Which oil to choose for a screw compressor?
Choosing the right oil for a screw compressor is crucial to its proper operation, performance and service life. The oil in a screw compressor has many functions, including lubricating moving parts, cooling, sealing and protecting against corrosion. This is why it is so important to choose an oil with the right characteristics and properties.
Types of oil for screw compressors
There are different types of oils available on the market for screw compressors, which vary in composition, properties and purpose. The most commonly used are:
- Mineral oils: These are the cheapest oils, but have poorer lubricating properties and are less resistant to high temperatures. They are mainly used in compressors operating in mild conditions.
- Synthetic oils: They are more expensive than mineral oils, but have much better lubricating properties and are more resistant to high temperatures and oxidation. They are used in compressors operating under harsh conditions, such as high temperatures or pressures.
- Semi-synthetic oils: These are blends of mineral and synthetic oils. They have better properties than mineral oils, but are cheaper than synthetic oils. They are used in compressors operating in moderate conditions.
Oil specifications for screw compressor
When selecting oil for a screw compressor, the following parameters should be taken into account:
- Viscosity: The viscosity of an oil is a measure of its resistance to flow. The higher the viscosity, the denser the oil. The viscosity of the oil should be selected according to the type of compressor and its operating conditions.
- Flash point: Flash point is the temperature at which oil starts to burn. The higher the flash point, the safer the oil is to use.
- Flow temperature: The pour point is the temperature at which the oil stops flowing. The lower the flow temperature, the more resistant the oil is to low temperatures.
- Lubricating properties: The lubricating properties of the oil determine its ability to reduce friction between moving parts.
- Resistance to oxidation: The oil's resistance to oxidation determines its durability. The more resistant the oil is to oxidation, the longer it will retain its properties.
How do I choose the right oil for my screw compressor?
To choose the right oil for a screw compressor, the following factors should be taken into account:
- Compressor type: Different types of compressor require different oils.
- Working conditions: Compressors operating in harsh environments require oils with better properties.
- Manufacturer recommendations: The compressor manufacturer usually recommends a specific type of oil.
Summary
Choosing the right oil for a screw compressor is very important for its proper operation and service life. Take into account the type of compressor, its operating conditions and the manufacturer's recommendations, or seek the assistance of the compressor service. If in doubt, it is worth consulting a specialist.
