10 steps to a green and more efficient production

Carbon reduction for green production - all you need to know
10 steps to green compressed air production

Everything you need to know about your pneumatic conveying process

Discover how you can create a more efficient pneumatic conveying process.
3D images of blowers in cement plant
Close
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.

Dust filtration for your air compressor

Key technical specifications

Top Downloads

PRODUCT BROCHURE
Compressed air filters
Download
Download
View all Downloads
    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.

DD 35+ PD 35+

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
Next generation compressed air filters DDp

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.

Get a free quote from our Atlas Copco experts

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 icon
Wet dust icon
Oil vapor icon

Dry dust

Micro organism

Oil aerosol

Wet dust

Oil vapor

Water drops

Designs

Threaded design

 Threaded design filter

Tower design

Tower design filter

Flanged design

Flanged design filter

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

Interactive ebooks

Related products

Related products

Services

Additional services