Minifors 2 - Benchtop Bioreactor
Accessories
Page
50
of
214
07 February 2019
5.7 Addition Port Adapters and Feed Needles
Addition port adapters and feed needles are used to feed liquid into
the culture vessel. They each come with a tubing connection, are
fitted with a fixed O-ring and are mounted into the four 7.5 mm
ports in the vessel top plate. A single fastening screw is used to
fasten all four addition port adapter(s) and/or feed needle(s) in
place.
Addition port adapter Ø 7.5 mm
Inside diameter
2 mm
Hose connection outside diame-
ter
4 mm
Installation depth
17 mm
Addition port adapters protrude as far as the head space of the
vessel, and have very sharp ends with slanted points.
Each culture vessel comes with four addition port adapters as
standard.
Feed needle Ø 7.5 mm
Inside diameter
2 mm
Hose connection outside diame-
ter
4 mm
Feed needles protrude to below the minimum fill level (= min. work-
ing volume) of the culture vessel.
This method of adding liquid allows more precise and regular dos-
ing even when handling small volumes as, unlike the port adapter,
the feed needle does not drip.
INFORMATION
The illustration on the left shows only the upper section of the
feed needle.
