4530
Floor Stand Reactors
Operating Instruction Manual
388M
Floor Stand Reactors
Table of Contents
PREFACE
Scope — 3
Related Instructions — 3
Safety Information — 3
General Specifi cations — 3
Electrical Ratings— 3
Explanation of Symbols — 4
Environmental Conditions — 4
Provisions for Lifting and Carrying — 4
Intended Usage — 4
Cleaning & Maintenance — 4
User’s Responsibility — 5
Unpack Carefully — 5
INSTALLATION
Pressure and Temperature Limits — 6
ASSEMBLE THE REACTOR — 6
IDENTIFY THE VALVES
Gas Inlet Valve — 8
Gas Release Valve — 8
Liquid Sampling Valve — 8
OTHER VESSEL HEAD FITTINGS
Safety Rupture Disc — 9
Type J Thermocouple — 9
Gage and Valve Adapters — 9
HOW TO USE THE VESSEL
Fixed Head Vessels — 10
To open the Vessel — 10
Before Closing the Vessel— 10
To Close the Vessel— 10
Removable Head Vessels — 10
To Open the Vessel— 10
Before Closing the Vessel— 10
To Close the Vessel— 10
Sealing Vessels with PTFE Gaskets— 10
Gas Connections— 10
Pressurizing the Vessel — 11
Do Not Overfi ll the Vessel— 11
Releasing Pressure— 11
Withdrawing Liquid Samples— 11
Initial Operating Test— 11
ACCESSORIES
Internal Cooling Coils — 12
Variable Speed Electric Motor — 12
Air Motor — 12
Liners — 12
Spare Parts Kit — 12
EXPLOSION PROOF OPERATION — 13
PERIODIC PRESSURE TESTS — 13
GENERAL MAINTENANCE NOTES — 14
PARTS LISTS
Internal Fittings — 16
External Fittings — 17
Removable Head Style Parts Lists — 18
Fixed Head Style Parts Lists — 20
OVERARM PARTS LIST — 23
COOLING COIL PARTS LIST — 25
HEATERS PARTS LIST — 26
Customer Service
Questions concerning the installation or operation of this instrument
can be answered by the Parr Customer Service Department:
1-309-762-7716 • 1-800-872-7720 • Fax: 1-309-762-9453
E-mail: parr@parrinst.com • http://www.parrinst.com
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Parr Instrument Company
Floor Stand Reactors
PREFACE
Scope
These instructions describe the installation, operation and maintenance of Parr Series 4530 Floor
Stand Reactors offered in one and two liter sizes.
They cover the basic steps to be followed installing these reactors and describe the function of
all standard components. They are intended to be
used in conjunction with several related instruction
sheets listed in the following section. This information describes several components which are common to most Parr pressure reaction equipment and
includes safety precautions and other related information applicable to all reaction laboratories. The
users should study all of these instructions carefully
before starting to use these vessels so that they will
fully understand the capabilities and limitations of
the equipment.
Related Instructions
The following Parr publications are also included to
further your understanding of this instrument and
its component parts:
No. Description
201M Limited Warranty
230M Safety Precautions to be observed when
operating Pressure Reaction Equipment
231M Operating Instructions for Parr Safety
Rupture Discs
234M Operating and Maintenance Instructions
for Parr Magnetic Drives
323M Operating Instructions for Parr Pressure
Relief Valves
548M Operating Instructions for 4848 Reactor
Controllers
575M Operating Instructions for 4848B Reac-
tor Controllers
F0042 Health & Safety Assurance Certifi cation
Safety Information
To avoid electrical shock, always:
1. Use a properly grounded electrical outlet of correct voltage and current handling capability.
2. Ensure that the equipment is connected to electrical service according to local national electrical codes. Failure to properly connect may create
a fi re or shock hazard.
3. For continued protection against possible hazard, replace fuses with same type and rating of
fuse.
4. Disconnect from the power supply before maintenance or servicing.
To avoid personal injury:
1. Do not use in the presence of fl ammable or combustible materials; fi re or explosion may result.
This device contains components which may
ignite such material.
2. Refer servicing to qualifi ed personnel.
General Specifi cations
Electrical Ratings
Controller ratings are found in the Operating Instructions for the controller supplied with your reactor and on the controller data plate.
Before connecting a controller to an electrical outlet,
the user must be certain that the electrical outlet has
an earth ground connection and that the line, load
and other characteristics of the installation do not
exceed the following limits:
Voltage: Fluctuations in the line voltage should not
exceed 10% of the rated nominal voltage shown on
the data plate.
Frequency: Controllers can be operated from either
a 50 or 60 Hertz power supply without affecting their
operation or calibration.
Current: The total current drawn should not exceed
the rating shown on the data plate on the controller
by more than 10 percent.
Thermocouple: Unless otherwise specifi ed, all
Series 4848 Controllers operate with a Type J (ironconstantan) thermocouple. The total resistance of
the thermocouple and the lead wires should not exceed 20 ohms. If the resistance of the thermocouple
circuit is higher, it will reduce the sensitivity of the
control system.
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3
Floor Stand Reactors
Explanation of Symbols
II On position, full power heater switch
I On position, half power heater switch
O Off Position
~ Alternating Current (AC)
This CAUTION symbol may be present on the Product Instrumentation
and literature. If present on the product, the user must consult the appropriate part of the accompanying product literature for more information.
This CAUTION symbol indicates that the surface may be hot.
Protective Earth (PE) terminal. Provided for connection of the Protec-
tive Earth (green or green/yellow) supply system conductor.
Environmental Conditions
This instrument is intended to be used indoors.
