Used Parr 4600 Series Pressure Vessel (970 mL)

High-Pressure Non-Stirred Chemical Reactor | 3000 PSI at 300 °C

Expand your laboratory's high-pressure capabilities while protecting your equipment budget with this pre-owned Parr 4600 Series Pressure Vessel (970 mL). Manufactured by Parr Instrument Company, this high-performance non-stirred chemical reactor provides a robust and reliable solution for laboratory and pilot-scale experiments involving elevated temperatures and pressures.

Constructed from premium T316 stainless steel, this fully inspected, used vessel offers excellent corrosion resistance and mechanical strength for demanding chemical synthesis, hydrothermal reactions, and materials research. By sourcing this reactor through HiTechTrader, research facilities can secure top-tier containment equipment at a fraction of the cost of buying new.

Condition & Unit Details

• Condition: Fully inspected, used pressure vessel in excellent structural condition.

• Safety Note: No Rupture Disk is included. The buyer is responsible for installing the appropriate rupture disk or pressure relief device prior to operation to ensure personnel and equipment safety.

• Testing: Cleaned, visually inspected for thread and sealing surface integrity by our technicians.

• The HiTechTrader Guarantee: Backed by our standard 30-day limited warranty. We have been a trusted provider of high-quality used laboratory and scientific equipment since 1982.

Heavy-Duty Pressure Containment up to 3000 PSI

High-pressure chemical reactions require vessels that can maintain structural integrity under extreme operating conditions. The Parr 4600 pressure vessel is engineered to safely contain high-pressure reactions while maintaining precise control of experimental conditions, rated for:

• Maximum Pressure: 3000 PSI

• Maximum Temperature: 300 °C

This rating enables the reactor to support a wide range of high-pressure experiments including catalytic reactions, hydrothermal chemistry, and advanced materials synthesis.

T316 Stainless Steel Construction for Chemical Resistance

The reactor vessel is fabricated from Type 316 stainless steel, a material commonly used in high-pressure chemical processing equipment due to its corrosion resistance and durability. Advantages of T316 stainless steel include:

• Resistance to many acids and solvents

• Improved corrosion resistance compared with standard stainless steels

• Excellent strength at elevated temperatures

• Long service life in laboratory and pilot-plant environments

Flexible Instrumentation & Secure Sealing

With a four-port head configuration, researchers can easily integrate essential instrumentation such as pressure gauges, thermocouples, gas inlet connections, and sampling lines.

To ensure safety, the vessel features a secure split-ring closure system with 12 compression bolts. This design provides even compression across the vessel seal, reliable containment of high-pressure reactions, and allows technicians to safely open and reseal the reactor between experiments. Additionally, the 1/4-inch NPT bottom drain allows users to easily remove liquid reaction products or rinse the vessel, significantly improving workflow between experimental cycles.

Typical Applications for Non-Stirred Reactors

The Parr 4600 Series is widely used in Chemical Engineering and Materials Science where high-pressure chemical reactions must be conducted safely and reproducibly. Non-stirred pressure reactors are ideal for experiments where mixing occurs through thermal convection, gas evolution, or external agitation methods rather than mechanical stirring systems. Typical research uses include:

• Hydrothermal chemical synthesis

• Catalyst testing and reaction studies

• Polymerization experiments

• Materials and nanomaterials research

• Chemical process development

Technical Specifications

• Manufacturer: Parr Instrument Company

• Reactor Series: Parr 4600 Series

• Reactor Type: Non-Stirred Pressure Vessel

• Volume: 970 mL (High-Pressure Variant)

• Material of Construction: T316 Stainless Steel

• Maximum Pressure: 3000 PSI

• Maximum Temperature: 300 °C

• Head Configuration: 4-Port Head

• Bottom Drain: 1/4" NPT

• Rupture Disk: None Included

• Closure Type: Split-Ring Closure

• Compression Bolts: 12

Nationwide Shipping 

Waiting on long OEM lead times for high-pressure reactors can stall critical research. Operating out of our primary facility in Coatesville, Pennsylvania, HiTechTrader provides rapid, secure freight shipping to research institutions, pharmaceutical labs, and industrial pilot plants nationwide.

Whether your facility is located locally on the East Coast, in major biotech hubs like California, or anywhere across the globe, we ensure your used pressure vessels arrive safely and ready for immediate deployment.

Frequently Asked Questions (FAQ)

What is a non-stirred pressure vessel used for? Non-stirred pressure vessels are used for chemical reactions where mechanical agitation is not required. Mixing typically occurs via thermal convection, or the vessel is used for static applications like hydrothermal synthesis, accelerated corrosion testing, and materials curing under high pressure and temperature.

Why does the Parr 970 mL vessel have a 3000 PSI rating? In the Parr 4600 Series, the 970 mL vessel is the "High Pressure" variant of the standard 1-liter reactor. It features thicker stainless steel walls, slightly reducing the internal volume to 970 mL, but safely increasing the maximum working pressure from the standard 1900 PSI up to 3000 PSI.

What is a split-ring closure on a Parr reactor? A split-ring closure is a heavy-duty sealing mechanism that consists of a metal ring split into two halves. It locks the reactor head to the cylinder using 12 compression bolts, allowing the user to apply immense, uniform sealing force without needing to rotate the heavy vessel head itself.

Buy the Used Parr 4600 Series 970 mL Pressure Vessel

HiTechTrader offers the pre-owned Parr 4600 Series 970 mL non-stirred pressure vessel, providing laboratories with a durable and reliable solution for high-pressure chemical reactions at exceptional value.

Contact HiTechTrader today to:

• Request pricing

• Confirm exact port thread sizes and configurations

• Discuss expedited shipping options to minimize your lab's downtime