Used Parr 4567 | 450 mL T316 Stainless Steel High-Pressure Reactor System

Parr Series 4560 Mini Bench Top Reactor | 3,000 PSI @ 350°C Vessel Marking | Parr 4848 Controller | Used Laboratory Equipment

Serious Pressure Capability. Practical Benchtop Footprint. Built for Demanding Chemistry.

Some chemical reactions simply cannot be studied under ordinary laboratory conditions. When research requires elevated pressure, high temperatures, and controlled reaction environments, the right pressure reactor becomes essential.

The used Parr Instruments Model 4567 450 mL High-Pressure Reactor System brings industrial-grade pressure vessel engineering to the laboratory bench. Part of Parr's respected Series 4560 Mini Reactor family, this system combines a T316 stainless steel reactor vessel and head with a Parr 4848 Controller, offering researchers a versatile foundation for high-pressure chemical synthesis, catalyst development, reaction optimization, and process research.

With a nominal 450 mL capacity and vessel markings specifying a maximum allowable working pressure (MAWP) of 3,000 PSI at 350°C, this configuration is worth considering for laboratories requiring substantial pressure capability without moving to larger pilot-scale equipment.

Whether your team is investigating hydrogenation pathways, developing specialty chemical formulations, evaluating catalytic performance, or scaling up promising laboratory reactions, the Parr 4567 provides a compact platform for advancing research under carefully controlled conditions.

Available from HiTechTrader — supplying laboratory and scientific equipment since 1982.

Why This Parr 4567 Reactor System Deserves a Closer Look

1. High-Pressure Engineering for Demanding Research

The reactor vessel is marked 3,000 PSI at 350°C, representing approximately 207 bar of pressure at the specified temperature.

That combination is particularly relevant to chemical engineering laboratories studying reactions that require conditions beyond conventional atmospheric-pressure glassware.

For researchers, the advantage is experimental flexibility. A properly configured high-pressure reactor can support investigations involving pressurized gases, elevated-temperature reaction kinetics, catalytic transformations, and processes that cannot be adequately studied in standard open or reflux systems.

Important: The stated pressure and temperature figures are historical vessel markings, not a certification of the complete system's present operating limits. Actual permissible operating conditions must be established through inspection, appropriate testing, and verification of the complete assembly, including its seals, fittings, closure, and pressure-relief devices.

2. T316 Stainless Steel Construction for Process Chemistry

Both the reactor head and vessel are identified as T316 stainless steel, an austenitic stainless steel alloy valued for its combination of mechanical strength, corrosion resistance, and suitability for numerous laboratory chemical-processing environments.

Its molybdenum-containing composition provides improved resistance to certain corrosive conditions compared with standard 304 stainless steel.

For laboratories working with compatible solvents, reagents, gases, and reaction intermediates, T316 offers a familiar and durable reactor construction material.

Advantages of T316 Stainless Steel

• Corrosion Resistance: Suitable for many laboratory solvents and chemical-processing environments when material compatibility is established.
• Mechanical Durability: A proven construction material for properly engineered pressure equipment.
• Process Versatility: Useful across many organic synthesis, catalytic research, and chemical development applications.
• Established Industry Use: Commonly found in laboratory reactors, process vessels, and chemical manufacturing equipment.

Material compatibility must always be evaluated for the specific chemicals, concentrations, operating temperatures, pressures, and exposure durations. T316 stainless steel is not universally suitable for highly corrosive or chloride-rich environments.

3. The 450 mL Advantage: Between Screening and Scale-Up

At 450 mL, the Parr 4567 occupies a useful middle ground in laboratory reactor sizing.

Smaller vessels are excellent for initial reaction screening and conserving expensive reagents, but may provide insufficient material for extensive downstream analysis or product recovery.

Larger reactors increase material consumption and can introduce unnecessary operating costs during early-stage development.

A 450 mL vessel gives researchers additional capacity to study reaction behavior, compare process conditions, and obtain meaningful quantities of reaction products while maintaining a manageable laboratory footprint.

Why Researchers Choose Intermediate-Capacity Reactors

• Additional capacity for reaction optimization and repeatability studies.
• More material available for post-reaction characterization.
• Useful intermediate scale between small screening vessels and larger pilot reactors.
• Flexibility for studying process variables and reaction yields.
• Compact equipment format suitable for many research laboratories.

The actual working fill volume is lower than the nominal 450 mL vessel capacity and must be determined based on the reaction chemistry, required gas headspace, thermal expansion, and manufacturer operating guidance.