Operating: 5 ºC to 35 ºC; maximum relative humidity of 80% non-condensing. Installation Category II
(over voltage) in accordance with IEC 664.
Pollution degree 2 in accordance with IEC 664.
Altitude Limit:
Storage: -25 °C and 65 °C; 10% to 85% relative hu-
midity.
Provisions for Lifting and Carrying
The 4530 Floor Stand Reactors and its components
are very heavy. Before moving ensure all cables are
disconnected. Use proper and safe lifting techniques
when installing or moving the 4530 Reactor and/ or
its components.
0 to 6000 feet above sea level.
Caution!
Do not use in hazardous atmospheres.
Intended Usage
This system has been designed for use as a high
pressure reactor system. It has been designed, built,
and tested to strict physical and electrical standards.
However, it is the user’s responsibility to install and
operate it in conformance with local pressure and
electrical codes.
If this equipment is used in a manner beyond its intended usage, the protection provided by the equipment may be impaired.
Cleaning & Maintenance
Periodic cleaning may be performed on the exterior
surfaces of the instrument with a lightly dampened
cloth containing mild soap solution. All power
should be disconnected when cleaning the instrument.
There are no user serviceable parts inside the product other than what is specifi cally called out and
discussed in this manual. Advanced troubleshooting
instructions beyond the scope of this manual can
be obtained by calling Parr Instrument Company in
order to determine which part(s) may be replaced or
serviced.
Ensure that any hot surfaces have had
adequate time to cool before cleaning
or maintaining the reactor and/or its
components.
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Parr Instrument Company
Floor Stand Reactors
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 temperature and pressure limits. But . . . the basic
responsibility for safety when using this equipment
rests entirely with the user; who must:
1. Select a reactor or pressure vessel which has the
capability, pressure rating, corrosion resistance
and design features that are suitable for its intended use. Parr engineers will be glad to discuss available equipment and material options
with prospective users, but the fi nal responsibility 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.
In exercising the responsibility for the selection
of pressure equipment, the prospective user is
often faced with a choice between over- or under-designed equipment. The hazards introduced
by under-designed pressure vessels are readily
apparent, but the penalties that must be paid for
over-designed apparatus are often overlooked.
2. 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 a 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 customer’s responsibility to provide pressure relief
in order to protect the operator and the equipment from destructive high pressures. If you
need more information or need help in selecting
a proper relief device, please contact Parr Instrument Company.
3. Establish training procedures to ensure that any
person handling the equipment knows how to
use it properly.
4. Maintain the equipment in good condition and
establish procedures for periodic testing to be
sure the vessel remains structurally sound.
Unpack Carefully
Recognizing these criteria, Parr reactors 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 operation
within the limits specifi ed for that design. But in
order to preserve the validity of these designs,
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 recommended by Parr Instrument Company.
Unpack the equipment carefully and check all the
parts against the packing list. If shipping damage
is discovered, report it immediately to the delivering carriers. The vessel, motor, heater, and temperature controller may be packed separately for
convenience in shipping, but these parts are easily
reassembled. 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.
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5
Floor Stand Reactors
INSTALLATION
Pressure and Temperature Limits
The working pressure and temperature at which any
reactor or pressure vessel can be used will depend
upon the design of the vessel and the materials
used in its construction. Since all materials lose
strength at elevated temperatures, any pressure
rating must be stated in terms of the temperature at
which it applies. The standard material of construction for Parr Instrument Company is Type 316 Stainless Steel.
Limits for vessels made of other materials and for
other operating temperatures can be obtained from
Parr Customer Service. No attempt should be made
to increase these limits by making alterations or by
substituting components that are not recommended
by the Parr Instrument Company. It must also be
understood that lower pressure and temperature
limits may be required for modifi ed reactors and for
vessels made of special alloys.
Limits for vessels will be determined by the physical characteristics of the vessel material and will be
prescribed on an individual basis.
The maximum working pressure and temperature
for any vessel is governed by the design of the
vessel and the strength of the material from which
it is constructed. There is also a close relationship
between working pressure and temperature since
the strength of any material will normally fall off
as the temperature is increased. Temperature and
pressure limits are also affected by the physical
properties and temperature limits of the gaskets and
seals used in the vessel, and by any valves, gages
or other fi ttings attached to the vessel. Obviously,
the safe operating pressure of any system can be no
higher than that of its lowest rated component.
The standard material of construction for Parr Instrument Company is Type 316 Stainless Steel. The
working pressure and temperature in these one and
two liter reactors must not exceed the following
maximum limits:
Pressure Vessel and Temperature Limits
Vessel
Material
T316SS 1900 psig 350 °C PTFE Flat Gasket
T316SS 1900 psig 275 °C FFKM O-ring
T316SS 1900 psig 220 °C FKM O-ring
Maximum
Pressure
Maximum
Temperature
ASSEMBLE THE REACTOR
These reactors require at least 10 square feet of
workspace in a well-ventilated area with convenient
access to an electric outlet, running water and a
drain. This unit needs to be placed at least 10 inches
away from walls or fl ammable materials.
1. Set the Temperature Controller near the reactor,
leaving a space of at least six inches between
the controller and the base of the reactor so
that the controller will not be unduly affected by
radiant heat. Connect the reactor to the controller using information contained in its Instruction
Manual No. 548M or follow the steps below.
Labeled connections are provided on the rear
panel of the controller.
Parr Cooling Only:
The Parr Cooling output connector is to be used
only with Parr Instrument Company cooling solenoid valve assemblies supplied with the appropriate
cooling power cord.
All Parr reactors show the maximum safe operating
pressure and temperature imprinted on the cylinder.
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Parr Instrument Company
Parr Heating Only:
The Parr Heating output connector is to be used
only with Parr Instrument Company heater assemblies supplied with the appropriate heater power
cord.
