HVAC equipment is essential in most industrial environments. Corrosion is a major problem when it comes to maintaining the integrity of an HVAC unit. If corrosion is not addressed, the overall efficiency and durability of the equipment can be affected. This leads to increased operating expenses and costly replacements in the event of equipment failure.
Repair, and more importantly, prevention of corrosion problems is essential to avoid premature disassembly and replacement of equipment. In particular, cooling towers and air handling units are often vulnerable and often neglected components of the system. They are generally found on ceilings, which makes access and consequently difficult to maintain.
Los recubrimientos poliméricos resistentes a la corrosión y los compuestos de reparación para metales de aplicación en frío ofrecen una buena alternativa al costoso reemplazo de piezas de las unidades de climatización. Estos materiales, diseñados para resistir las condiciones difíciles que se presentan en los sistemas de climatización, evitan la realización de tareas en caliente. También minimizan las interrupciones. Esto mejora la seguridad y mantiene los activos a largo plazo. Los compuestos en pasta de Belzona reconstruyen el sustrato dañado y evitan las fugas, y los recubrimientos ofrecen protección contra la corrosión y las sustancias químicas. Este método detiene por completo la corrosión y asegura la protección del equipo a largo plazo. Además, la tecnología de polímeros de Belzona presenta una alternativa beneficiosa a los métodos tradicionales. Aumenta la durabilidad de los activos y la eficacia requerida.
Repair and protection of water condenser systems.
The combination of air, water, chemicals, and heat in cooling towers creates a highly corrosive environment. Therefore, it is common to find perforations and large metal losses in units in service. This causes leaks at the panel joints which affect the efficiency of the unit.
Additionally, cooling tower fan blades generally erode at the front edge, and crack and flake at the rear. Thus, the overall efficiency of the cooling system is reduced. Poor maintenance, for example poor lubrication of loose bearings, pulleys or fan hubs, leads to splines and wear on the shafts.
Belzona’s range of polymeric cooling tower solutions can address many common maintenance problems. All of these applications can be carried out quickly, on-site and, more importantly, with minimal disruption to normal site operations.
Os detallamos las soluciones de Belzona que se pueden usar para reparar unidades dañadas o se pueden aplicar a equipos nuevos para prolongar notoriamente su vida útil en servicio. En este caso, para torres de enfriamiento;
- Reconstruction due to metal loss and corrosion pitting.
- Cold plate welding on the cooling tower structure.
- Coating of internal surfaces for long-lasting protection against corrosion and chemicals.
- Sealing of internal and external joints.
- Live leak sealing.
- In-place repair of the fan shaft with molding techniques.
- Repair and protection against erosion-corrosion of the fan blades.

Solutions for water cooling systems in air conditioning equipment
Air conditioners are a vital part of any heating or air conditioning system. Failure to protect these units quickly results in galvanic corrosion, leading to significant metal loss in the plate surrounding the refrigerant tubes. This is a very common problem. If left untreated, the loss of metal will allow refrigerant leaks and contamination of the chilled water.
Los materiales de reconstrucción de la serie 1100 de Belzona pueden usarse para reparar y reconstruir rápidamente daños en placas de tubos, cajas de agua y tapas de extremo in-situ. Sin necesidad de trabajo en caliente antes de la aplicación del recubrimiento protector.
To prevent galvanic corrosion, air conditioners can be protected with a Belzona 1300 series coating, which will isolate dissimilar metals and eliminate corrosion.
Entry of air and water into the ducts of the air conditioning equipment
Ducts commonly used in HVAC installations, constructed from thin sheet metal, can leak at the joints, reducing efficiency. Ducts can develop rust due to the water content in the air. Condensation, in addition to water seepage from the outside, weakens and corrodes the metal in the pipes and this can lead to structural and operational failure. Rust buildup can also cause secondary problems such as mold growth and harmful particulates entering the ventilation system.
Belzona Duct Solutions are:
- Corroded duct repair with cold applied materials.
- Seam and seam sealing with flexible liquid-applied polymer membrane.
- Duct insulation encapsulation, offering seamless protection of elbows, T-pieces and complex shapes.
- Internal and external protection of ducts with corrosion resistant coatings.
Don’t miss the following video;
Para cualquier reparación y protección de tus equipos de climatización, no dudes en contactar con nosotros a través de rodator@rodator.com