Parr Instrument 4848B - Manual (Page 7)

4848B Reactor Controller
w w w . p a r r i n s t . c o m 5
User’s Responsibility
All Parr Reactors and Pressure Vessels are designed
and manufactured with great care to assure safe
operation when used within their prescribed tem-
perature and pressure limits.
But… the basic responsibility for safety when us-
ing this equipment rests entirely with the user; who
must:
1. Select a reactor or pressure vessel that has the
capability, pressure rating, corrosion resistance,
and design features that are suitable for its
intended use. Parr engineers will be glad to dis-
cuss available equipment and material options
with prospective users, but the fi nal responsi-
bility for selecting a reactor or pressure vessel
that will perform to the user’s satisfaction in any
particular reaction or test must rest with the user
- not with Parr.
2. In exercising the responsibility for the selection
of pressure equipment, the prospective user
is often faced with the choice between over or
under-designed equipment. The hazards intro-
duced by under-designed pressure vessels are
readily apparent, but the penalties that must be
paid for over-designed apparatus are often over-
looked. Recognizing these criteria, Parr reac-
tors and pressure vessels are offered in several
different styles, each designed for convenient
use in daily operation within certain temperature
and pressure limits, using gaskets, closures, and
other elements carefully selected for safe opera-
tion within the limits specifi ed for that design.
But in order to preserve the validity of these de-
signs, all temperature and pressure limits must
be observed, and no attempt should be made to
increase these limits by making alterations or by
substituting components which are not recom-
mended by Parr Instrument Company.
3. Install and operate the equipment within a
suitable barricade, if required, with appropriate
safety accessories and in full compliance with
local safety codes and rules.
All standard Parr pressure vessels are provided
with either suitable relief device or a means to
attach one (typically in the form of a plugged
opening). When a pressure vessel is delivered
without a pressure venting device, it is the cus-
tomer’s responsibility to provide pressure relief
in order to protect the operator and the equip-
ment from destructive high pressures. If you
need more information or need help in selecting
a proper relief device, please contact Parr Instru-
ment Company.
4. Establish training procedures to ensure that any
person handling the equipment knows how to
use it properly.
5. Maintain the equipment in good condition and
establish procedures for periodic testing to be
sure the vessel remains structurally sound.
Unpack Carefully
Unpack the equipment carefully and check all the
parts against the packing list. If shipping damage
is discovered, report it immediately to the deliver-
ing carriers. Examine the components closely for
any loose parts or shipping damage and be sure to
check all layers of packing materials thoroughly so
as not to overlook any parts which might otherwise
be discarded.