Multifors 2 - Parallel Bench-top Bioreactor
Setup and Function
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28 March 2018
Elements of the valve assembly
1 Air filter
2 Check valve
3 Luer activated sample valve
4 T-piece
5 Silicone hose
The valve assembly consists of a T-piece, two check valves, a
Luer-activated automatic sample valve, an air filter, a length of
hose as an adapter for the syringe and tubing for connection to the
sample dip tube in the vessel
Principle of function
Liquid culture samples are taken from the sidearm of the T-piece
with the Luer fitting using a syringe. The Luer-activated, automatic
sample valve opens by putting the Luer connector of the syringe
into the valve and closes by removing the syringe. No further han-
dling is necessary.
Unintentional re-introduction of the sample material once it has
been withdrawn is prevented by a check valve. Thus, contamina-
tion of the bulk culture is impossible. Mis-operation of the sampling
system has been excluded by design, in order to obtain the maxi-
mum operation safety and user friendliness.
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