Polyurethane Insulated Pressure Vessels for Pulp and Paper
Polyurethane insulated pressure vessels for pulp and paper are industrial containers designed for the chemical and mechanical processing of wood fiber into pulp and paper products while maintaining precise temperature control through integrated polyurethane foam insulation. These vessels handle aggressive chemical environments at elevated temperatures and pressures.
Why are Polyurethane Insulated Pressure Vessels Needed for Pulp and Paper?
Pulp and paper manufacturing involves chemical processes that require precise temperature control for optimal digestion, bleaching, and chemical recovery. Polyurethane insulated vessels maintain process temperatures, reduce energy losses, and protect personnel from hot surfaces in mill environments.
Polyurethane Insulated Pressure Vessel Applications in Pulp and Paper
Roben, Mfg, Inc. manufactures polyurethane insulated pressure vessels for numerous pulp and paper applications:
- Batch and continuous digesters
- Bleach plant vessels
- Chemical storage tanks
- Black liquor processing equipment
- Pulp storage towers
- White liquor clarifiers
Vessel Types for Pulp and Paper
Roben, Mfg, Inc. manufactures various polyurethane insulated pressure vessel types for pulp and paper applications:
- Digesters
- Storage Tanks
- Process Vessels
- Reactors
- Scrubbers
- Filters
Certifications and Standards
Our polyurethane insulated pressure vessels are designed and manufactured in accordance with stringent industry standards:
- ASME Section VIII Division 1 & 2: Pressure vessel design and fabrication standards
- ASME Section IX: Welding procedures and qualifications
- NBIC: National Board Inspection Code compliance
- CRN: Canadian Registration Number for Canadian installations
- PED: Pressure Equipment Directive for European Union market
- U Stamp & R Stamp: ASME certification for new construction and repairs
Polyurethane Insulated Pressure Vessels for Pulp and Paper FAQs
What materials are used for pulp and paper vessels?
Material selection depends on the specific process environment. Carbon steel with corrosion allowance is used for black liquor service. Duplex and super duplex stainless steels are common for bleach plant equipment due to chloride resistance. Titanium may be required for the most aggressive bleaching environments.
How do you address the corrosive environment in pulp mills?
We select appropriate materials based on the specific chemical environment, whether alkaline (digesters, black liquor) or oxidizing/chloride (bleach plant). Proper alloy selection, welding procedures, and corrosion allowances ensure reliable service life in the demanding pulp mill environment.
Can large vessels be field-erected with polyurethane insulation?
Yes, large pulp and paper vessels can be field-erected with polyurethane insulation applied after assembly. Field-applied spray foam provides seamless coverage over complex geometries. Protective jacketing is installed to protect the insulation from the mill environment.
Contact Roben, Mfg, Inc.
For more information about our polyurethane insulated pressure vessel solutions or to request a quote, please contact Roben, Mfg, Inc. today. Our experienced engineering team is ready to assist you in developing the perfect solution for your unique application requirements.
Phone: (732) 364-6000 | Email: sales@robenmfg.com
760 Vassar Ave, Lakewood, NJ 08701