Floor Stand Reactors
This knob is attached to the upper drive shaft
and the universal coupling. Lifting the knob will
allow the alignment of the universal coupling
and the drive adapter attached to the magnetic
drive. Turn the knob to align the slot in the drive
adapter with the universal coupling.
2.
3. Connect the power cord from the heater into the
heater socket on the rear panel of the controller.
Motor:
Secure the clamp on motor cord to the
controller with the provided screw next to
the motor socket for safety purposes.
The Motor output connector is to be used only with
Parr Instrument Company motor assemblies supplied with the appropriate motor power cord.
2A. Vessels on movable cart.
The motor is contained in the overarm assembly
attached to the cart. The overarm assembly pivots to the rear to allow the vessel to be placed in
the heater. The overarm is then aligned atop the
vessel. Pull up on the release knob to allow the
upper drive shaft to be connected to the magnetic stirrer.
2B. Vessels on stationary stand.
Bolt the stand to the fl oor using the
holes in the base plate.
4. Plug the motor power cord into the motor socket
on the rear of the controller.
Secure the clamp on the motor cord
with the provided screw next to the
motor socket for safety purposes.
5. Note the voltage requirement on the controller
identifi cation label on the back panel, and then
plug the power cord into an appropriate outlet.
Power for these reactors should be drawn from
a 3-slot, grounded outlet capable of carrying up
to the full current rating of the system.
6. Connect the thermocouple extension wire to
both the thermocouple and to the controller in
the “Primary Temp Input” position on the rear
panel. Insert the thermocouple into thermowell.
7. Connect leads from accessory packages such as
tachometer, pressure transducer and high temp
cut-off to the designated positions on the back
panel of the 4848 Controller.
Loosen the panel screw holding the vessel
retainer to the front midplate. Open the vessel
retainer to allow the placement of the vessel assembly. If fi xed head style, position the head in
the slot located in the front midplate. If removable head style, place vessel assembly such that
the split ring rests on midplate bracket. After
installing the vessel, close the vessel retainer
and retighten the panel screw. Pull up on the
release knob located at the top of the belt guard.
8. Connect cooling water to internal cooling coil if
installed.
9. Connect cooling water to the magnetic stirrer.
See manual no. 234M.
10. Connect tubing to the rupture disc outlet and run
to a safely vented area. See manual no. 231M.
11. Using the switch on the Temperature Controller,
turn on the motor for a short run to check the
stirrer drive system.
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Floor Stand Reactors
IDENTIFY THE VALVES
Gas Inlet Valve
The gas inlet valve is easily identifi ed when the
bomb is open by noting that it is connected to a dip
tube that extends to a point near the bottom of the
bomb cylinder. This is an angle valve with an attached fi tting which provides a socket for attaching
the A495HC pressure hose furnished with the reactor.
Gas Release Valve
The gas release valve is connected to an opening
that will not have any fi tting installed on the underside of the head. Gas released from this valve
will be drawn from the top of the reactor. The gas
release port does include a 1/8
th
NPT thread on the
Pressure Gage
underside of the head where an additional dip tube
or catalyst addition device may be added. If one of
these additions is made to this port then an additional valve must be added to the gage adapter to
be used as a gas release valve.
Liquid Sampling Valve
The liquid sampling valve is attached to the same
fi tting as the gas inlet valve and connected to the
same dip tube. With this arrangement, incoming gas
is always introduced below the surface of the liquid
and the operator is provided with a means for clearing the dip tube to be sure that any sample taken
during a run will be representative of the charge.
This can be done by opening the gas valve momentarily to force any liquid in the dip tube back into
the reactor before withdrawing a sample from the
sampling valve.
Plug (extra port)
Gas Release Valve
Stirrer Shaft Assembly
Adjustable Impeller
Thermocouple
Gas Inlet Valve
Coupling for Gas Hose Connection
Liquid Sampling Valve
Adapter Bushings
Thermowell
Dip Tube with Nut
Stirrer Support Bracket
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Parr Instrument Company
Floor Stand Reactors
OTHER VESSEL HEAD FITTINGS
Safety Rupture Disc
There is a safety rupture disc attached to the head that
is intended to rupture and release the pressure before it reaches a dangerous level. A metal tag wired to
the safety head identifi es the burst pressure at room
temperature for that particular disc. A similar tag is
furnished with each replacement disc. This tag must
remain with the apparatus at all times so that both
present and future operators will be aware of the disc
rating. Users should read the discussion of rupture
discs given in the Instruction Sheet No. 231M for a
complete description of the characteristics of rupture
discs and the precautions to be observed when operating pressure equipment protected by this type of
safety device.
A typical pre-bulged disc can be used to 90% of the
rating on the tag. For additional protection, the user
should install an adequate and safe venting system
for removing any toxic, fl ammable or volatile material which would be released if the rupture disc should
burst. A connector for attaching 3/8” OD tubing to the
discharge port of the rupture disc is provided for this
purpose.
Type J Thermocouple
A Type J thermocouple in a 1/8” dia. stainless steel
sheath is furnished with the reactor. Insert this thermocouple into the head thermowell and connect it to the
thermocouple socket on the rear panel of the temperature controller using the A470E2 extension wire furnished with the reactor.
nished in a variety of ranges to meet individual needs.
Typically, the gage and the rupture disc are furnished
as matched ranges. For applications where a gage is
selected with a range under 1000 psi, a relief valve is
added and set to protect the gage. A 1000 psi rupture
disc is installed as the fail-safe vessel protection.
For highly corrosive applications where the vapor
phase might corrode the stainless Bourdon tube, Parr
offers isolator assemblies in a variety of materials.
