399M 4590 Micro Bench Top Reactors Operating Instruction Manual
4590 Micro Reactors PREFACE 4 HOW TO USE THE VESSEL 14 Scope 4 To open the Vessel 14 Related Instructions 4 Before Closing the Vessel 14 Intended Usage 4 Sealing Vessels with PTFE Gaskets 14 Safety Information 4 Sealing with Flexible Graphite Gaskets 14 General Specifications 4 O-Ring Closures 14 4 Gas Connections 15 Explanation of Symbols 5 Pressurizing the Vessel 15 Environmental Conditions 5 Do Not Overfill the Vessel 15 Unpack Carefully 5
590 Micro Reactors PREFACE Safety Information Scope These instructions describe the installation, operation and maintenance of Parr Series 4590 Bench Top Micro Reactors which are offered in three sizes 25, 50 and 100 mL. 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 below.
4590 Micro 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.
4590 Micro 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.
4590 Micro Reactors Parr Series 4590 Micro Reactors are furnished with two structural options in addition to the size, pressure range, stirrer motor, controller and similar options. These are: Fixed Head or Removable Head Vessel Design Flat Gasket or Self Sealing O-Ring Closure In the fixed head design, the head of the vessel may remain fixed in the reactor support stand.
4590 Micro 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.
4590 Micro Reactors 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. 1. Set the stand in the workspace. 3. Connect the heater cord from the heater into the heater socket on the rear panel of the Series 4848 Reactor Controller. 4. Plug the motor cord into the motor socket on the rear of the controller.
4590 Micro Reactors IDENTIFY THE VALVES Gas Inlet Valve Liquid Sampling Valve The gas inlet valve is easily identified when the vessel is open by noting that it is connected to a dip tube which extends to a point near the bottom of the cylinder. With this arrangement, incoming gas is always introduced below the surface of the liquid. This valve includes a coupling with an “A” socket connection for attachment of the pressure hose.
4590 Micro 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 identifies the burst pressure at stated 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.
4590 Micro Reactors Air Motor Variable stirring speeds from 100 to 2000 rpm with no spark hazard can be obtained by replacing the standard motor with an 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, all assembled on a mounting bracket.
Notes www.parrinst.
4590 Micro Reactors HOW TO USE THE VESSEL Removable Vessels Always remove removable vessels from the support stand before attempting to open or close them. To open the Vessel Open the gas release valve to discharge any internal pressure. For the bolted closure, loosen the six cap screws in the split ring sections. Loosen the cone pointed screw in the outer band and lower the band to rest on the table.
4590 Micro Reactors Note: The following steps are common to both head configurations. Gas Connections For a gas connection to the vessel, use the A495HC pressure hose (A506HC in high pressure reactors) furnished with the reactor. Attach the hose to a pressure regulator or flow control valve on a commercial gas cylinder using PTFE tape or other thread sealant on the 1/8” NPT male nipple and on the 1/4” NPT bushing, if used.
4590 Micro Reactors MAINTENANCE 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.
4590 Micro Reactors Periodic Pressure Tests Technical Support Each cylinder used in a Parr stirred reactor is tested under hydrostatic pressure to the higher of 1.43 times the rated working pressure at room temperature or 1.30 times the rated working pressure corrected for temperature before it is released from the factory. Micrometer caliper measurements are taken during this test to check the deflection of the walls under pressure.
4590 Micro Reactors SERIES 4590 VESSEL PARTS LISTS Standard Vessel Fittings (3000 psig / 350 °C) Standard 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: FH - Fixed Head OR O-Ring Seal RV - Removable Head SC Screw Cap FG - Flat Gasket SR Split Ring * For parts made from alternate materials use the codes shown below as a suffix to the standard part number.
4590 Micro Reactors Heads* Part No. 2432HC 2902HC 2772HC 2774HC 1432HC Shaft/Impeller Assembly Description Head Head Head Head Head Code RV FG RV OR FH FG FH OR SC OR Split Rings and Accessories Part No.
