Dust compressed air filters
A dust filter captures solid particles from 1 µm. It is most often installed after a desiccant dryer, where it captures dust released from the desiccant so that it does not travel into the network. It also works as a finer stage in front of sensitive consumers. The listing shows complete filters and their spare elements – separate them with the Product type filter.
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Where to use a dust filter
After a desiccant dryer, in front of measuring and control equipment and in process networks. You will also find dust filters for oxygen, AAFO2 and HFO2.
Dust filter series
| Series | Pressure up to | Connection | Housing |
|---|---|---|---|
| AAFHTR | 13 bar | 1/8"–3" | aluminium |
| PFI1, PFIW1, PFR | 14 bar | 1/4"–3", DN100–DN200 | stainless steel |
| SPFI1, SPFIW1, SPFR | 14 bar | 1/4"–3" | stainless steel |
| WFIFI1, WFIFIW1, WFIFR | 14 bar | DN15–DN200 | stainless steel |
| WFITI1, WFITIW1, WFITR | 14 bar | 1/4"–3" | stainless steel |
| WFIWI1, WFIWIW1, WFIWR | 14 bar | DN10–DN80 | stainless steel |
| AAFR | 16 bar | 1/4"–3" | aluminium |
| AAFO2 | 16 bar | 1/8"–3" | aluminium |
| AAFSR | 16 bar | 1/8"–3" | aluminium |
| BFR | 16 bar | DN80–DN300 | carbon steel |
| NGF PF | 16 bar | 1/4"–3" | aluminium |
| BFHPR | 25 bar | DN80–DN300 | carbon steel |
| HFR | 50 bar | 1/2"–3" | aluminium |
| HFO2 | 50 bar | 1/2"–3" | aluminium |
| HPFI1, HPFIW1, HPFR | 50 bar | 1/2"–3" | stainless steel |
| WHFITI1, WHFITIW1, WHFITR | 50 bar | 1/2"–3" | stainless steel |
| CHP1R | 100 bar | 1/4"–2" | carbon steel |
| IHP1R | 100 bar | 1/4"–2" | stainless steel |
| CHP2R | 250 bar | 1/4"–2" | carbon steel |
| IHP2R | 250 bar | 1/4"–2" | stainless steel |
| CHP4R | 420 bar | 1/4"–2" | carbon steel |
| IHP4R | 420 bar | 1/4"–2" | stainless steel |
How to choose a dust filter
- Always a dust filter after a desiccant dryer, sized for its flow – without it desiccant dust would travel into the network.
- Pressure and housing: up to 16 bar the aluminium AAF series, up to 16 and 25 bar the flanged BF and BFHP, up to 50 bar HF, stainless process series up to 14 and 50 bar and high-pressure CHP and IHP up to 100, 250 and 420 bar.
- Size by the flow at your pressure. The nominal flow applies to the reference pressure; at lower pressure a larger filter is needed – the conversion is on each series page.
- Clogging: a dust element clogs gradually; a differential pressure gauge shows when to replace it.
The order of all grades from coarse to sterile and all series are in the overview of industrial filtration according to ISO 8573-1; spare elements are listed with each series and in the overview of spare filter elements.
Product sorting
List of products
WALTER WDF-53 refrigeration dryer for compressed air with a built-in 1 µm pre-filter and 0.01 µm fine filter. Pressure dew point +3 °C (water class 4), flow rate 53 m³/h (883...
With a G 1/2" thread and a flow of 1,300 l/min at 7 bar, the AAFR-78 dust filter traps smaller solid contaminants and dust particles larger than 1 µm. Working pressure up to 16...
Omega Air AFR-33 dust filter with a 1" thread and a flow of 3,300 l/min at 7 bar, up to 16 bar. The AF series has been replaced by the AAF series; the successor is the AAFR-198.
Spare element PF-03 with a white end cap for the Hankison F03-B-PF dust filter. Replacement: 6,000 h / 12 months.
Spare element AAFR-335V for dust filter AAFR-335. Recommended replacement every 12 months or 4,000 operating hours.
With a G 1/2" thread and a flow of 1,416 l/min, the Hankison NGF F04-B-PF dust filter traps solid particles larger than 1 µm with an efficiency of 99.999%, as well as large...
With a G 3/8" thread and a flow of 983 l/min, the Hankison NGF F03-B-PF dust filter traps solid particles larger than 1 µm with an efficiency of 99.999%, as well as large...
Spare element PF-02 with a white end cap for the Hankison F02-B-PF dust filter. Replacement: 6,000 h / 12 months.
Spare element AAFR-78V for dust filter AAFR-78. Recommended replacement every 12 months or 4,000 operating hours.
Spare element PF-04 with a white end cap for the Hankison F04-B-PF dust filter. Replacement: 6,000 h / 12 months.
Spare element AAFR-35V for dust filters AAFR-35 and AAFR-60. Recommended replacement every 12 months or 4,000 operating hours.