These isolators with their internal piston isolate the
vapors from the gage.
The gage adapter includes a ¼” NPT side port with a
plug installed. This position may be used for a variety
of fi ttings such as a needle valve, pressure transducer
or relief valve.
Gage and Valve Adapters
The pressure gage and the combined gas inlet and
sampling valves are attached to the head with an
adapter which allows these fi ttings to be drawn up
tightly when facing in any direction. To attach these
fi ttings to the head, screw the gage or valves fi rmly
into the adapter, then run the 209HC4 bushing onto the
threaded stem as far as it will go. Screw this assembly
into the head until the nose of the adapter is seated;
then back it off until the valve or gage is facing in the
desired direction. Now hold the fi tting fi rmly in place
and close the joint by tightening the 209HC4 bushing.
This connection can be made and broken repeatedly
without destroying the sealing faces. A light coating of
thread lubricant, such as Parr No. 424HC2 High Temperature Anti-Seize Lube, applied to the threads and to the
nose of the adapter will help to obtain a tight joint.
Pressure Gage
The pressure gage furnished with this reactor has a
T316 Stainless Steel Bourdon tube. Gages are fur-
Note: Do not use PTFE tape on the straight thread
connections of the coned adapters and mating bushings. PTFE tape should only be used on the (NPT)
threads such as the needle valves or gage connection.
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Floor Stand Reactors
HOW TO USE THE VESSEL
Fixed Head Vessels
First, lower the heater and push it aside before attempting to remove the split ring and cylinder. Raise
the cylinder support holder to the bottom of the
cylinder. Open the gas release valve to discharge
any internal pressure.
To open the Vessel
Remove the split rings. For vessels with a confi ned,
fl at PTFE gasket, loosen the six bolts. For vessels
with an O-ring closure, loosen the latches on each
side of the split rings. The split ring halves can now
be removed. The head with all attached fi ttings will
remain in place. The cylinder can now be lowered
away. Handle the cylinder carefully so as not to
damage the stirring shaft and other internals.
Before Closing the Vessel
Examine the head seal carefully to be sure that it
is in good condition. The seal should not have any
nicks or be hardened, discolored or deformed. Examine the mating surfaces on the cylinder and head
to be sure they are clean and free from burrs; then
raise the cylinder up to the head.
To Close the Vessel
Put the two split ring halves around the head and
cylinder fl anges and fasten the latches or tighten the
bolts as assembled before.
Removable Head Vessels
First, open the gas release valve to discharge any internal pressure. For vessels on a movable fl oor cart,
lift the vessel out of the heater before attempting
to remove the split ring and head. For vessels on a
stationary stand, loosen the panel screw holding the
vessel retainer, remove the vessel from the stand
and set it on a table.
Before Closing the Vessel
Examine the head seal carefully to be sure that it
is in good condition. The seal should not have any
nicks or be hardened, discolored or deformed. Examine the mating surfaces on the cylinder and head
to be sure they are clean and free from burrs. Then
carefully set head on cylinder.
To Close the Vessel
Slide the two split ring halves around the cylinder
and head fl anges. If equipped with a drop band, position the split ring halves such that the indentation
for one of the halves is located 180 degrees away
from the pressure gage. Slide the drop band over
the split ring halves and tighten the set screw lightly
to hold the band in place.
For vessels on a movable fl oor cart, place the vessel into the heater with the gage facing forward and
swing the drive arm into position, connecting the
rubber sleeve onto the spline coupling on the stirrer.
For vessels on a stationary stand, place the vessel
onto the midplate such that the drop band set screw
fi ts into the slot on the back of the midplate.
Note: The following steps are common to both
head confi gurations
Sealing Vessels with PTFE Gaskets
If your split ring has compression bolts, tighten each
of the bolts with the wrench furnished. Apply a fi rm
but hard pull to each bolt. Or, if a torque wrench
is available, apply 25ft-lbs to each bolt. Tightening
should proceed in a criss-cross pattern rather than
progressively around the circle. Let the vessel stand
for about fi ve minutes after the initial tightening;
then tighten the bolts again. This will compensate
for any tendency of the PTFE gasket to fl ow under
the loading pressure.
To Open the Vessel
Remove the split rings. For vessels with a confi ned,
fl at PTFE gasket, loosen the six bolts. For vessels
with an O-ring closure, loosen the latches on each
side of the split rings. The split ring halves can now
be removed. The head with all attached fi ttings is
free to be lifted from the cylinder. Handle the head
carefully so as not to damage the stirring shaft and
other internals.
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Parr Instrument Company
Gas Connections
Gas connections are dependent on applications.
For general usage, use the pressure hose furnished
with the reactor. Screw the Type “A” coned pressure
fi tting into the adapter attached to the gas inlet valve
and tighten the compression nut fi rmly. Do not use
any thread dope on the coned fi tting. The A495HC
pressure hose is made of reinforced Nylon that can
Floor Stand Reactors
be used at ambient temperature for all non-corrosive gases at pressures up to 2500 psig. For operations involving corrosive gases, this hose should
be replaced with an A490HC hose which has a PTFE
lining and a braided stainless steel outer covering. Both of these hoses have the same fi ttings. The
A506HC all metal hose is also available in stainless
steel and other corrosion resistant materials.
Pressurizing the Vessel
Check all valves carefully before admitting gas into
the system. The liquid sampling valve must remain
closed throughout the charging procedure. The gas
release valve must also be closed unless the vessel
is to be purged, or unless there is to be a continuous fl ow through the reactor during a run. Always
make certain that the pressure in the gas tank is
greater than the pressure in the vessel; otherwise
liquid will be forced out of the vessel and into the
gas tank when the inlet valve is opened. If there is
any possibility that the tank pressure might not be
high enough to force gas into the reactor, install
a one-way check valve (optional) in the gas line to
prevent any reverse fl ow. After the desired pressure
has been reached, close the valves and disconnect
the hose at the vessel end.
