AZURA® Pump P 2.1L Instructions V6840
58
Maintenance and care
Process
Procedure
1.
Place each check valve into a beaker with solvent, e.g. isopropanol.
2.
Put the beaker with the check valve in an ultrasonic bath for at least
10 minutes.
3.
Let the check valves dry afterwards.
Insert both cleaned check valves.
8.4.3
Installing the check valves
Note:
PEEK fittings can withstand pressures up to 400 bar for 1/16“ and
200 bar for 1/8“.
Note:
The ball and position of the valves have been harmonized to each
other. Insert the valves in the direction of flow.
The pump head has been purged.
The capillaries have been removed.
The pump head has been dismounted.
Open-end wrench, sizes 10, 17
Process
Figure
Procedure
1.
Insert the check valves
1
so
that the notch of the check
valve
2
points downward.
2.
Manually screw in inlet and
out let fittings and tighten them
with a torque wrench and the
respective torque.
Fig. 40:
1
Check valve
Next step
Component defect
Possible damage to the pump head due to over-tightened capillary
fitting.
Note the torque of the screw connection.
Prerequisite
Tools
2