Sand Blasted Heat Exchangers
Roben, Mfg, Inc. manufactures sand blasted heat exchangers with precision surface preparation enabling optimal coating adhesion for shell-side and tube-side protection. Our sand blasted heat exchangers feature surfaces prepared for high-temperature coatings, corrosion-resistant linings, and fouling-resistant treatments that extend equipment life and maintain thermal efficiency.
What Are Sand Blasted Heat Exchangers?
Sand blasted heat exchangers are shell-and-tube, plate, and specialty heat transfer equipment that undergoes abrasive blast cleaning to prepare surfaces for protective coatings addressing corrosion, fouling, and high-temperature degradation. Surface preparation ensures coating adhesion on complex geometries including tube sheets, baffles, and shell internals.
Why Choose Sand Blasted Heat Exchangers from Roben Mfg?
- Shell-side corrosion protection
- Tube sheet coating adhesion
- High-temperature coating compatibility
- Fouling reduction support
- Extended service intervals
- Thermal spray coating preparation
- Complete interior surface access
Key Features
- Tube sheet surface preparation
- Shell interior blasting
- Baffle and support blasting
- High-temperature coating profiles
- Phenolic lining preparation
- Thermal spray substrate preparation
- Channel and bonnet blasting
- TEMA standards compliance
Applications
- Shell-and-tube exchangers
- Air coolers
- Condensers
- Reboilers
- Economizers
- Feedwater heaters
- Process coolers
- Waste heat recovery units
Compliance and Certifications
Roben Mfg maintains comprehensive certifications ensuring our sand blasted vessels meet the highest industry standards:
- ASME Section VIII Division 1 and Division 2 – “U” and “U2” Stamps
- National Board “R” Stamp for repairs and alterations
- SSPC/NACE surface preparation standards compliance
- API standards compliance as applicable
- PED (Pressure Equipment Directive) for European market
- CRN (Canadian Registration Number) for Canadian provinces
Quality Assurance and Surface Preparation
Every sand blasted vessel fabricated by Roben Mfg undergoes rigorous quality assurance protocols:
- SSPC-SP5/NACE No. 1 White Metal blast cleaning
- SSPC-SP10/NACE No. 2 Near-White Metal blast cleaning
- Surface profile measurement and documentation
- Cleanliness verification per specification
- Post-blast primer application when specified
- Complete documentation packages
Frequently Asked Questions
How is sand blasting performed inside heat exchanger shells?
Shell interiors are blasted through manways or with tube bundles removed. We use contained blast systems with dust collection, appropriate access equipment, and careful technique around tube sheets and baffle plates. Complete coverage is verified before coating application.
What coatings are applied to sand blasted heat exchanger tube sheets?
Tube sheet coatings include phenolic epoxies for moderate service, thermal spray aluminum for seawater, and specialty coatings for severe corrosion environments. Surface preparation to SSPC-SP10 or better is standard, with profiles matched to coating type and service temperature.
Can sand blasting address fouling in heat exchangers?
Sand blasting removes existing fouling deposits and prepares surfaces for anti-fouling coatings. Low-surface-energy coatings, PTFE-based systems, and ultra-smooth finishes can reduce fouling accumulation rates. Surface preparation is tailored to the specific anti-fouling coating selected.
Contact Roben Mfg
Contact Roben Mfg today to discuss your sand blasted heat exchangers requirements. Our engineering team provides expert consultation on surface preparation specifications and protective coating systems.
Phone: (281) 441-4088
Email: info@robenmfg.com
Website: www.robenmfg.com