4. Parr 4848 Controller Included

A capable reactor vessel is only one part of a successful laboratory reaction system. Temperature regulation, process monitoring, and repeatable operating conditions are equally important.

This offering includes a Parr Model 4848 Controller, an established control platform used with Parr laboratory reactor systems.

Depending on the installed controller configuration and connected instrumentation, Parr 4848 controllers can support temperature regulation and additional monitoring or control functions.

For laboratories replacing an aging reactor, expanding an existing Parr installation, or establishing a new research station, having the controller included can help simplify equipment sourcing.

The specific controller options, sensor compatibility, connections, and functional condition should be verified before purchase.

Parr 4567 Technical Specifications

Reactor Head and Vessel Identification

When purchasing pre-owned high-pressure equipment, component identification matters. Head and vessel markings can help laboratory equipment managers document existing assets, confirm compatibility, and request additional information from the manufacturer.

Reactor Head Markings

• Identification: 2201HC2
• Additional Marking: 221562
• Material: T316
• Additional Marking: 050808
• Additional Marking: 4560-0805-7406

Reactor Vessel Markings

• Identification: 452HC2
• Material: T316
• Additional Marking: 010683
• Additional Marking: 1742
• MAWP: 3,000 PSI at 350°C

Research Applications: Where the Parr 4567 Can Make a Difference

High-Pressure Hydrogenation and Catalysis Research

Hydrogenation research often requires carefully controlled reaction conditions to evaluate catalyst activity, conversion efficiency, and product selectivity.

A properly configured Parr 4567 reactor can provide a laboratory platform for investigating gas-liquid reactions, catalytic transformations, and the influence of temperature and pressure on reaction outcomes.

Potential research areas include:

• Pharmaceutical intermediate development.
• Fine and specialty chemical synthesis.
• Heterogeneous and homogeneous catalyst research.
• Gas-liquid reaction studies.
• Reaction pathway and selectivity investigations.

Use with hydrogen or other flammable gases requires appropriate gas-handling equipment, ventilation, safety systems, and documented procedures. The suitability of the actual reactor configuration must be verified.

Chemical Process Development and Reaction Optimization

Moving a chemical reaction from an initial laboratory demonstration toward a repeatable process requires more than achieving the desired conversion once.

Chemical engineers must evaluate how changes in temperature, pressure, residence time, reagent concentration, and mixing affect reaction performance.

The Parr 4567 offers a nominal 450 mL reaction capacity that may be useful for controlled process-development experiments where teams need to compare operating conditions and collect enough product for meaningful analytical testing.

For organizations developing new chemical processes, such experiments can help generate useful operating data before investing in larger pilot-scale equipment.

Materials Science and Advanced Chemical Development

High-temperature and high-pressure research environments play an important role in developing specialty materials, polymers, chemical additives, and other advanced formulations.

When appropriately equipped and verified, the Parr 4567 can be considered for pressure-assisted synthesis, chemical transformation studies, and compatible thermal processing applications.

Applications must be evaluated individually against the vessel metallurgy, seals, temperature-control hardware, instrumentation, and pressure-safety components.

Academic and Industrial Research Laboratories

University chemistry departments, chemical engineering programs, industrial R&D teams, and contract research organizations often need specialized equipment while managing limited capital budgets.

Purchasing a used Parr reactor system can provide an alternative to new equipment while preserving resources for reagents, catalysts, analytical instrumentation, and additional research infrastructure.

For laboratories already operating Parr equipment, an additional reactor can also help create dedicated experimental stations and reduce competition for shared instrumentation.

Parr 4567 vs. Other Parr Laboratory Reactors

Selecting the right pressure reactor involves more than choosing the highest pressure rating or largest vessel capacity.

Researchers should evaluate reaction volume, vessel metallurgy, temperature requirements, pressure limits, sealing systems, mixing capabilities, controller compatibility, and the available laboratory infrastructure.

The Parr 4567 is particularly worth considering when a 450 mL vessel is appropriate and the application calls for a T316 stainless steel pressure reactor.

Comparing Related Reactor Options

• Parr 4561 — 300 mL: An alternative for lower-volume synthesis, screening, and catalyst development. Browse Available Stirred Reactor Systems.
• Parr 4562 — 450 mL: Another 450 mL Series 4560 configuration to consider when comparing temperature-control arrangements and component options. View the Parr 4562 450 mL Reactor.
• Parr 4568 — 600 mL: An alternative offering additional nominal vessel capacity for research programs requiring larger batches. Explore Laboratory Reactors.

For more information about selecting equipment for demanding chemical applications, read our guide: Parr Reactors for Chemical Engineering & High-Pressure R&D.

