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High pressure filtration

Contact our expert

Wrapped technology

Maximum durability

Lowest pressure drop

8000hr service intervals

High pressure filtration

Regular filters that take on one group of contaminants each, Atlas Copco has also developed high-pressure air filter variants that guarantee air purity up to a pressure of 350 bar: The H series. They efficiently reduce contaminants in a high-pressure environment in a cost-effective manner.

Know your air quality requirements

If you know that a filter from the H series is right for you, then find out more details on the specifications below.

If you are unsure, and only know that you have to protect your system, then you need to find out your air quality requirements.

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, you can contact Atlas Copco or consult this table below.

H series

This high-pressure filtration solution has been engineered to cost-effectively reduce a wide range of contaminants in your compressed air stream. As a result, they provide you with the best air purity and meet even stringent quality demands for working pressures of up to 350 bar.

All filter housings of the H series are hydraulically tested to ensure a safe and reliable operations at all times. Using high-efficiency glass fiber and fleece media, they ensure a maximum removal of dry and wet dust, particulates, oil aerosol and water droplets (depending on which model you choose. Please consult the table below). As a result, the H series provides optimal protection for your compressed air stream, downstream equipment and end products.

The low pressure drops of these high-pressure air filters offer you substantial energy savings and lower operating costs. In addition, thanks to high-performance stainless-steel cores, double O-rings, epoxy-sealed caps and a filter housing with an anti-corrosive coating, they are also extremely reliable.

Performance

 

DDHp+

PDHp+

DDH+

PDH+

QDH+

Contaminant

Dry dust

Oil aerosol/wet dust

Oil vapor

Test method

ISO 8573-4:2019

ISO 12500-3:2009

ISO 8573-2:2018

ISO 12500-1:2007

ISO 8573-5:2001

Maximum oil carry-over (mg/m³)

-

-

0.08*

0.007*

0.003**

Particle removal efficiency (% at MPPS)

99.92 (0.1)

99.98 (0.06)

N/A

N/A

N/A

ISO class 8573-1

[2:-:-]

[1:-:-]

[2:-:3]

[1:-:2]

[3:-:1]

Dry pressure drop (mbar)

85

100

N/A

N/A

140

Wet pressure drop (mbar)

N/A

N/A

180

215

N/A

Element service

After 4,000 operating hours or 1 year or 350 mbar pressure drop

After 4,000 operating hours or 1 year

After 1,000 operating hours or 1 year

Precede with

N/A

DDHp+

N/A

DDH+

DDH+/PDH+

H series

Technical specifications: sizing

Filter size

Nominal capacity

Connections

DDH, DDHp,
PDH, PDHp,
QDH

m³/h

l/s

cfm

in

15+

54

15

32

3/8

32+

115

32

68

1/2

55+

198

55

117

1/2

80+

288

80

170

3/4 & 1

110+

396

110

233

1

200+

720

200

424

1 1/2

270+

972

270

572

1 1/2

330+

1188

330

699

1 1/2

490+

1764

490

1038

2 & 2 1/2

160+

160

44

94

1/4

250+

250

69

147

3/8

450+

450

125

265

1/2

550+

550

153

324

3/4

835+

835

232

491

1

1250+

1250

347

736

1 1/2

1725+

1725

479

1015

1 1/2

1925+

1925

535

1133

2

3200+

3200

889

1883

2

100+

100

28

59

1/4

200+

200

56

118

3/8

340+

340

94

200

1/2

500+

500

139

294

3/4

1000+

1000

278

589

1

1700+

1700

472

1000

1 1/2

2040+

2040

567

1200

2

3400+

3400

944

2000

2

100+

100

28

59

1/4

315+

315

88

185

1/2

460+

460

128

271

3/4

680+

680

189

400

1

1200+

1200

333

706

1

1700+

1700

472

1000

1 1/2

3400+

3400

944

2000

2

48+

48

13

28

1/4

111+

111

31

65

1/4

255+

255

71

150

1/2

510+

510

142

300

3/4

750+

750

208

441

1

1330+

1330

369

783

1

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

-

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
Dry dust

micro-organism
Micro organism

oil-aerosol
Oil aerosol

wet-dust
Wet dust

oil-vapor
Oil vapor

Water-drops
Water drops

 

Flanged design
Flanged design
Threaded design
Threaded design
Tower design
Tower 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

High-pressure

SFA

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

20 bar aluminum                

Operating pressure

barg

-

-

-

-

-

14

16

18

20

psig

-

-

-

-

-

203

232

261

290

Correction factor

 

 

 

 

 

 

0.9

0.95

1

1.05

50 bar aluminum & stainless Steel

Operating pressure

barg

4

6

8

10

15

20

30

40

50

psig

58

87

116

145

218

290

435

581

726

Correction factor

 

0.14

0.22

0.28

0.34

0.47

0.56

0.7

0.85

1

100 bar stainless Steel

Operating pressure

barg

20

30

40

50

60

70

80

90

100

psig

290

435

581

726

871

1016

1161

1306

1451

Correction factor

 

0.45

0.57

0.68

0.8

0.84

0.88

0.92

0.96

1

350 bar stainless Steel

Operating pressure

barg

 

 

50

100

150

200

250

300

350

psig

 

 

726

1451

2177

2903

3628

4254

5080

Correction factor

 

 

 

0.73

0.78

0.82

0.87

0.91

0.96

1

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