E-book Compressed Air Filters
23 May, 2022
Filters play a crucial role in the proper treatment of compressed air. In this interactive e-book on filters you will learn everything on contaminants and which filters offer you optimal protection.
DDp (+), PDp (+) SERIES
Dust filtration for your air compressor
Dust is all around us, which is why it is one of the most common threats to compressed air systems. To protect you and your investments from dust, Atlas Copco has developed a series of top-quality air filters.
- DDp+/PDp+ series
- Benefits
- Dust Filtration
- Filter applications
- Designs
- Specifications
- Downloads
- Additional readings
- Related products
- Services Contact us
DDp+/PDp+ series
DDp+/PDp+ series
With their pleated design and ribbed housing, these innovative filtration solutions were engineered to cost-effectively provide an outstanding air purity and to meet increasingly strict quality demands.
Their high-performance, stainless-steel cores, in combination with epoxy-sealed caps and a filter housing with anti-corrosive coating make the DDp+/PDp+ series highly reliable.
In addition, smart indicators facilitate the operation of the filters and make optimal maintenance easy.
DDp+/PDp+ series Performance
Find out some useful information on the performance of the DDp+/PDp+ series below.
| DDp+ | PDp+ | |
| Contaminant | Dry dust | |
| Filtration technology | Pleated | |
| Test method | ISO 8573-4:2001, ISO 12500-3:2009 | |
| Particle removal efficiency (% at MPPS) | 99.92 | 99.98 |
| ISO class 8573-1 | [2:-:3] | [1:-:2] |
| Average dry pressure drop (mbar) | 49 | 56 |
| Element service | After 8,000 operating hours or 1 year or 350 mbar pressure drop | |
| For flanged filters: after 4,000 operating hours or 1 year or 350 mbar pressure drop | ||
| Precede with | Dryer | Dryer and DDp+ |
Benefits
Technical benefits
Wrapped technology
Maximum durability
Lowest pressure drop
8000hr service intervals
Dust Filtration
Dust filtration for your air compressor
Once dust (or other contaminants like particulates and micro-organisms) enters your compressed air stream, it can have detrimental – and costly – consequences for your downstream equipment and end products.
To protect you and your investments from dust, Atlas Copco has developed a series of top-quality air filters. They ensure that your operation runs smoothly, your equipment lasts longer and your end products meet even the highest quality standards.
Know your air quality requirements
If you are unsure, and only know that you have to protect your system from dust, then you need to find out your air quality requirements. For some applications, such as inflating tires, some contaminants in the compressed air do not pose any problems. Others, such as applications in cleanroom environments, require the highest air purity
Knowing your air quality requirements and which standards to comply with will help you select the right air filter, which could lower your investment costs and ensure that you get the most out of your compressed air system. If you are not sure which ISO standard applies to your operation or which type of contaminant you have to protect your system from, you can contact Atlas Copco or consult the two tables below.
Certification
- ISO 8573-4:2019
- ISO 12500-3:2009
Find out more useful information on the DDp+/PDp+ series in our brochure.
For filtering out dust (as well as other contaminants), Atlas Copco also offers the high-pressure H series of filters and its silicone-free SFA series.
The ideal filtration technology
The DDp+/PDp+ series uses pleated technology filtration media. It is the preferred method to capture dry particulate in compressed air. Over time, particles will unavoidably clog the filter media. Because pleated surfaces have a larger surface area, they ensure that filters last longer and experience a lower pressure drop.
inPASS™ bypass
In addition to outstanding filters, you also get the revolutionary built-in bypass that allows you to service your filter without disrupting the air flow. To you that means big investment savings by eliminating the need to install an expensive external piping bypass, lower operating and energy costs as well as reduced maintenance times.
Service indicator
To ensure constant air quality, the service indicator allows for an easy check of the filter’s running hours, differential pressure, and the maintenance status. It can even send a remote alert.
Cutting-edge filtration technology
Atlas Copco’s dedicated filtration team is always looking for ways to give you a competitive edge. Our new generation of filters features several innovations that make your filtration system more efficient and its operation easier. Here are just three examples.
Filter applications
Find the right filter for your application
The table below shows the various ISO 8573-1:2010 air purity classes and the Atlas Copco filters and dryer combinations that meet these classes.
If you are unsure which ISO class you need but you do know what contaminant you have to protect your system from, then check out the general and special applications tables below. It will provide you with an overview of which Atlas Copco filters are the ideal solution for which contaminant.
Filter applications
| ISO 8573-1:2010 class | Solid particles | Water | Oil (aerosol, liquid, vapor) | ||
| Wet conditions | Dry conditions | ||||
| As specified by the customer* | Oil-free compressor | ||||
| 1 | DD+ & PD+ | DDp+ & PDp+ | Desiccant dryer | DD+ & PD+ | & QD+/QDT |
| UD+ | UD+ | & QD+/QDT | |||
| 2 | DD+ | DDp+ | Desiccant dryer, rotary drum dryer | DD+ & PD+ | |
| UD+ | |||||
| 3 | DD+ | DDp+ | Desiccant dryer, membrane dryer, rotary drum dryer | DD+ | |
| 4 | DD+ | DDp+ | Membrane dryer, refrigerant dryer | DD+ | |
| 5 | DD+ | DDp+ | Membrane dryer, refrigerant dryer | - | |
| 6 | - | - | Membrane dryer, refrigerant dryer | - | |
Air contaminants
Dirt, water and oil are no match for Atlas Copco’s filters. They are designed to remove one or more of the following contaminants:
- DIRT: dust, solid particles, rust particles, micro-organisms.