What to Consider When Buying a Used High-Pressure Reactor

Unlike ordinary laboratory glassware, high-pressure reactor systems require careful evaluation of mechanical condition, component compatibility, and pressure safety before commissioning.

When comparing used reactor equipment, purchasing managers and research engineers should consider:

• Vessel Condition: Check for visible corrosion, mechanical damage, and evidence of previous repairs or modifications.
• Pressure Rating: Verify the operating limits of the complete assembly rather than relying solely on the vessel nameplate.
• Head and Vessel Compatibility: Confirm that the reactor components are compatible and properly matched.
• Gaskets and Seals: Determine whether installed sealing materials are appropriate for the intended chemistry and temperatures.
• Controller Compatibility: Confirm that the Parr 4848 Controller supports the required instrumentation and control functions.
• Safety Components: Review pressure-relief provisions, fittings, tubing, and other essential protective devices.
• Testing Documentation: Request relevant inspection, maintenance, and testing records when available.
• Included Accessories: Verify the presence and condition of the heater, mixing system, drive assembly, sensors, and related hardware if required.

HiTechTrader can provide available product information to assist with your purchasing evaluation. Contact our team to discuss the specific equipment configuration and condition details.

Why Purchase Used Parr Equipment from HiTechTrader?

Specialized laboratory reactor systems can represent a substantial investment, particularly for facilities operating multiple research programs or requiring dedicated equipment for different chemical processes.

Buying pre-owned equipment can be an economical way to obtain a recognized reactor platform without automatically committing to the purchase price of a new system.

HiTechTrader has served the scientific equipment industry since 1982, supplying used laboratory instruments, chemical-processing equipment, and specialized research systems to organizations seeking value and knowledgeable equipment support.

Advantages of Working with HiTechTrader

• Decades of Experience: Serving laboratory and scientific equipment buyers since 1982.
• Specialized Inventory: Access to Parr reactors, pressure vessels, controllers, and other laboratory equipment.
• Cost-Conscious Purchasing: Pre-owned equipment options for laboratories balancing technical requirements with capital budgets.
• Equipment Selection Support: Assistance comparing available configurations and product specifications.
• Convenient Sourcing: Access to complementary equipment for chemical engineering, research, and laboratory operations.

Browse our Parr Instruments inventory, explore used laboratory reactors, or review our selection of high-pressure stirred reactor systems.

Frequently Asked Questions About the Parr 4567 Reactor

What is the capacity of the Parr 4567?

The Parr 4567 is a nominal 450 mL laboratory reactor in the Series 4560 Mini Reactor family. Actual usable working volume depends on the reaction chemistry, required headspace, and operating conditions.

What is the pressure rating of this Parr 4567?

The supplied vessel marking specifies a maximum allowable working pressure of 3,000 PSI at 350°C. This is a vessel nameplate specification and does not establish the current operating rating of the complete used system.

What material is this Parr reactor made from?

The supplied equipment identification lists T316 stainless steel for both the reactor head and vessel. Material certification and chemical compatibility should be verified for the intended application.

Does the Parr 4567 include a controller?

Yes. This offering includes a Parr 4848 Controller. Its installed features, electrical compatibility, connected instrumentation, and operating condition should be confirmed before purchase.

Is the Parr 4567 suitable for hydrogenation?

The Series 4560 reactor platform is used in high-pressure chemical research, including appropriately configured catalytic applications. Hydrogenation suitability depends on the actual reactor configuration, gas-handling equipment, seals, mixing system, and safety provisions.

Can this reactor be used for chemical process development?

A properly configured and verified 450 mL pressure reactor can be useful for chemical process research, catalyst evaluation, reaction optimization, and intermediate-scale laboratory experiments.

Is this a new or used Parr reactor?

This is a used Parr 4567 reactor system. The supplied vessel identification includes a 1988 year marking. Buyers should request current condition details, equipment photographs, and available inspection or maintenance information.

Does HiTechTrader sell other Parr reactor systems?

Yes. HiTechTrader offers a selection of used Parr Instruments equipment, including laboratory reactors, pressure vessels, controllers, and related components. Specific inventory varies.

Put the Right High-Pressure Reactor to Work in Your Laboratory

Whether you are expanding a chemical engineering laboratory, upgrading aging research equipment, or preparing for a new process-development program, the used Parr 4567 450 mL T316 Stainless Steel Reactor System with 4848 Controller is worth evaluating.

Its compact 450 mL capacity, T316 stainless steel construction, included Parr 4848 Controller, and vessel marking of 3,000 PSI at 350°C make this an interesting option for laboratories seeking specialized high-pressure research equipment.