Lethal Service Pressure Vessels for Chlorine Dioxide (ClO2) Generation | Roben Manufacturing
Lethal Service Vessels for Chlorine Dioxide (ClO2) Generation
Chlorine dioxide—a powerful oxidizing agent used for pulp bleaching and water disinfection—cannot be stored and must be generated on-site using specialized pressure vessels. ClO2 is toxic (IDLH 5 ppm), explosive when concentrated, and extremely corrosive to many materials. Generation systems combine chlorate or chlorite chemicals with acid to produce ClO2 continuously, requiring vessels that safely contain this hazardous reaction while resisting aggressive corrosion from both reactants and products.
Application Importance
Chlorine dioxide has largely replaced elemental chlorine for pulp bleaching due to environmental benefits, and is increasingly used for water disinfection due to its effectiveness against resistant pathogens. The inability to store ClO2 means every facility using it must generate it on-site—making generator vessels critical equipment. The combination of toxicity, explosivity, and corrosivity demands specialized vessel design. Roben Manufacturing’s experience with ClO2 generation equipment ensures safe, reliable systems.
Design Requirements
• Titanium construction (wet-end)
• Corrosion resistance to acids and ClO2
• Explosion prevention design
• Proper venting and relief
• 100% RT and PWHT where applicable
• Material certification and testing
• Process safety features
• Continuous operation capability
Recommended Materials
• Titanium Grade 2/7 (primary)
• Tantalum (extreme conditions)
• Hastelloy C-276 (selected applications)
• FRP with Ti wetted surfaces
Industries Served
• Pulp & Paper
• Water Treatment
• Food Processing
• Textile Bleaching
Certifications & Compliance
All Roben lethal service pressure vessels are manufactured in accordance with:
• ASME Boiler and Pressure Vessel Code Section VIII, Division 1 and 2
• ASME B31.3 Process Piping Code (Category M Fluid Service)
• EPA and OSHA regulations for highly hazardous chemicals
• DOT regulations for transportation of hazardous materials
• PED (Pressure Equipment Directive) for European compliance
Roben Manufacturing Expertise
With over 65 years of pressure vessel fabrication experience, Roben Manufacturing has developed specialized expertise in lethal service vessels for chlorine dioxide (clo2) generation. Our certified welders, qualified procedures, and rigorous quality systems ensure every vessel meets the heightened requirements for hazardous chemical containment. We work directly with customers to optimize material selection, design, and fabrication for safe, reliable, code-compliant equipment.
Frequently Asked Questions
What special requirements apply to chlorine dioxide (clo2) generation vessels?
Lethal service designation under ASME Code triggers mandatory 100% radiographic examination of all butt welds, post-weld heat treatment (with limited exceptions), impact testing when applicable, and enhanced documentation. Additional application-specific requirements may apply based on the substances handled and industry standards.
How does Roben ensure vessel integrity for lethal service?
Our quality systems exceed standard ASME requirements through enhanced material verification, certified welding procedures specific to lethal service, 100% radiographic examination with strict acceptance criteria, and comprehensive documentation. Every vessel undergoes hydrostatic testing and thorough final inspection before shipment.
What documentation does Roben provide?
We provide comprehensive documentation packages including ASME Data Reports, certified mill test reports, welding procedure specifications and PQRs, welder qualification records, NDE reports, hydrostatic test certificates, dimensional inspection records, and full material traceability documentation. Packages can be customized for specific regulatory requirements.
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Request a Quote for Chlorine Dioxide (ClO2) Generation Vessels
Contact Roben Manufacturing to discuss your chlorine dioxide (clo2) generation lethal service pressure vessel requirements.
Phone: (732) 364-6000
Email: sales@robenmfg.com
Address: 760 Vassar Avenue, Lakewood, NJ 08701
www.robenmfg.com