Alternate gas hoses with check valves are avalable
from Parr upon request.
Do Not Overfi ll the Vessel
Always watch the pressure gage closely when admitting gas so as not to exceed the maximum working limit. Remember that any subsequent increase
in temperature will raise the pressure. Also, be
sure that the amount of liquid placed in the vessel
is carefully controlled. As a general rule, the liquid
charge should not exceed two-thirds of the capacity of the cylinder. Too much liquid in the vessel can
lead to development of dangerous pressures if suffi cient space is not provided for expansion when the
liquid is heated. This hazard is explained in greater
detail in a warning statement included in the Safety
Instruction Manual No. 230M.
Releasing Pressure
Use the gas release valve to reduce the pressure in
the vessel if the reactor is accidentally overcharged
when fi lling. Use this valve also to release any excess pressure during a run and to exhaust the vessel
at the end of a run. If the discharge gases are fl ammable or toxic, discharge to an exhaust hood or to
any other safe release point.
Withdrawing Liquid Samples
Liquid samples may be withdrawn from the sampling valve attached to the same adapter as the gas
inlet valve whenever the vessel is pressurized. Always close the inlet valve before withdrawing a liquid sample and open the sampling valve cautiously
because liquid will be discharged with considerable
force. Be particularly careful if the temperature of
the sample is above its boiling point at atmospheric
pressure. If so, it will “fl ash” and be lost as soon
as it is released from the vessel. This problem can
be avoided by connecting an optional 4351 Sample
Collection Vessel to the sampling valve to collect the
liquid into an appropriate receiver. The addition of
a small amount of gas can be used to clear the dip
tube between liquid samples so that the next sample drawn through the tube will truly be representative of the mixture..
Initial Operating Test
Read all operating instructions carefully so as to be
well acquainted with the correct procedures for handling the vessel and for operating the controller and
other accessories. An initial operating test should
be made, with only water, to check the apparatus
before starting the fi rst experimental runs. For this
initial test, fi ll the cylinder not more than half full
of water and run the temperature up to 150ºC while
checking the apparatus for leaks and observing the
performance of the temperature controller.
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11
Floor Stand Reactors
ACCESSORIES
Internal Cooling Coils
Cooling coils can be installed in any of these reactors. Reactors purchased without a coil can have this
feature added.
Standard cooling coils are made in serpentine
confi gurations. A serpentine coil offers a smaller
but effective cooling area and it does not interfere
with the use of a liner. An optional spiral coil can
be provided, which offers more surface area than a
serpentine coil but it is more diffi cult to clean and,
when installed, it prevents the use of some internals
and liners. Plugs are available to seal the cooling
coil opening when the coil is not used.
Variable Speed Electric Motor
Reactors are normally equipped with a DC variable
speed motor supplied and controlled through the
Series 4848 controller. Instructions for connecting
and operating these motors are included in the controller instruction sheet No. 548M. This motor is usually installed in a drive system designed to produce
stirring speeds from 0 to 600 rpm. Higher speeds
(1000 or 1700 rpm) can be obtained by substituting
larger diameter motor drive pulleys.
Air Motor
Variable stirring speeds from 100 to 2000 rpm can
be obtained by replacing the standard motor with
an A1393HC air motor. This motor operates on
compressed air, which must be supplied at 40 psig
minimum pressure with at least 10CFM available at
that pressure. It is furnished with a speed control
valve and oiler.
To operate reactors equipped with an air motor, connect the air hose to a compressed air line. Fill the
oiler with SAE 10 oil and adjust the oiler to feed one
drop per minute into the air stream. For long continuous runs at high speeds, the oiling rate should
be increased to three drops per minute. If the motor
becomes sluggish, fl ush it with a non-fl ammable
solvent in a well-ventilated area. Disconnect the air
line and muffl er and pour a small amount of solvent into the inlet port. Rotate the shaft by hand in
both directions for a few minutes; then connect the
air line and run the motor until there is no further
trace of solvent in the exhaust. If the muffl er felts
are dirty, wash them in solvent or replace them.
Re-lubricate the motor with a squirt of oil into the
chamber and reassemble. If it becomes necessary to
disassemble the motor to replace the vanes, follow
directions given in the instruction sheet published
by the Gast Manufacturing Corp., Benton Harbor,
Michigan.
Liners
Glass or PTFE liners can be furnished to fi t 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 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
Cylinder Size Glass Liner PTFE Liner
1000 mL 398HC 398HCHA
2000 mL 399HC 399HCHA
Spare Parts Kit
Parr can furnish spare parts kits for these reactors
which will provide a reserve supply of parts and
tools suffi cient to handle most normal replacements
and emergency repairs during a year of heavy usage.
These kits contain replacement gaskets, packing, Orings, shafts, bearings, and rupture discs. 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 fl at-gasket or Oring seal. Always provide the reactor serial number
(stamped on head and cylinder) to assure receipt of
proper replacement parts.
12
Parr Instrument Company
EXPLOSION PROOF OPERATION
Floor Stand Reactors
sphere. Users who consider this a signifi cant
hazard are urged to contact the Parr Instrument
Company for further discussion and suggestions
that might be helpful.