Spare element PF-07 with a white end cap for the Hankison F07-B-PF dust filter. Replacement: 6,000 h / 12 months.
WALTER WDF-100 refrigeration dryer for compressed air with a built-in 1 µm pre-filter and 0.01 µm fine filter. Pressure dew point +3 °C (water class 4), flow rate 100 m³/h...
Spare element PF-08 with a white end cap for the Hankison F08-B-PF dust filter. Replacement: 6,000 h / 12 months.
Spare element PF-10 with a white end cap for the Hankison F10-B-PF dust filter. Replacement: 6,000 h / 12 months.
With a G 3/4" thread and a flow of 2,916 l/min, the Hankison NGF F07-B-PF dust filter traps solid particles larger than 1 µm with an efficiency of 99.999%, as well as large...
With a G 3/4" thread and a flow of 2,116 l/min, the Hankison NGF F06-B-PF dust filter traps solid particles larger than 1 µm with an efficiency of 99.999%, as well as large...
WALTER WDF-70 refrigeration dryer for compressed air with a built-in 1 µm pre-filter and 0.01 µm fine filter. Pressure dew point +3 °C (water class 4), flow rate 70 m³/h (1,167...
WALTER WDF-155 refrigeration dryer for compressed air with a built-in 1 µm pre-filter and 0.01 µm fine filter. Pressure dew point +3 °C (water class 4), flow rate 155 m³/h...
Spare element AAFR-780V for dust filter AAFR-780. Recommended replacement every 12 months or 4,000 operating hours.
Spare element AAFR-120V for dust filter AAFR-120. Recommended replacement every 12 months or 4,000 operating hours.
Spare element HFR-018V for the HFR-018 dust filter with a G 1" thread. Recommended replacement at least once a year or at a pressure drop of 350 mbar.
Spare element AAFR-1500V for dust filters AAFR-1500 and AAFR-1680. Recommended replacement every 12 months or 4,000 operating hours.
Spare element AAFR-2160V for dust filter AAFR-2160. Recommended replacement every 12 months or 4,000 operating hours.
Spare element AAFR-510V for dust filter AAFR-510. Recommended replacement every 12 months or 4,000 operating hours.
Spare element AAFR-1000V for dust filter AAFR-1000. Recommended replacement every 12 months or 4,000 operating hours.
Spare element PF-06 with a white end cap for the Hankison F06-B-PF dust filter. Replacement: 6,000 h / 12 months.
With a G 3/4" thread and a flow of 2,000 l/min at 7 bar, the AAFR-120 dust filter traps smaller solid contaminants and dust particles larger than 1 µm. Working pressure up to 16...
Spare element PFI1-200V for PF, HPF, WFIT, WFIF, WFIW, WHFIT and SPF sintered pre-filters of size 200 — sintered stainless steel 1.4404. Replace it at least once every 12...
With a G 1/4" thread and a flow of 417 l/min at 7 bar, the AAFR-25 dust filter traps smaller solid contaminants and dust particles larger than 1 µm. Working pressure up to 16 bar.
With a G 3/8" thread and a flow of 500 l/min at 7 bar, the AAFR-30 dust filter traps smaller solid contaminants and dust particles larger than 1 µm. Working pressure up to 16 bar.
With a G 1/4" thread and a flow of 583 l/min at 7 bar, the AAFR-35 dust filter traps smaller solid contaminants and dust particles larger than 1 µm. Working pressure up to 16 bar.
Spare element PF-11 with a white end cap for the Hankison F11-B-PF dust filter. Replacement: 6,000 h / 12 months.
With a G 1/2" thread and a flow of 1,183 l/min at 7 bar, the HFR-007 dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up to 50 bar.
With a G 2" thread and a flow of 25,000 l/min at 7 bar, the AAFR-1500 dust filter traps smaller solid contaminants and dust particles larger than 1 µm. Working pressure up to 16...
With a G 1 1/2" thread and a flow of 8,500 l/min at 7 bar, the AAFR-510 dust filter traps smaller solid contaminants and dust particles larger than 1 µm. Working pressure up to...
With a G 1 1/2" thread and a flow of 13,000 l/min at 7 bar, the AAFR-780 dust filter traps smaller solid contaminants and dust particles larger than 1 µm. Working pressure up to...
With a G 3/8" thread and a flow of 1,000 l/min at 7 bar, the AAFR-60 dust filter traps smaller solid contaminants and dust particles larger than 1 µm. Working pressure up to 16...
With a G 1" thread and a flow of 3,300 l/min at 7 bar, the AAFR-198 dust filter traps smaller solid contaminants and dust particles larger than 1 µm. Working pressure up to 16 bar.
With a G 2" thread and a flow of 16,667 l/min at 7 bar, the AAFR-1000 dust filter traps smaller solid contaminants and dust particles larger than 1 µm. Working pressure up to 16...