Why Do Some Compressors Cause More Unplanned Downtime?
The Root Cause Could Be Lubrication
Why Do Some Compressors Cause More Unplanned Downtime?
In daily plant operations, unplanned downtime in a gas pressure system directly translates to lost productivity and high stress for the maintenance team. While we usually blame mechanical components such as bearings, seals, or valves, the reality is that the lubricant provides the most critical data before a catastrophic failure occurs.
If your compressor is shutting down more often than usual, the root of the problem might not be the machine itself, but the fluid running through its veins.
The Threat of Varnish and Sludge Formation
A compressor is one of the most hostile environments for an industrial oil. According to reliability experts at Noria Latin America, lubricants operate under constant stress due to a severe combination of extreme heat, moisture, the presence of oxygen (or the compressed gas), metallic wear particles, and high-temperature discharge surfaces.
When an oil lacks the thermal stability required to withstand this mix of factors, it oxidizes rapidly, loses viscosity, and generates carbon deposits and varnish.
The Hidden Danger: Reactive Gas Compression and Corrosion
Not all compressors handle clean air. When a plant processes chemically active gases like oxygen, sulfur dioxide, hydrogen sulfide, or chlorine, the rules of the game change entirely.
Noria warns that when these gases interact with the lubricant in high-humidity environments, they trigger the formation of sticky deposits or transform into highly corrosive agents. This destroys internal components and leads to severe mechanical shutdowns.
Maximum Alert: Chemical Incompatibility (The Chlorine Case)
The risk of lubrication-related downtime goes beyond a simple machine stop; in specific processes, using the wrong oil can be catastrophic. A critical example is the compression or handling of chlorine.
According to guidelines from The Chlorine Institute, contact between chlorine and conventional oils or greases causes a violent, exothermic reaction (an extreme release of heat). The consequences of a mistake here are critical:
- The lubricant immediately loses its properties and generates degraded polymers.
- In the worst-case scenario, it can generate enough heat to ignite a highly dangerous chlorine-iron fire, destroying valves and piping while putting the entire plant and its workforce at risk.
What Lubricants to Use and Which to Avoid with Chlorine?
To prevent catastrophic failures and degradation-induced downtime, The Chlorine Institute's technical standards dictate a strict selection process:
STRICTLY PROHIBITED:
Organic greases, conventional mineral oils, heat transfer oils, silicone oils, and generic hydrocarbon greases. All equipment must be 100% free of these elements before operation.
COMPATIBLE LUBRICANTS:
Specialized, hydrocarbon-free synthetic fluids, such as those based on PFPE/PTFE. These maintain their integrity and do not react with chlorine, whether it is liquid or gaseous, dry or wet.
*Additionally, maintenance strategies must always strictly adhere to the manufacturer's recommendations and operating manuals.
Maintenance Checklist: Catch the Problem Before the Shutdown
To prevent the compressor from dictating your daily schedule, keep a close eye on these key indicators during your next inspection round:
Conclusion: Don't just change the oil, analyze your operating conditions
Remember: A well-lubricated compressor doesn't just last longer. At the end of the day, monitoring your lubricant and selecting the right chemical base for your specific process is not an expense, it is the ultimate insurance policy to keep your plant moving.
Let’s talk about your process and guarantee your operational continuity.
Frequently asked questions
While mechanical components are often blamed for failures, the lubricant is the component that provides the most data before a catastrophe. When it lacks thermal stability, it oxidizes, loses viscosity, and generates harmful varnish and sludge that cause unexpected stops.
It triggers a violent, exothermic reaction (extreme heat release). The lubricant degrades instantly, and in the worst-case scenario, it can generate enough heat to cause a dangerous chlorine-iron fire, destroying valves and piping.
You must use specialized, hydrocarbon-free synthetic fluids based on PFPE/PTFE. Conventional mineral oils, organic greases, and silicone oils are strictly prohibited.
Fuente:
Noria Latín América. (2021). Qué necesita saber acerca de la lubricación de compresores. https://noria.mx/lube-learn/lubricacion-maquinaria-lube-learn/certificacion-mltii/que-necesita-saber-acerca-de-la-lubricacion-de-compresores/
The Chlorine Institute. (2007, agosto). Pamphlet 164: Reactivity and Compatibility of Chlorine and Sodium Hydroxide with Various Materials. https://www.chlorineinstitute.org/