- WATER: condensed liquid water, water aerosols, acidic condensates.
- OIL: liquid oil, oil aerosol, hydrocarbon vapor.
Dry dust
Micro organism
Oil aerosol
Wet dust
Oil vapor
Water drops
Designs
Threaded design
Tower design
Flanged design
General applications
| Name | DDp+ | PDp+ | DD+ | PD+ | UD+ | QD+ | QDT+ |
| Grade | Rough | Fine | Rough | Fine | Ultimate | Basic | Optimal |
| Contaminant | Dry dust | Oil aerosol/wet dust | Oil vapor | ||||
Special applications
| Name | H | SFA | ||||
| High-pressure | Silicone-free | |||||
| Grade | Rough & fine | Rough & fine | Basic | Rough & fine | Rough & fine | Basic |
| Contaminant | Dry dust | Oil aerosol/wet dust | Oil vapor | Dry dust | Oil aerosol/wet dust | Oil vapor |
Correction factors
When working with other pressures than the nominal pressure, the actual FAD capacity is calculated by multiplying the correction factor with the rated AML capacity. The calculated actual flow capacity corresponds to the AML-stated pressure drop.
| Working pressure in bar(g) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 14 | 16 |
| Correction factor | 0.38 | 0.53 | 0.65 | 0.75 | 0.83 | 0.92 | 1 | 1.06 | 1.2 | 1.31 | 1.41 | 1.5 |
Specifications
DD+/PD+/UD+/DDp+/PDp+/QD+ series
| Filter size with or without inPASS™ | Nominal capacity | Reference pressure | Maximum pressure | Connections | ||||
| l/s | cfm | bar(e) | psig | bar(e) | psig | G | NPT | |
| 7+ | 7 | 15 | 7 | 102 | 16 | 232 | G 1/2 | NPT 1/2 |
| 15+ | 15 | 32 | 7 | 102 | 16 | 232 | G 1/2 | NPT 1/2 |
| 25+ | 25 | 53 | 7 | 102 | 16 | 232 | G 1/2 | NPT 1/2 |
| 45+ | 45 | 95 | 7 | 102 | 16 | 232 | G 3/4 | NPT 3/4 |
| 75+ | 75 | 159 | 7 | 102 | 16 | 232 | G1 | NPT 1 |
| 110+ | 110 | 233 | 7 | 102 | 16 | 232 | G 1 1/2 | NPT 1 1/2 |
| 145+ | 145 | 307 | 7 | 102 | 16 | 232 | G 1 1/2 | NPT 1 1/2 |
| 180+ | 180 | 381 | 7 | 102 | 16 | 232 | G 1 1/2 | NPT 1 1/2 |
| 240+ | 240 | 509 | 7 | 102 | 16 | 232 | G 2 | NPT 2 |
| 300+ | 300 | 636 | 7 | 102 | 16 | 232 | G 2 | NPT 2 |
| G 2 1/2 | NPT 2 1/2 | |||||||
| With inPASS™ | ||||||||
| 380+ | 380 | 805 | 7 | 102 | 16 | 232 | G 3 | NPT 3 |
| 425+ | 425 | 901 | 7 | 102 | 16 | 232 | G 3 | NPT 3 |
| 510+ | 630 | 1081 | 7 | 102 | 16 | 232 | G 3 | NPT 3 |
| Without inPASS™ | ||||||||
| 360+ | 360 | 763 | 7 | 102 | 16 | 232 | G 2 1/2 | NPT 2 1/2 |
| 430+ | 430 | 911 | 7 | 102 | 16 | 232 | G 3 | NPT 3 |
| 525+ | 525 | 1112 | 7 | 102 | 16 | 232 | G 3 | NPT 3 |
| 630+ | 630 | 1335 | 7 | 102 | 16 | 232 | G 3 | NPT 3 |
| Flanged | Flanged connection | |||||||
| 550+F/630+F | 550 | 1165 | 7 | 102 | 16 | 232 | DN 80 | |
| 850+F/970+F | 850 | 1801 | 7 | 102 | 16 | 232 | DN 100 | |
| 850+T | 850 | 1801 | 7 | 102 | 16 | 232 | DN 100 | |
| 1100+F/1260+F | 1100 | 2331 | 7 | 102 | 16 | 232 | DN 100 | |
| 1100+T | 1100 | 2331 | 7 | 102 | 16 | 232 | DN 100 | |
| 1400+F/1600+F | 1400 | 2967 | 7 | 102 | 16 | 232 | DN 150 | |
| 1800+F/2200+F | 1800 | 3814 | 7 | 102 | 16 | 232 | DN 150 | |
| 2200+F/2400+F | 2200 | 4662 | 7 | 102 | 16 | 232 | DN 150 | |
| 3000+F/3600+F | 3000 | 6357 | 7 | 102 | 16 | 232 | DN 200 | |
| 4000+F | 4000 | 8476 | 7 | 102 | 16 | 232 | DN 200 | |
| 5000+F | 5000 | 10595 | 7 | 102 | 16 | 232 | DN 200 | |
| 6000+F | 6000 | 12714 | 7 | 102 | 16 | 232 | DN 250 | |
| 7000+F | 7000 | 14833 | 7 | 102 | 16 | 232 | DN 250 | |
| 8000+F | 8000 | 16952 | 7 | 102 | 16 | 232 | DN 300 | |
Downloads
Additional readings
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