How to Determine if You Need to Replace an Air Compressor?
Release time:
2025-07-04
When considering whether air compressor system needs to be replaced, you should first understand that the actual purchase price of a new air compressor is only about 10-20% of the total cost. In addition, you should also consider factors such as the age of the current air compressor, its energy efficiency compared to a new compressor, its previous maintenance history, and overall reliability. The following factors can help you make a decision.
Does your air compressor need to be replaced or repaired?
Suction gas temperature is relative to the evaporating temperature. To prevent liquid return, the suction gas temperature is typically required to have a 20°C superheat. If the insulation of the return gas line is inadequate, the superheat will far exceed 20°C. The higher the return gas temperature, the higher the cylinder intake and discharge temperatures. For every 1°C increase in return gas temperature, the discharge temperature will increase by 1–1.3°C.
Have you estimated the lifecycle cost of a new air compressor (including energy consumption and maintenance)?
The first part of the lifecycle cost of an air compressor refers to its daily energy consumption during operation. Air compressors that use energy-saving technologies consume less energy. Regular maintenance is also a significant expense, so maintenance costs should be included in the lifecycle cost. Different brands and models of air compressors have varying maintenance frequencies. Some compressors require maintenance twice or more frequently than others.
Have you developed a plan to optimize your air compressor system over its lifecycle?
Energy consumption is the largest cost component in compressed air systems. You need to understand how much air you need at the required pressure and how much energy is required to achieve that pressure. Professional tip: Check if a Variable Speed Drive (VSD) compressor is suitable for your application and processes.
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