Venting the vacuum pump, Electrical connection, Chemical resistance of freeze dryer components – Labconco FreeZone Bulk Tray Dryer 78060 Series User Manual

Page 13

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Chapter 3: Getting Started

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9

Venting the Vacuum Pump

If any materials will be placed in the Bulk Tray Dryer that can liberate
hazardous gases when heated, the vacuum pump exhaust must be vented to a
fume hood or other ventilation device.

Electrical Connection

Plug the power cord into the receptacle on the back of the Bulk Tray Dryer and
plug the other end into a suitable power receptacle.

DO NOT ATTEMPT TO CONNECT THE BULK TRAY DRYER INTO THE
FREEZONE FREEZE DRY SYSTEM.

Chemical Resistance of Freeze Dryer Components

The FreeZone Freeze Dry System and Bulk Tray Dryer are designed to be
chemically resistant to most compounds that are commonly used in freeze drying
processes. However, by necessity, the Freeze Dryer is comprised of a number of
different materials, some of which may be attacked and degraded by certain
chemicals. The degree of degradation is dependent on the concentration and
exposure duration. Some of the major components of the FreeZone Freeze Dry
System that are susceptible to degradation are as follows:

Acids

Buffers

Solvents

Component Material

Acetic

Acid 20

%

Formi

c Ac

id

Trifluoroa

ceti

c Acid

(TFA)

Calcium Chlori

de

Sodium P

hosp

h

ate

Aceton

e

Aceton

ittir

le

Carbon Tetrochloride

Cyclohexane

Dioxane

Methyl t-Butyl

Ether (BTBE)

P

yr

idine

Valve

Stem Acetal

C

D

D

D

D

Collector*
Lid & Door

Acrylic

D

D

D

D

Hoses,
Gaskets &
Valve Bodies

Neoprene

C D D C C D D D C D

Flask Top

Silicon
Rubber

C D D D D D C D

Chamber &
Fittings

Stainless

Steel

C

* An accessory glass lid is available for the Freeze Dry base units.
C – Moderate degradation; Limited use.
D – Severe degradation; infrequent use recommended; immediate

thorough cleaning

required.

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