6 System integration
Operation manual mzr-4622
26
Technical data subject to change without prior notice!
Last update: March 2019
6.3
General instructions for the assembly of the liquid supply network
Foreign bodies and dirt particles can block the micro annular gear pump and
lead to its damage.
Warning
Please note that all the components of the liquid supply system should be
clean and flush them if needed before pump installation. Remember to remove
all remaining splinters or swarf from connection fittings, rests from liquid
containers and any dirt from valves, tubing and filters.
Warning
Operate the pump with a filter featuring 10 µm or smaller pores. The filter
protects the pump from particles and dirt.
!
If the pump is connected once again with a hose that has already been used,
the enlarged ending of the hose should be cut off in order to prevent it from
slipping off and the liquid from flowing out of the connection.
6.3.1
Assembly of the fluid connection fittings
1.
Cut the hose to a right angle by using an adapted hosecutter.
Warning
Remove the protection caps from the slip fittings of the pump.
2.
If needed, warm up or widen the hose and slip it on the slip fitting till it
touches to the housing.
!
Pay attention to the correct assembly of the tubing and the pump head in
order to keep the default direction of flow. If you wish to operate the pump in
a reverse direction, please contact one of HNP Mikrosysteme's application
engineers since it is not possible in every case.
3.
The intake tubing should be kept as short as possible and have a possibly
large internal diameter in order to assure best intake performance.
4.
In order to avoid dry operation, check before each use that enough liquid is
supplied to the pump.
Warning
Dry run of the micro annular gear pump may damage in particular the bearing
and the sealing. However, a short dry working phase at the beginning of the
operation is harmless.
6.3.2
Installation with the manifold assembly
1.
Put the pump in the desired position for installation. Ensure that the intake
and the delivery fluid connections have not been inverted.
Warning
Check if the o-ring 1.5 x 1 mm lay correctly and are not damaged.
2.
Screw on the holding nut.