11.1 Materials of construction
The wetted components of the Reactor-Ready reaction vessels are type 3.3 borosilicate
glass and fluoropolymer.
11.2 Vacuum & Pressure
Unless stated otherwise, Radleys reaction vessels are suitable for use under vacuum, but
not for use under positive pressure of contents. The maximum allowable jacket pressure is
0.5barg.
11.3 Use of zero dead space stopcock
The Reactor-Ready vessel drain valve should only be operated by hand and not with the use
of tools. If the piston cannot be inserted or removed easily, do not attempt to force it. In this
instance please contact your local distributor or email [email protected].
When closing the valve the piston will reach the closed position and the user will feel
resistance. The piston does not need to be tightly closed to provide a seal – in fact this can
lead to breakage of the glass thread and should therefore be avoided. Once the piston is fully
closed (gently - with fingers only) the cap should be unscrewed by a ¼ turn to prevent
stressing the thread.
The drain valve sealing o-ring is FEP encapsulated silicone. Although this offers excellent
chemical resistance and is hard wearing, it may not suit all applications. Alternative drain
valve seals are available. Please contact your distributor or email [email protected] for
details and technical advice.
11.4 Safe Delta T (
Δ
T)
To limit the potential stress (and therefore vessel breakage) caused by a big difference in
temperature between the contents temperature and the jacket temperature, the
Δ
T (Delta-T
= the difference between the two temperatures in K) should be limited to our recommended
50K (with Huber Unistats this can be done using the Delta-T limiter, found under “Limits” in
the Nuevo menu or as function 18 in older units).
Please note that this can only be achieved if the contents temperature is being monitored.
If the internal temperature is not being monitored (for instance if the vessel is empty) then
great care should be taken to cool or heat the vessel in a controlled way to prevent thermal
shock. This may be achieved by either tempering in stages or by use of a ramp function.
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11. General Information
Reactor-Ready - Lab Reactor
11.3
