Watson-Marlow PD22I - Manual (Page 10)

OPERATORS MANUAL Machine Type: PD22I / PD22P
PD22 I P OM 1.01 EN Ver 1.01 Date 24-08-2006 Page 10 of 21
6 DISPENSING WITH PD22
For optimal dispensing with the PD22, the following should be observed:
6.1
Vessel placement
6.2 Tubes
6.3 Nature of fill media
6.4 Priming tubes
6.5 Drip
6.6 Hard feed
6.1 Vessel Placement
In order to build up adequate pressure and reduce friction, it is recommendable to place the
vessel containing fill media at the same level as pump head or preferably above the pump head
level. Placing the vessel higher than pump head level provides positive product support and
may reduce the calibration interval. It is also recommended to place the vessel as close as
possible to the pump on suction side.
Flexicon
Pump Head
Preferred Placement
of container
Normal Placement
of container
Suction side Pressure side
Fig. 6.1