If the local safety code requires that equipment
installed in the user’s laboratory must be explosion
proof, there are four possible ignition hazards to be
considered:
1. The Motor
The standard adjustable speed motor is not
explosion proof, yet these motors are not unduly
hazardous if operated in a well ventilated location where care is taken to prevent the accumulation of explosive gases or vapors. To eliminate
any possible spark hazard originating at the motor, Parr can furnish an air motor as described
previously, or the reactor can be equipped with
a variable speed, explosion proof motor that
is approved for use in Class 1, Groups C & D,
and Class 2, Groups E, F, & G atmospheres.
Explosion proof motors are furnished with a
temporary power cord and plug which are not
explosion proof. The user should remove this
temporary wiring and replace it with an explosion proof switch and wiring which will comply
with the local electrical code.
2. The Temperature Controller
The Series 4848 Temperature Controllers furnished with these reactors contain switches and
other elements that are not explosion proof.
The minimal spark hazard associated with these
units can be resolved by installing the controller
in a remote location outside of the hazardous
area or by enclosing it in an approved explosion proof housing. If enclosed within a positive
pressure, clean air housing, the discharge from
the housing must be directed into a safe area. If
requested, Parr will furnish the long lead wires
needed to mount the controller in a remote
location. If the controller is to be installed in an
explosion proof housing, the user must provide
the necessary housing and installation.
3. The Heater
The elements in the heater could be dangerous
in an explosive atmosphere if the surface temperature of the element becomes high enough
to ignite fl ammable vapors. This hazard must be
evaluated for each individual installation since
major modifi cations are required if the heater
must be isolated from the surrounding atmo-
4. The Wiring
The wiring provided with the standard reactor
systems does not meet the standards prescribed
for explosion proof operation. Optional, intrinsically safe barriers are available.
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 defl ection of the walls under
pressure. Excessive defl ection 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
defl ections at specifi c test pressures so that any
increase in defl ection becomes a warning that the
metal has lost strength. Any cylinder that 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. To
return a vessel for repair, contact Parr Instrument
Company for a return authorization number. Ap-
paratus returned for testing and overhaul should
be shipped prepaid to Parr Instrument Company,
211-53rd 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
specifi c instructions and a Health & Safety Assurance Certifi cation form (F0042) signed by a responsible user.
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13
Floor Stand Reactors
GENERAL MAINTENANCE NOTES
1. Periodically inspect all electrical wiring and pressure connections for excessive corrosion. Suspect parts should be replaced by components
only supplied by Parr Instrument Company.
2. Always use appropriate wrenches on all fi ttings
and valves. Never use pliers or pipe wrenches.
3. Head and cylinder service fi xtures are available
for convenience and protection of components
during maintenance of your reactor.
4. To reinstall straight thread (NPS) fi ttings to the
head, screw the gage or valves fi rmly into the
adapter.
Run the bushing onto the threaded stem as
far as it will go. Screw this assembly into the
head until the nose of the adapter is seated;
then back it off until the valve or gage is facing
in the desired direction (no more than one full
turn). Hold the fi tting fi rmly in place and close
the joint by tightening the bushing. This connection can be made and broken repeatedly without
destroying the sealing surfaces. A light coating
of thread lubricant, such as Parr High Temperature Anti-Seize Lubricant, applied to the straight
threads and to the nose of the adapter will help
to obtain a tight joint.
8. Clean all threads and gas passages thoroughly
and remove all tape fragments when overhauling a vessel. An ultrasonic bath is excellent for
cleaning metal parts, but do not place a thermocouple probe, pressure gage, face seals or ball
bearings in an ultrasonic bath. Periodic cleaning
may be performed on the exterior surfaces of
the reactor stand with a lightly dampened cloth
containing mild soap solution. All power should
be disconnected when cleaning.
9. Routinely inspect cap screws on split ring closure for lubrication and cleanliness. These
screws should not be allowed to dry because
the threads will seize. Regularly apply Parr
High Temperature Anti-Seize Lubricant (Parr No.
424HC2) before this happens.
10. To operate reactors equipped with an air motor,
connect the air hose to a compressed air line.
For best torque and speed control the piping to
the motor should be at least 3/8” IPS or larger.
Fill the oiler with SAE 10 oil and adjust the oiler
feed one drop per minute into the air stream.
For long continuous runs at high speeds, the oiling rate should be increased to three drops per
minute. If the motor becomes sluggish, fl ush
it with a non-fl ammable solvent in a well ventilated area.
Note: PTFE tape should not be used on this joint.
5. NPT (National Pipe Taper) threads should not
be disassembled any more than necessary. It
will become increasingly diffi cult to maintain a
tight seal with these tapered threads if the joint
is made and broken repeatedly. Grafoil tape or
PTFE tape (if temp allows) should be used on all
NPT threads.
6. Do not use oil or anti-seize lubricant on threads
or fi ttings if the vessel is to be used with oxygen.
7. If your vessel is equipped with a loose compression ring be sure that it is in place on the head
before attaching any head fi ttings. The compression ring cannot be installed after fi ttings have
been screwed into the head.
14
Parr Instrument Company
Disconnect the air line and muffl er and pour
a small amount of solvent into the inlet port.
Rotate the shaft by hand in both directions for
a few minutes; then connect the air line and
run the motor until there is not further trace of
solvent in the exhaust. If the muffl er is dirty,
replace it. Relubricate the motor with a squirt of
oil into the chamber and reassemble.
11. If servicing assistance is needed, contact Parr
Instrument Company directly at the address
shown on the back of these instructions.
Notes
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15
Floor Stand Reactors
PARTS LISTS
Reaction Vessel Parts List
Consult the itemized list for your reactor provided
along with this manual. For purpose of reactor iden-
tifi cation, the following abbreviation/codes are used:
FH - Fixed Head LD - Light Duty
RV - Removable Head HD - Heavy Duty
FG - Flat Gasket OS - O-Ring Seal
MD - Mag Drive FMD - Footless Mag Drive
* For parts made from alternate materials use the
codes shown below as a suffi x to the standard part
number.
