PARR 4550 Serisi Reaktörler (1 ve 2 Galon)

PARR 4550 Serisi Reaktörler (1 ve 2 Galon)


These 4550 Reactors extend the size range of the 4530 Series to 1 and 2 gallon (3.75 and 7.5 liter) sizes, providing excellent facilities for pilot plant studies. They can be furnished with either a self-sealing O-ring closure for working temperatures up to 225 °C, or with a flat, PTFE gasket for higher temperatures to 350 °C. Both fixed head and moveable head designs are available. The moveable head, Model 4551 and 4552, reactors are designed so that they can be opened or closed conveniently without removing the cylinder from the heater and without auxiliary handling equipment. The split-ring cover clamp sections can be moved into place from the sides, and the cap screws can be tightened with the vessel in place in its heater. The fixed head versions, Model 4553 and 4554, allow the head (and the connections made to it) to remain in place while the cylinder and heater are lowered with the aid of the included pneumatic lift system.

The 1 gallon size is usually recommended for high viscosity polymer studies. An optional bottom drain valve may be added for convenient product recovery. As with the smaller floor stand models, these larger, self-contained systems can be equipped with a variety of attachments, such as: condensers, solids charging port, bottom drain, special motors, special heaters, jacketed vessels and automatic valves and regulators. Because of the higher wattage heaters for these reactors, all models in the 4550 Series require a 230 volt power supply.

PARR 4550

Series 4550 Reactor Specifications

Shading indicates specifications that change within models
Model Number 4551 4552 4553 4554
Sizes, Gallon (Liter) 1 (3.75) 2 (7.50) 1 (3.75) 2 (7.50)
Maximum Pressure 1900 psi (130 bar)
Maximum Temp°C
with FKM 0-ring 225 °C
with FFKM 0-ring 275 °C
with PTFE Flat Gasket 350 °C
Vessel Style Removable Fixed Head
Reactor Mounting Cart Floor Stand
Closure (Cap Screws) Split-Ring (6)
Valve Connections 1/4"NPT Male
Magnetic Stirrer, Model No. A1180HC*
Maximum Torque 60 Inch-Pounds
Impeller(s), 6-Blade 2
Pressure Gage Size 4.5 inches
Range 0-2000 psi (140 bar)*
Temperature Measurement Thermowell
Cooling Coil Optional
Style Serpentine or Spiral
Bottom Drain Valve A465VB
Heater Style Calrod
Heater Power Watts 2250 3750 2250 3750
Stirrer Motor 1/2 hp variable speed*
Electrical Supply
Volts 230
Maximum Load 16 amps 18 amps 16 amps 18 amps
Vessel Dimensions
Inside Diameter 6.0 inches
Inside Depth,inches 8.6 17.2 8.6 17.2
Weight of Vessel, pounds 95 120 115 140
Reactor Dimensions
Width, inches 35 20
Depth, inches 18 30
Height, inches 50 75
Weight, pounds 265 295 315 345
Spare Parts Kit 4559M
*Other options available. See Options Section and Ordering Guide

Series 4550 Reactor Ordering Guide

A composite identification number to be used when ordering a reactor can be developed by combining individual symbols from the separate sections.

A 2 gallon, T316SS, removable head reactor with an O-ring seal, heavy duty magnetic drive stirrer, 230V Variable Speed 1/2 hp motor, 2000 psi gage, serpentine internal cooling coil, bottom drain valve, and programmable controller with pressure display module and a high temperature cutoff module would be listed as:

No. 4552-O-SS-HD-230-VS.50-2000-4843-PDM-HTM

Model Gasket Material Stirrer Voltage Motor Gage Controller Options  
4552 O SS HD 230 VS.50 2000 4843 PDM HTM
      No.     Size        Vessel Style
      4551-  1 gallon Moveable
      4552-  2 gallon Moveable
      4553-  1 gallon Fixed Head
      4554-  2 gallon Fixed Head
  • A. Base Model
      -T PTFE Compression Gasket /350 °C
      -O O-Ring FKM-225 °C
      -O O-Ring FFKM-275 °C
  • B. Gasket /Maximum temp.
      -SS T316 Stainless Steel
      -MO Alloy 400
      -IN Alloy 600
      -HB Alloy B-2
      -HC Alloy C-276
      -CS Alloy 20Cb3
      -TI2 Titanium Grade 2
      -TI4 Titanium Grade 4
      -NI Nickel 200
      -ZI Zirconium 702 or 705
  • C. Materials of Construction
      -230    230 Volt, 50/60Hz
  • D. Electrical Supply
      -VS .25 Variable Speed, 1/4 hp
      -VS .50 Variable Speed, 1/2 hp
      -XP .25 Explosion Proof Variable Speed, 1/4 hp
      -XP .50 Explosion Proof Variable Speed, 1/2 hp
      -AM .50 Air Motor 1/2 hp
  • F. Motor Option
      -2000   2000 psi/140 bar
      -3000   3000 psi/200 bar
      -1000   1000 psi/70 bar
      -600     600 psi/40 bar
      -200     200 psi/14 bar
      -100     100 psi/7 bar
  • G. Pressure Gage
      -4843 Programmable Control
      -4870 Process Controller
  • H. Temperature Controller
      (List All Desired)
      -TDM* Tachometer Display Module
      -PDM* Pressure Display Module
      -HTM* High Temperature Cut-off Module
      -AMM* Ammeter Display Module
      -*(A) Add to above for Analog Output (0-5 or 0-10 VDC or 4-20mA)
      -SVM Solenoid Valve Module
      -CM Communications Module.
  • I. Control Options
      (List All Desired)
      -RC Reflux Condenser
      -RTC Reflux Take-Off Condenser
      -GE Gas Entrainment Stirrer
  • J. Custom Options
      -No Symbol No Certification
      -ASME ASME Certification
      -CE European Community Certification/Low Voltage
      -CE/PED European Community Certification/Pressure
      -P Parr Certification
  • K. Certifications


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