Using main filters
Main filters are used not only for air purification. The units effectively remove foreign inclusions from liquid or gas. Modules that purify gas from impurities are characterized by a high resource, and reliability, and are resistant to wear.
Liquid main filters are often used in the pharmaceutical, food, and agricultural industries. The devices not only purify air, gas, or liquid passing through the compressor unit but also protect all internal elements and units from damage and abrasive wear. For any kind of consultation and replacement, You can contact a cheap RO Repair Service.
Selecting filters for compressed air cleaning
When choosing main filters for cleaning compressed air, it is necessary to proceed from the following factors:
- The degree of contamination of compressed air. If the compressed air contains solid particles and oil emulsions, filters with fiber cartridges are best suited, but if it is necessary to eliminate various vapors and odors from compressed air, you should focus on filters that contain activated carbon.
- Filter capacity. It is necessary to start from the maximum performance of the compressor itself, and lay a “small margin of safety”.
- Requirements for the degree of air purification. Depending on the scope of application of compressed air, there may be different requirements for the degree of its purification. Therefore, it is necessary to proceed from the requirements for the air purity class.
Types of main filters
The DF series pre-filter (rough filter) traps solid particles up to 10 microns, which classifies such compressed air as class 7 according to ISO8573-1. This filter is also called a pre-filter. It is installed after the receiver, before the refrigeration dryer, and is designed to protect the equipment from fairly large solid particles and oil droplets contained in compressed air. It uses a ceramic filter element, which has good resistance to moisture.
The QF series main filter, in principle, solves the same problem as the coarse filter, but it is capable of trapping solid particles up to 5 microns, which classifies it as class 3 air purification. It is installed after the pre-filter. It has excellent filtering capacity at elevated temperatures – up to 90 C)
The PF series fine filter traps particles over 1 micron, including oil droplets. This filter uses impact, trapping, and coalescence mechanisms to cause submicron-sized liquid particles passing through the filter cartridge from the inside to collide and form larger particles, which are then trapped and accumulated at the bottom of the filter housing. The maximum residual oil content at the filter outlet is 0.1 mg/m3. Typically installed at the outlet of a refrigeration dryer and used to prevent pipeline corrosion and as a pre-filter before a microfilter. According to ISO8573-1, the filter provides class 2 purity for solid particles and class 2 for oil content. The
The filter that removes vapors and odors of the CF series contains activated carbon, which adsorbs odors and oil vapors, such a filter allows for 100% air purification. The maximum residual oil content at the filter outlet is 0.003 mg / m3, which provides 1 class of air purity, which can be used in the food, chemical industry, dentistry, and pharmaceuticals.
Frequency of replacement of main filter cartridges
The condition for its efficient operation is timely replacement by contacting any RO service near me. It should be done every year – at least after 4000 hours of operation of the compressor. Filters removing vapors and odors are changed once every 4 months or 1000 hours of operation. Pressure indicators will indicate the approaching replacement time of a contaminated cartridge. Standard equipment in most cases includes indicators of contamination of filter elements and automatic condensate drains. A modern electronic-level condensate drain is offered as a separate option.
If you save on compressed air cartridges, this can lead to an increase in financial costs. Reducing the throughput of the main filter reduces the efficiency of air purification and accelerates equipment wear.