CM - Alloy 400 CC - Alloy 20Cb3
CT - Alloy 600 CA - Titanium G2 or G4
CG - Alloy B-2 CH - Alloy C-276
CX - Zirconium
Cylinders
Part No. Description Code
236HC10 Cylinder, 1000 mL FG
236HC20 Cylinder, 2000 mL FG
2742HC10 Cylinder, 1000 mL OS
2742HC20 Cylinder, 2000 mL OS
Heads
Part No. Description Code
1370HC20 Head RVFG LD MD
1370HC25 Head RVFG LD FMD
755HC50 Head RVFG HD MD
755HC55 Head RVFG HD FMD
2252HC20 Head FHFG LD MD
2252HC25 Head FHFG LD FMD
2259HC20 Head FHFG HD MD
2259HC25 Head FHFG HD FMD
2740HC20 Head RVOS LD MD
2740HC25 Head RVOS LD FMD
2748HC20 Head FHOS LD MD
2748HC55 Head FHOS LD FMD
2750HC20 Head FHOS LD MD
2750HC25 Head FHOS LD FMD
2758HC20 Head FHOS HD MD
2758HC25 Head FHOS HD FMD
Internal Fittings
Dip Tubes
Part No. Description
257HC26 Dip Tube with nut, 1000 mL
257HC27 Dip Tube with nut, 2000 mL
Shafts
Part No. Description Code
352HC6 Stub Shaft, mag. drive RV LD
352HC9 Stub shaft, mag. drive FH LD
1025HC39 Upper Shaft FH HD
1025HC14 Upper Shaft RV HD
2141HC5 Shaft, 1000 mL FH LD FMD
2141HC6 Shaft, 2000 mL FH LD FMD
2141HC44 Shaft, 1000 mL MV LD FMD
2141HC45 Shaft, 2000 mL MV LD FMD
2135HC Shaft, 1000 mL FH HD FMD
2135HC2 Shaft, 2000 mL FH HD FMD
A449HC
A449HC2
A1030HC
A1030HC2
378HC Coupling, stirring shaft LD
379HC Pin, shaft, coupling LD
1028HC Coupling, stirrer shaft HD
1029HC Pin, shaft, coupling HD
447HC Shaft bushing, PTFE LD
1027HC Shaft, bushing, PTFE HD
448HC
448HC2
1025HC
1025HC2
A2148HC2
A2148HC3
A2138HC4 Impeller, 2” diameter HD FMD
A358HC2
A358HC5
358HC2F
Shaft assembly with coupling,
1000 mL
Shaft assembly with coupling,
2000 mL
Shaft assembly with coupling,
1000 mL
Shaft assembly with coupling,
2000 mL
Shaft with 447HC bushing,
1000 mL
Shaft with 447HC bushing,
2000 mL
Shaft with 1027HC bushing,
1000 mL
Shaft with 1027HC bushing,
2000 mL
Impeller with set screws,
2.28” diameter
Impeller with set screws, 2”
diameter
Impeller with set screws,
2.28” diameter
Impeller with set screws, 2”
diameter
Set screws for impeller
LD
LD
HD
HD
LD
LD
HD
HD
RV LD FMD
FH LD FMD
Stirrer Support Brackets
Part No. Description Code
A380HC Stirrer Support Bracket FG
A1404HC Stirrer Support Bracket OS
16
Parr Instrument Company
SEAL
CAP SCREW
DROP
BAND
SPLIT
RING
CYLINDER
SAMPLING/
INLET/TUBE
BRACKET
THERMOWELL
STUB SHAFT
IMPELLER
STIRRER SUPPORT
HEAD
COMPRESSION
COUPLING
Part No. Description Code
380HCF
299HC
299HCKF
Cap screw for A380HC/
A1404HC bracket
Bushing PTFE for A380HC/
A1404HC bracket
Bushing, graphite for A380HC/
A1404HC bracket
Thermowell
Part No. Description
265HC7 Thermowell 1000ml
265HC12 Thermowell 2000ml
Floor Stand Reactors
External Fittings (Continued)Stirrer Support Brackets (Continued)
Part No. Description Code
420HC
A472E2 Thermocouple, 1000 mL
A472E6 Thermocouple, 2000 mL
A888HC2
A2685HC Cooling Sleeve assembly LD
A740HC Cooling Sleeve assembly HD
Magnetic Stirrers
*See manual 234M for a full list of stirrers and parts.
