No.
Accessories .........................................16 Pneumatic Lift ..................................16 Internal Cooling Loop.......................17 Liners ...............................................17 Spare Parts Kit.................................17 Air Motor ..........................................17 Variable Speed Electric Motor .........18 TABLE OF CONTENTS Related Instructions .........................2 Customer Service ............................2 Preface...............................
PREFACE Scope General Specifications These instructions describe the installation, operation and maintenance of Parr Series 4580 HP/HT Pressure Reactors offered in two sizes, 1.0 and 1.5 gallon. They cover the basic steps to be followed when 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 on the previous page.
PREFACE (Continued) 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.
safe operation within the limits specified 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. 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.
FIXED HEAD OR REMOVABLE HEAD DESIGN Parr Series 4580 High Pressure/High Temperature Reactors are furnished with two structural options in addition to the size, pressure range, stirrer motor, controller and similar options. These are: Fixed Head with Flat Gasket Moveable Head with Flat Gasket There is no difference in the pressure or temperature limits or basic operating instructions based upon the fixed head or movable vessel options.
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.
loosened, rotate the housing the required amount, connect the upper shaft to the magnetic stirrer and then tighten the motor housing bolt. ASSEMBLE THE REACTOR These reactors require at least 10 sq. ft. of workspace in a well-ventilated area with convenient access to an electric outlet, running water, air and a drain. This unit needs to be placed at least 10 inches away from walls or flammable materials. 1. 2B. Fixed Head Reactor. Bolt the stand to the floor using the holes in the base plate.
internal solid state relay located in the 4848 controller. ASSEMBLE THE REACTOR (Continued) Motor: Secure the clamp on motor cord to the controller with the provided screw next to the motor socket for safety purposes. The flow control valves have been preset for optimum performance. Both the speed and lifting capacity of the pneumatic lift package can be adjusted with the flow control valves located on the input and output ports of the pneumatic cylinder. 3.
ASSEMBLE THE REACTOR (Continued) 8. Connect cooling water to the magnetic drive. See Instruction Manual No. 234M. 9. Connect tubing to the rupture disc outlet and run to a safely vented area. See Instruction Manual 231M. HEATERS The 1 gallon and 1.5 gallon reactors are equipped with 230 volt, 2800 watt heaters. These heaters are designed to provide uniform heat distribution to the vessels.
IDENTIFY THE VALVES Magnetic Drive Pressure Gage Gas Inlet Valves Gas Inlet Valve The gas inlet valve is easily identified when the bomb is open by noting that it is connected to a dip tube which extends to a point near the bottom of the cylinder. This valve includes an adapter which provides a socket for attaching the A506HC pressure hose furnished with the reactor.
OTHER VESSEL HEAD FITTINGS Safety Rupture Disc There is a safety rupture disc attached to the head which is intended to rupture and release the pressure before it reaches a dangerous level. A metal tag wired to the safety head identifies 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.
HOW TO USE THE VESSEL Sealing Vessels with Flexible Graphite Gaskets A torque wrench should be used to tighten the compression bolts on vessels equipped with a flexible graphite gasket. Since both 6-point and 12 point bolts are used on various Parr high pressure vessels, the user must be sure that the torque wrench is fitted with an adapter which matches the bolts on which it will be used. Additional information about flexible graphite gaskets for use to 500 °C can be found in Manual 285M.
compression nut firmly. Do not use any thread dope on the coned fitting. 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 flow through the reactor during a run.
HOW TO USE THE VESSEL (Continued) Releasing Pressure Initial Operating Test Use the gas release valve to reduce the pressure in the vessel if the reactor is accidentally overcharged when filling. 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 flammable or toxic, discharge to an exhaust hood or to any other safe release point.
ACCESSORIES Pneumatic Lift For those models equipped with a pneumatic lift package, the following instructions apply: This pressure reactor assembly uses an A2760HC Pneumatic lift package to raise and lower the Cylinder. If needed, It can also be used to raise and lower the Heater Cylinder Lift up on joystick to go “up” or push down on joystick to go “down”. Heater Assembly A (1/4”) quick disconnect fitting has been provided for the air line connection.
ACCESSORIES (continued) Internal Cooling Loop A serpentine cooling coil is mounted to the underside of the head and sealed with a ferrule and compression nut arrangement. A slow continuous flow of cold water through the coil is an effective means for controlling temperature overshoot, particularly when operating at temperatures below 150 C. Alternately the cooling coil is used to effectively cool the system at the completion of a reaction.
ACCESSORIES (continued) Variable Speed Electric Motor Reactors are normally equipped with a DC variable speed motor supplied and controlled through the Parr controller. Instructions for connecting and operating these motors are included in the controller instructions (e.g. No. 548M). This motor is usually installed in a drive system designed to produce stirring speeds from 0 to 600 rpm. Higher speeds up to 1700 rpm can be obtained by substituting larger diameter motor drive pulleys.
EXPLOSION PROOF OPERATION installed in an explosion proof housing, the user must provide the necessary housing and installation. 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: 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 flammable vapors.
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. For ASME Ustamped vessels the minimum hydrostatic test pressure is 1.3 times the rated working pressure corrected for temperature. For CE marked pressure vessels the minimum hydrostatic test pressure is the higher of 1.43 times the rated working pressure at room temperature or 1.
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 fittings and valves. Never use pliers or pipe wrenches. 3. Head and cylinder service fixtures are available for convenience and protection of components during maintenance of your reactor. 4.
PARTS LISTS * For parts made from alternate materials use the codes shown below as a suffix to the standard part number. Reaction Vessel Parts List Consult the itemized list for your reactor, provided along with this manual. For purpose of reactor identification, the following abbreviation codes are used: CM CT CX CH - RV – Removable Vessel FH – Fixed Head FG - Flat Gasket Seal SS - T316 only SP - Special Alloy Part No. Description Part No. Code Cylinders* Cylinder, 1.0 G Cylinder, 1.
PARTS LISTS (Continued) Part No. Description Part No. Code Description Cooling Coils* External Fittings (Continued) 1424HC A1417HC Safety Rupture Disc assembly without disc (see 231M) A740HC Cooling Sleeve assembly 491HC Hex Nipple, 1/4 NPTM A1180HC Magnetic drive assembly RV A1180HC4Magnetic Drive assembly FH 663HC Olive, drive seal 664HC Nut, Gland, drive seal Cooling Coil, Serpentine 1.0 G 1424HC2 Cooling Coil, Serpentine 1.
PARTS LISTS (Continued) 4580 Head Assembly Front View **1.
PARTS LISTS (Continued) 4580 Head Assembly Rotated View **1.
PARTS LISTS (Continued) Overarm Parts List Part No. Description Part No. Motor Description Code Upper Drive Shafts A388E6 A388EES A388E2ES A388EEQ A388E2EQ A388E2ER A388E2ET A388EER A388EET Air Motor Motor 1/4 HP VS 90 VDC Motor 1/2 HP VS 90VDC Motor 1/4 HP EXP VS 90 VDC Motor 1/2 HP EXP 90VDC Motor 1/2 HP EXP VS 180 VDC Motor 1/2 HP VS 180 VDC Motor 1/4 HP EXP VS 180 VDC Motor 1/4 HP VS 180 VDC A742HC A742HC5 RV FH Shaft Couplings A722HC 2352HC Shaft Coupling .50, Rubber Shaft Coupling .
PARR INSTRUMENT COMPANY 211 Fifty-Third Street Moline, Illinois 61265 USA 309/762-7716 800/872-7720 Fax 309/762-9453 http://www.parrinst.com E-Mail: parr@parrinst.
