak rate)* for all pumps except
.9 versions (not tested)
approx. 6 x 10
-3
mbar l/s
Gas-tightness of pump head
(leak rate)* for UN035_ _.9I EX
(tested)
< 6 x 10
-3
mbar l/s
Tab. 5
*
After opening pump head or replacing the diaphragm and reed valves (or
valve plate) the gas tightness is no longer guaranteed. A leak test is
required to verify that the original standard of gas-tightness has been
achieved.