Adapter, 1/8” NPTF to A socket
(Gas Inlet)
Safety Rupture Disc assembly
without disc (see 231M)
Gaskets & Seals
Part No. Description Code
48HC
48HCFG
315HC2 Head Gasket, PTFE FG
2741HCJV O-ring FKM OS
2741HCJK O-ring FFKM OS
Gasket, silver; thermowell and LD
drive
Gasket, gold plated; thermowell and
LD drive
External Fittings
Part No. Description Code
94CAAD Plug, 1/4” NPTM
A122VB
A146VB
208HC10 Valve adapter, two 1/8” NPTF
208HC15
234HC Compression Ring
209HC4 Bushing
260HC2
288VBAD Male Connector, 3/8 T-1/4” NPTM
396HC3 Stirrer Plug LD
35HC Compression Nut, for plug LD
Needle Valve, 1/8” NPTM (Liquid
Sample)
Needle Valve, angled 1/8” NPTM
(Gas Inlet & Gas Release)
Gage adapter, angled, two 1/4”
NPTF
Valve extension, 1/8” NPT (Gas
Release)
Split Rings and Accessories
Part No. Description Code
A232HC Split ring pair with cap screws RVFG
A2255HC3
232HCFDE
2245HC Split ring, pair RVOS
A2243HC Split ring, pair, with latches FHOS
A233HC Drop band with screw RV
Split ring pair with cap screws,
latches
Cap screw, for A232HC and
A2255HC3
FHFG
Gages
Part No. Description
56HCPA Pressure gage, 4-1/2”, 0-100 psi
56HCPB Pressure gage, 4-1/2”, 0-200 psi
56HCPC Pressure gage, 4-1/2”, 0-600 psi
56HCPD Pressure gage, 4-1/2”, 0-1000 psi
56HCPF Pressure gage, 4-1/2”, 0-2000 psi
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17
Floor Stand Reactors
Removable Head Style Parts Lists
18
Removable Head Flat Gasket
Front View
Parr Instrument Company
Floor Stand Reactors
Removable Head Flat Gasket
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19
Floor Stand Reactors
Fixed Head Style Parts Lists
20
Fixed Head Flat Gasket
Light Duty Footless Mag Drive
Front View
Parr Instrument Company
Floor Stand Reactors
Fixed Head Flat Gasket
Back View
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21
Floor Stand Reactors
22
Fixed Head Flat Gasket
Parr Instrument Company
OVERARM PARTS LIST
Floor Stand Reactors
Motor
Part No. Description
A388E6 Air Motor
A388EES Motor 1/4 HP VS 90 VDC
A388E2ES Motor 1/2 HP VS 90VDC
A388EEQ Motor 1/4 HP EXP VS 90 VDC
A388E2ET Motor 1/2 HP VS 180 VDC
A388EER Motor 1/4 HP EXP VS 180 VDC
A388EET Motor 1/4 HP VS 180 VDC
Driven Pulley Assembly
Part No. Description
A2519HC Driven Pulley Assembly
706HC2 Pulley, Driven
725HC Support Hub
730HC Ball Bearing
731HC Snap Ring Internal 2”
732HC Snap Ring External 1”
2429HC Bushing PTFE
Upper Drive Shafts
Part No. Description Code
A742HC14
A742HC7 Upper Drive Shaft 7.3” (cart only) HD
A2564HC
A2564HC2
Upper Drive Shaft 9.82” (cart only)
Upper Drive Shaft, 1/4 hp,
A1120HC
Upper Drive Shaft, 1/4 - 1/2 hp,
A1180HC
LD
LD
HD
Shaft Couplings
Part No. Description
A722HC Shaft Coupling Rubber (cart only)
2352HC Shaft Coupling .50, Universal
Release knobs
Part No. Description
726HC Release Knob, .50 Shaft
Drive Pulleys (Motor)
Part No. Description
695HC5 Pulley 600 RPM
695HC3 Pulley 1000 RPM
695HC2 Pulley 1700 RPM
Pulley Belt Combinations (HD Drive)
HD Pulley Cart-Belt FH-Belt
695HC5 728HC 728HC5
695HC3 728HC 728HC5
695HC2 728HC3 728HC6
Optional Tach Parts
Part No. Description
1564HC Optical Wheel
A1001E Tach Sensor Assembly (9.0”L)
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23
Floor Stand Reactors
HEAVY DUTY OVERARM ASSEMBLY
24
Parr Instrument Company
COOLING COIL PARTS LIST
Part No. Description
2998HC10 Cooling Coil, Serpentine 1L
2998HC20 Cooling Coil, Serpentine 2L
A92HWAD Male Connector , T316SS*
217VBAD Nut for tube 1/4”, T316SS*
218VBAD Ferrule for tube 1/4”, T316SS*
885HC2 Plug, 1/4” T Cap & Nut
Floor Stand Reactors
* Used in both top and bottom on the head. Change
to appropriate material suffi x for special alloy vessels for internal connection.
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25
Floor Stand Reactors
HEATERS PARTS LIST
Heaters on Moveable Floor Cart
Part No. Description
A735HCEB Heater Assembly 1500W 115V 1&2L
A735HCEE Heater Assembly 1500W 230V 1&2L
A735HC3EB
A735HC3EE
Heater Assembly 1000W 115V 1L Bottom
Drain
Heater Assembly 1000W 230V 1L Bottom
Drain
Heating Elements for A735HC Series Heaters
Part No. Description For Use With
662HCEB
662HCEE
662HC4EB
662HC4EE
Heating Element 1350W
11 5 V
Heating Element 1500W
230V
Heating Element 1000W
11 5 V
Heating Element 1000W
230V
A735HCEB
A735HCEE
A735HC3EB
A735HC3EE
Heaters on Floor Stand
Part No. Description
A2256HC12EB
A2256HC12EE
A2256HC22EB
A2256HC32EE
Heater Assembly 1000W 115V 1L w/
thermowell
Heater Assembly 1500W 230V 1L w/
thermowell
Heater Assembly 1500W 115V 2L w/
thermowell
Heater Assembly 2000W 230V 2L w/
thermowell
Heating Elements for A2256HC Series Heaters
Part No. Description For Use With
1603EEB
1603E4EE
1603E2EB
1603E2EE
1603E3EE
Heating Element 1000W
11 5 V
Heating Element 1500W
230V
Heating Element 1500W
11 5 V
Heating Element 1500W
230V
Heating Element 2000W
230V
A2256HC12EB
A2256HC12EE
A2256HC22EB
A2256HC22EE
A2256HC32EE
26
Moveable Floor Cart
Parr Instrument Company
Floor Stand
Floor Stand Reactors
Floor Stand Arrangement
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27
Revision 02/22/13
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