Maintenance of Heat Exchangers

At Assinov, we specialize in the complete maintenance of industrial heat exchangers used in oil & gas, chemical, and power facilities. Our teams provide both preventive and corrective services to restore optimal thermal performance and extend equipment life.

Whether facing reduced efficiency, fouling, corrosion, or leakage issues, we offer fast, reliable interventions tailored to your exchanger type — shell & tube, plate, finned, or air-cooled. Our work ensures minimal downtime, improved energy efficiency, and full compliance with industry standards.

Scope: On-site or workshop maintenance of heat exchangers including extraction, cleaning, re-tubing, inspection, and reassembly.
Deliverables: Cleaned and restored exchangers, inspection reports, leak tests, and performance certificates.

Service Offerings

• Tube bundle extraction using hydraulic systems
• Chemical or mechanical cleaning (inner and outer tubes)
• Plugging, re-tubing, or full replacement of tube bundles
• Leak testing with air, water, or dye penetrant methods
• Welding and flange surface re-machining
• Non-destructive testing (NDT) and wall thickness measurement
• On-site interventions or transport to Assinov workshop
• Final inspection and detailed maintenance report

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