5 Modular system
Operating manual mzr-7240
Last update: March 2019
Technical data subject to change without prior notice!
15
cartridge can be used as a reservoir and is sufficient at maximum flow for one
month in most cases.
fluidic
seal module
inlet seal liquid
outlet seal liquid
outlet
pump
liquid
inlet
pump
liquid
fluidic
chamber
gas tight module
additional
shaft seal
pump shaft
shaft seal
outlet
pump
liquid
inlet
pump
liquid
figure 7
Pump head without the fluidic seal module
Pump head with the fluidic seal module
Operation with fluidic seal module
The selected
sealing liquid
has to be
compatible
with the
delivered liquid
. The
customer is in charge of the correct selection.
The filling procedure through the port has to be realized carefully. The ports
have a 1/4"-28 UNF thread. They are displaced to realize a better degassing of
the seal chamber also in a horizontal direction. The filling of the sealing liquid
starts with the lower level port. The filling of the fluidic seal module continues
until no bubbles can be seen on the outlet port side. When the liquid is free of
bubbles the outlet port has to be closed by vent screw. To fill the chamber a
cartridge or syringe with an appropriate thread 1/4"-28 UNF can be used.
seal liquid inlet
seal liquid outlet
Figure 8
Sectional view of the fluidic seal module
!
Please note that the cartridge or syringe has to be filled up always with
sufficient sealing liquid to avoid air or moisture contact.
If a different installation is selected than the standard installation (e.g. pump
marking horizontal readable) it is possible to exchange the seal liquid inlet port
and outlet port.
The cartridge always has to be assembled in a vertical way to guarantee that
the liquid is gas free and can refill the sealing chamber.