Components for an air compressor are filters, oil, separators, belts, valves and sensors that ensure a compressor provides clean air at the correct pressure. These components are usually consumables that need to be replaced according to running hours, while some others such as the bearings are repairs. Changing the small parts on time is what keeps the large ones from failing.
Air compressor parts is one of the top related searches for air compressors in the UAE, and for good reason. Heat and dust make parts wear faster here than the manual assumes. This guide covers which parts wear, what goes in a service kit, how filters downstream of the compressor fit in, and how GENAVCO supports Denair compressors.
The Parts That Wear in an Oil-Injected Screw Compressor
| Part | What it does | Signs it needs changing |
| Intake air filter | Stops dust entering the air end | Restriction indicator, rising temperature |
| Oil filter | Cleans oil before it returns to the air end | Pressure drop across the filter |
| Oil separator element | Removes oil from the compressed air | Higher oil carry-over, rising energy use |
| Compressor oil | Lubricates, seals and cools the air end | Darkening, varnish, reaching its hours |
| Belts or couplings | Transmit drive from the motor | Wear, slip, noise |
| Valves and seals | Control intake, minimum pressure and leaks | Loading problems, leaks |
| Condensate drains | Remove water from the system | Water in the air lines, drains stuck open |
Oil-free compressors have no oil separator because no oil enters the compression chamber, but dry screw designs still have lubricated gears and bearings that need oil and filter changes, and water-injected designs have their own water treatment parts. See our guide to the screw compressor for how each design works.
What is Included in the Service Kit
- Regular service: intake air filter, oil filter, separator element, and compressor oil, which are replaced together according to the schedule in the manual.
- Checks: belts, hoses, drains, and the cooler, all done during each service check and replaced if worn out.
- Major service: bearings, shaft seals, and valve kits, done rarely or when diagnostics reveal wear.
Replacing the oil without replacing the filters will waste the new oil. Replace the whole kit together at one time. Record the hours of operation.
Parts Downstream of the Compressor
The compressor is just the beginning of the system. Dryers, filters, drains and receivers also have wear parts that, if ignored, will introduce water and oil into the tools and product being manufactured.
- Filter elements: each grade of filter has an element that loads up over time and needs changing. See our guide to compressed air filters.
- Dryer components: refrigeration dryers need clean condensers and working drains. Read more about air dryers.
- Receivers and drains: water collects in the receiver and must be drained. See our guide to air receiver tanks.
Denair Compressors and Treatment From GENAVCO
1. Denair Electric Screw Air Compressors
- Range confirmed: motor power from 5.5 kW to 400 kW and free air delivery from 0.36 to 74.49 m3/min, both fixed speed and variable speed models.
- Components confirmed: electronics by Schneider, pressure sensor by Danfoss and SKF bearings, plus smart control panel with multi-language LCD screen.
View Denair electric screw compressors
2. Denair Compressed Air Filters
- Confirmed range: capacity from 1.2 to 300 m3/min at 6 to 13 bar.
- Confirmed filter series: C series water separator (to 3 microns and 5 ppm oil), T series pre-filter (to 1 micron and 1 ppm), A series post-filter (to 0.01 micron and 0.01 ppm), AA series oil removal extra fine filter (to 0.01 micron and 0.001 ppm) and H series vapour filter (to 0.01 micron and 0.001 ppm).
View Denair compressed air filters
Need parts or a service for your compressor?
Send us the compressor model, serial number and running hours. Our team will confirm the parts and service you need.
Service Intervals in UAE Conditions
- Hot plant rooms: higher temperatures shorten oil and separator life. Ventilate the room and maintain the coolers clean.
- Dusty air entering: filters will load faster in sandy environments, so monitor restriction indicators frequently.
- Coastal humid air: high condensation will increase the effort of drains and dryers.
- Running time: facilities that operate two or three shifts will have shorter service intervals.
Compressor Parts and Maintenance Planning
- Step 1 - Make a list of all compressors, dryers, and filters along with their model and serial numbers.
- Step 2 - Note down the hours of running and service intervals for each of them.
- Step 3 - Maintain one service kit for each compressor model.
- Step 4 - Keep spare filter elements for every filter grade.
- Step 5 - Log every service and the condition of removed parts.
- Step 6 - Review intervals each summer and shorten them if parts come out heavily loaded.
Why Choose GENAVCO for Air Compressor Parts
- Genuine parts and on-site service: GENAVCO's after-sales network for Denair compressors provides genuine parts, preventive maintenance and on-site service.
- Genuine parts only: see GENAVCO parts support.
- The entire package: compressors, dryers, filters, and receivers all from one supplier, thus keeping the operational costs and inventory numbers manageable.
- One of the Juma Al Majid Group since 1967: a recognized UAE manufacturer with ISO 9001 certification.
Mistakes with Common Components of Air Compressors
- Replacing oil but no separator: the loaded separator increases pressure loss and energy consumption.
- Omitting intake filters during dusty periods: dust goes into the air end as well as the oil.
- Not draining: water inside the piping affects tools and products.
- Omitting or changing filter grades: absence or incorrect grades allow oil or particles to go through.
- Waiting for a breakdown: see more air compressor mistakes that shorten equipment life.
FAQs
What wears out in an air compressor?
In an oil-injected screw compressor, the intake air filter, oil filter, separator filter, oil, belts, valves, and drain wear out on a time schedule, whereas bearings and seals wear out over a much longer time frame.
How often should an air compressor be serviced?
Service your machine according to the running hours mentioned in the manual; reduce the interval if the operating environment is dusty, humid, or hot.
Do GENAVCO provide spare parts for Denair compressors?
Yes, GENAVCO provides spares and after-sales support for Denair compressors.
What is the purpose of an oil separator?
It extracts oil from the compressed air coming out of an oil injected compressor and delivers it back into the oil circuit. Clogging of the separator leads to increased consumption of energy and oil carry-over.
Do I need to use authentic parts for my air compressor?
Authentic parts follow the specifications set by the compressor manufacturer and ensure warranty coverage. Using less expensive filter or separator which clogs sooner may prove more expensive due to increased energy costs.
What will happen if I miss maintenance of my compressor?
Filters will be clogged, oil becomes degraded and the separator will clog resulting in higher temperatures, high energy consumption and premature wear of the compressor. Skipping the maintenance of your compressor is one of the leading reasons of its failure.
Planning Your Compressor Parts Is EASY!
Planned parts and service keep compressed air clean, dry and affordable. GENAVCO supports air compressors in the UAE with genuine Denair parts, treatment equipment and on-site service.
Tell us your compressors and running hours. The parts will be planned and priced right.
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