Parr Instrument 4560 User Manual

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4560 Mini Bench Top Reactors
Parr Instrument Company
Revision 6-28-02
PERIODIC PRESSURE TESTS
Each cylinder used in a Parr stirred
reactor is tested under hydrostatic pressure
to 1.3 times its maximum rating before it is
released from the factory. Micrometer
caliper measurements are taken during this
test to check the deflection of the walls of
the cylinder under pressure. Excessive
deflection or failure of the metal to resume
its original dimensions after pressure is
released indicates that a cylinder is
potentially unsafe and it will be rejected.
Similar tests should be made at regular
intervals during the life of each cylinder, and
particularly whenever the user suspects that
the equipment has been over-stressed or
damaged.
Some laboratories maintain hydraulic
test facilities and make it a rule that all
pressure vessels must be tested at regular
intervals. Records are kept of deflections at
specific test pressures so that any increase
in deflection becomes a warning that the
metal has lost strength. Any cylinder which
fails to return to its original dimensions after
application of the prescribed hydrostatic test
should be discarded as unsafe for further
use.
Users who do not have pressure test
facilities can return any Parr pressure vessel
to the factory for hydrostatic testing and
overhaul. This should be done whenever
the metal shows excessive damage from
corrosion or whenever an over-pressure or
other unusual occurrence raises any safety
questions. Apparatus returned for testing
and overhaul should be shipped prepaid to
the Parr Instrument Company,
211-53
rd
Street, Moline, Illinois 61265. An
order or letter of instructions should be
mailed to the same address, as no repair
work will be started without specific
instructions. A return authorization number
is required as well as a certificate of
cleanliness signed by a responsible user.
ACCESSORIES
Liners
Glass or PTFE liners can be
furnished to fit most Parr reactors. These
liners slide into the cylinder. Although they
will not keep corrosive vapors from reaching
the surfaces of the cylinder and head, they
make it much easier to add and remove
liquid reactants, and they give some
protection to the cylinder when working with
corrosive solutions. It must be noted,
however, that adding a PTFE liner will slow
the heat transfer rate into the vessel, and it
may be necessary to adjust the temperature
control method to prevent overheating.
Liner Part Numbers
Fits
ID
Cylinder
Size
Glass
Liner
PTFE
Liner
2.06" 100 mL 762HC7 762HC7HA
2.5" 160 mL 762HC8 762HC8HA
2.5” 300 mL 762HC 762HC4HA
2.5" 450 mL 762HC2 762HC5HA
2.5" 600 mL 762HC3 762HC6HA
Spare Parts Kit
Spare parts kits are available for
these reactors. The kits will provide a
reserve supply of parts and tools sufficient to
handle most normal replacements and
emergency repairs during a year of heavy
usage.
The kits contain small perishable
items required for continuous operation
including gaskets, bushings, rupture discs
and seals. They can be ordered from any
Parr Dealer or direct from the Parr
Instrument Company. The order must
specify the reactor size and indicate type of
rupture disc, stirrer drive and whether it has
a flat-gasket or O-ring closure. It is most
advantageous to provide the complete
vessel number from the head or cylinder.

Parr Instrument 4560 Specifications

General

Brand	Parr Instrument
Model	4560
Category	Laboratory Equipment
Language	English