45
Choice of filter plate material
Reactor-Ready filter plates and accompanying gaskets are available in both PTFE and PEEK.
PTFE offers the highest level of chemical compatibility, however, its reduced mechanical stability lowers
its operating temperature range.
• PEEK filter plate temperature range: -30°C to +180°C
• PTFE filter plate temperature range: -30°C to +120°C
For processes requiring maximum chemical compatibility, the PTFE filter plate and gasket should be
used. For processes requiring an operating temperature above +120°C, the PEEK filter plate and gasket
should be used.
Note: It is important that the gasket and plate material are matched.
Choice of filter membrane material
A range of filter membranes are available for use with your Reactor-Ready filter vessel.
Polyester membranes offer a cost-effective solution for general use, and are available in a range of
different porosities. For operations requiring maximum chemical compatibility, a PEEK membrane is
recommended.
Polyester and PEEK filter membranes for DN150
1µm polyester (Pack of 3)
RR171064
5µm polyester (Pack of 3)
RR171066
10µm polyester (Pack of 3)
RR171068
20µm polyester (Pack of 3)
RR171070
35µm PEEK (Pack of 3)
RR171074
40µm polyester (Pack of 3)
RR171072
Filter Membrane Evaluation Kit (Pack of 6): Includes one of each of the filter membranes above.
RR170030
If necessary, you can use your own filter membrane material, but it must be cut to the correct size to fit
the Reactor-Ready filter plate. This is best achieved by using the filter plate gasket as a template.
Installing a cold trap
To protect your vacuum pump, and to enhance the performance of your filtration system, it is
recommended that you install a cold trap between the collection vessel and your pump, using a Radleys
Cold Trap Kit (see page 46). This minimises the amount of vapour entering the pump, thereby protecting
the internal components from chemical attack and reducing any residual vapour pressure which may
reduce the vacuum achievable.
To install your cold trap, cut a piece of vacuum tubing to a suitable length and connect one end to the
sidearm of the collection vessel. Attach the other end of the tubing to the inlet connector on the cold
trap.
Cut a second length of tubing and connect one end to the outlet on the cold trap and the other end to
the connector on your vacuum pump.
To Next Page
Loading...