4590 Micro Reactors High Pressure Vessel Fittings (5000 psig / 350 °C) 593HC SERIES GAGE A1120HC6 MAG DRIVE A451VB VALVE 836HC GAGE ADAPTER 420HC2 ADAPTER 1401HC HEX RED NIPPLE A455VB2 VALVE 2432HC HEAD 555VBAD RED ADAPTER 195VBAD TEE A1357E_STYLE T/C 302VBAD FEMALE CONN A451VB VALVE R/D ASSEMBLY W/526HC_STYLE RD 555VBAD RED ADAPTER 154VB ELBOW A455HC S/R ASSEMBLY A138CA MALE CONN A2067HC_STYLE THERMOWELL 20 Parr Instrument Company
4590 Micro Reactors High Pressure 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: FH RV - Fixed Head Removable Head FG SR - Flat Gasket Split Ring * For parts made from alternate materials use the codes shown below as a suffix to the standard part number.
4590 Micro Reactors High Pressure / High Temperature Vessel Fittings (5000 psig / 500 °C) 420HC2 ADAPTER, A SKT X 1/4 NPTF 491HCAD NIPPLE, HEX 1/4 NPTM 593HC SERIES GAGE, PRESSURE 154VB2 ELBOW 1/4NPTM-F A176VB VALVE, STRAIGHT 1/4 NPTF-F 491HCAD NIPPLE, HEX 1/4 NPTM 491HCAD NIPPLE, HEX 1/4 NPTM A176VB VALVE, STRAIGHT 1/4 NPTF-F A176VB VALVE, STRAIGHT 1/4 NPTF-F 94CAAD PLUG, HEAD 1/4 NPTM 1452HC12 ADAPTER, SINGLE VALVE, 1/4 NPTM THERM 1452HC13 GAGE ADAPTER, ANGLE (2) 1/4 NPTF 35HC COMPRESSION NUT SHOR
4590 Micro Reactors High Pressure / High Temperature 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: FH - Fixed Head SR - Split Ring FG - Flat Gasket * For parts made from alternate materials use the codes shown below as a suffix to the standard part number.
4590 Micro Reactors Overarm and Stand Parts List RELEASE KNOB TACH SENSOR ASSEMBLY BELT GUARD OPTICAL WHEEL DRIVE PULLEY OVERARM PLATE DRIVEN PULLEY BELT ISOLATOR HUB ASSEMBLY ENCASEMENT SNAP RING UPPER DRIVE SHAFT MOTOR COLLAR UNIVERSAL COUPLING BACK PLATE Driven Pulley Assembly Part No. Description A2179HC Driven Pulley Assembly includes: 839HC Ball Bearing 841HC Snap Ring, External .693” 842HC Snap Ring, 1.
4590 Micro Reactors Support Stands 4591/4592 Micro Reactor with 1/8 hp Variable Speed Motor 147C4 CONDENSER ROD (OPTIONAL) 2231HC BUSHING (OPTIONAL) SW51FT WASHER (OPTIONAL) SN5013HX HEX NUT (OPTIONAL) 2224HC BELT GUARD (STD) 2224HC2 BELT GUARD (OPTIONAL) A2262E TACH PKG (OPTIONAL) 845HC2 RELEASE KNOB 1.49 (DOWN POSITION) 2.
4590 Micro Reactors 4591/4592 Micro Reactor with Variable Speed 1/4 HP and Explosion Proof Motors 4X TW19NL LOCK WASHER 4X SB1932BT06 10-32 X 3/8 BHSCS A3443HC BEARING HOUSING ASSEMBLY (REF) 2221HC HOUSING, BEARING 2187HC BEARING 2226HC SNAP RING 2222HC DRIVE SHAFT 2209HC COUPLING, FLEXIBLE 4X SB3716HX16 3/8-16 X 1" HHCS 4X SW37NL 3/8 LOCK WASHER 56C MOUNT MOTOR (SEE MOTOR TABLE) 4591/4592 26 HP VOLTS TYPE PART NO.
4590 Micro Reactors 4593 Micro Reactor with Fixed Head www.parrinst.
399M R06 01/22/15
