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Features / benefits

Rapid determination of the best membrane for a particular
product for efficient process development

Small-scale, only one litre of material is required
Simple cleaning and maintenance protocols
Ability to determine effect of operating parameters on flux profiles
Uses a standard filtration size of 90mm enabling a wide range of filtration membranes to be used range of filtration membranes to be used
Supplied with a range of polymer membranes
Optional ceramic membrane available (FT17-5)
Suitable for microfiltration, ultrafiltration, nanofiltration and reverse osmosis membranes and pressures. Pressure operating range 0-40 bar
Variable retentate cross flow velocity over the filtration membrane
Data logging of filtration pressure, permeate mass, retentate flow rate, retentate temperature (optional)
Electronic balance to measure filtration performance (optional)
Buffer addition / Diafiltration capabilities
Optional retentate temperature control (FT17-15）

Description

The FT17 is available in two basic configurations. The standard FT17 is the simplest system. It uses a high pressure stainless steel piston
pump to circulate product from a feed vessel to the filtration assembly with simple on/off control. A backpressure valve is used to adjust the
transmembrane pressure with a maximum allowable system pressure of 40 bar (analogue pressure indicator). As standard the filtration
assembly works with polymer membrane filters (90mm diameter) and sample filters are included for microfiltration (MF), ultrafiltration (UF),
nanofiltration (NF) and reverse osmosis (RO). A wider range of filters are available on request.
The FT17-50 is an enhanced unit, with all the additional benefits of computer control, data logging and diafiltration capability. It includes
an electronic pressure sensor to measure filtration pressure (0-40 bar) and electronic temperature sensor (thermocouple) to measure retentate
temperature. It also includes a feed pump speed controller, which enables the retentate cross flow velocity over the filtration membrane
to be varied. There is also an electronic mass balance to measure the mass of permeate collected. This option also enables diafiltration using
a peristaltic pump and high level sensor.
The software can be used to define the mass of permeate collected prior to addition of water/buffer (batch diafiltration). The data from all
these is logged in the software enabling plotting of permeate flow rate with time so that the effect of variables (filtration pressure, cross flow
velocity, product temperature and diafiltration) on process performance can be determined. Communication to the PC (not supplied) is via an
internal USB interface.
FT17-5 Ceramic membrane filtration can be examined with the option
FT17 5, which is supplied with a 15 kDa cut-off filter (other filter cut-offs are available on request). This accessory can be used with both FT17
and FT17-50.
FT17-15 Enables temperature control of the retentate by connecting a recirculating chiller to the jacket of the feed vessel. This enables filtration
at operating temperatures between 5 and 60 °C.
An analogue temperature gauge indicates the retentate temperature unless FT17-50 is specified in which case the temperature is measured
by a thermopcouple and displayed on the software. This accessory requires the FT17-50 system.

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