PureTec

4.0 500 ml Diafiltration Sample Reservoir / Mixer.
This graduated reservoir resides on a magnetic stirrer with its own power supply
and a magnetic stir bar is included. It is constructed of FDA approved polysulfone
and can be easily sanitized using alcohol, bleach or dilute sodium hydroxide. It
has 5 female Luer ports, all of which may be used with 2-way valves.
On the lid is the Air Vent with its valve and filter, the Exchange Buffer Inlet port with
a valve, as well as an alternate Retentate Return port. This lid is sealed to the
reservoir with a pair of o-rings, and easily lifted off the top for filling and cleaning.
Note: Seal quality is improved by wetting the o-rings with distilled water
immediately before use.
The alternate Retentate Return port is used in high-flow (>500 ml/min.) diafiltration
applications to ensure complete mixing of the retentate.
The bottom of the reservoir also has 2 ports. The Outlet port, nearest the pump
head, is where the tubing that passes through the pump head to the inlet of the
filter is attached. The Return port has a valve used when emptying the system,
and is where the Retentate Return line from the filter cartridge is usually attached.
The position of the valves and the proper plumbing of the system are critical to its
proper use.
The vessel is also available in a 50 ml size, and a larger 1000 ml size that is
twice the height of the standard one.
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