Compressed Air Conditioning-->Air Filter --> Active Carbon Filter
Oil Vapor Filters
Oil mist, one of the possible contaminations in compressed air, is definitely not desired in sensitive surface applications where air will come into contact, especially in the food and pharmaceutical industries, and in the air of pneumatic equipment.
Even if Oil-Free Compressors, known as Oil-Free, are selected in very sensitive applications, oil mist conditioning must be performed due to the hydrocarbon concentration in the absorbed atmospheric air. For this purpose, activated carbon granules and active carbon filters are used.
Activated carbon, also known as odor filter in the market, takes on a highly porous form thanks to the pressure and high temperature it is exposed to during its production. These pores absorb the oil and water in the form of vapor in the compressed air and deliver the air to the desired quality.
Thermal oils used in Piston Oil Compressors or Screw Oil Compressors are synthetic and generally not suitable for food contact. Some companies use Food Grade Oil and believe that the oil vapor entering the process does not harm the product, and they pay very high prices for this type of oil. However, as long as the compressor is operating, impurities that will be added to the oil as a result of wear and the resulting basic stresses destroy the structure of the oil. In addition, these types of oils may pose a risk of burning and ignition at high temperatures.
Therefore, regardless of the compressor cooling type (oil/oil-free compressors) and operating type (piston/screw compressors), the oil in the pressurized air must be retained by an active carbon filter. Parker domnick hunter, the amount of oil vapor remaining after active carbon filters; It guarantees 0.003 ppm or 0.003 mg/m³.
Applications that come into contact with the end product, applications where high paint quality is required, preform inflation applications with compressed air, some special heat treatment applications and dry type applications, especially in food and pharmaceutical production, according to standards such as HACCP, BRC, and GMP. Pneumatic equipment air applications such as working cylinders, pistons, valves, positioners, actuators etc. are solved with active carbon filters.