Official Parr Exclusive PartnerOrigin: USA
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Series 4790 25-100ml General Purpose HP/HT pressure vessel

PRODUCT CODE:OT-RHH-5251

Home Reactors HP / HT Reactors Non-Stirred Pressure Vessels Series 4790 25-100ml General Purpose HP/HT pressure vessel Series 4790 25-100ml General Purpose HP/HT pressure vessel Overview These small…

Engineered for rigorous testing environments across coal, fuels, minerals, and advanced materials. Delivers automated determination, high operational reproducibility, and seamless compliance with international ASTM and ISO laboratory standards.

SectionNon-Stirred Pressure Vessels
Precision Rating0.1% RSD Class
ComplianceASTM / ISO / CE
OriginUSA
MethodologyMicro Pressure Vessel
Throughput / Cycles4 – 6 Tests / Hour
Orbit Technologies — Parr Instrument Company #1 Global Dealer

Instrument Overview & Operating Principle

Home Reactors HP / HT Reactors Non-Stirred Pressure Vessels Series 4790 25-100ml General Purpose HP/HT pressure vessel Series 4790 25-100ml General Purpose HP/HT pressure vessel Overview These small pressure vessels are a good choice for chemists working with very expensive materials or materials only available in small amounts. They will also appeal to users who wish

Scientific Architecture & Measurement Physics

1. Precise Thermal Equilibration

The jacket enclosure is thermally regulated to eliminate ambient room temperature variations. High-resolution thermistors capture micro-degree changes across the sample combustion cycle with instantaneous data acquisition.

2. Certified Combustion Vessel Integrity

Constructed from proprietary high-strength corrosion-resistant alloys capable of withstanding working pressures up to 300 bar. Automated firing protocols ensure complete oxidation without sample splattering.

3. Microprocessor Algorithmic Correction

Real-time numerical integration compensates for fuse ignition heat, acid formation, and thermal leakage, calculating Gross Calorific Value (GCV) strictly compliant with ASTM D5865 and ISO 1928 formulas.

4. Automated Workflow & Vessel Handling

Automated oxygen filling and water bucket management reduce operator hands-on time from 15 minutes down to under 1 minute per test, minimizing human error and maximizing laboratory throughput.

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“Every Non-Stirred Pressure Vessels we supply arrives with Orbit’s own factory-trained engineers — selection, installation, training, and after-sales service, anywhere in India.”

Orbit Technologies · 35 Years · 7,000+ Customers Across India

Frequently Asked Questions

Everything testing laboratories and procurement managers need to know about sourcing, installing, and servicing analytical instruments through Orbit Technologies.

In a true isoperibol calorimeter, the jacket temperature is continuously regulated to maintain an exact, constant temperature surrounding the bucket throughout the entire test. Highly accurate thermistors measure heat transfer across the fixed temperature gradient, allowing the microprocessor to apply rigorous thermal leakage corrections for unmatched precision (0.1% RSD class).

Have a specific testing sample or standard not covered here?

Our application engineers offer pre-sale testing feasibility analysis and laboratory site visits.