PFR stainless steel dust filters up to 14 bar

The PFR dust filter has a pleated element of borosilicate microfibres and traps solid particles and dust larger than 1 µm — solid particle class 3 according to ISO 8573-1. The element withstands +120 °C.
The PFR filter comes in 18 sizes (G 1/4" to DN200) with flows of 1,250 to 352,000 l/min at 7 bar; working pressure up to 14 bar, sizes from DN100 up to 10 bar. It is one of the stages of the PF filters — the housing is the same for all stages, only the element differs.
PFR filters by size
The size determines the connection and the flow. Each size has its own PF range spare element.
| PFR filters and spare elements by size | ||||||
|---|---|---|---|---|---|---|
| Filter | Connection | l/min at 7 bar | Nm³/h at 7 bar | Height A × diameter C | Weight | Spare element |
| PFR-005 | G 1/4" | 1,250 | 75 | 206 × 76.1 mm | 1.8 kg | PFR-005V |
| PFR-007 | G 3/8" | 1,750 | 105 | 236 × 76.1 mm | 2 kg | PFR-007V |
| PFR-010 | G 1/2" | 2,500 | 150 | 239 × 76.1 mm | 2.1 kg | PFR-010V |
| PFR-018 | G 3/4" | 3,750 | 225 | 263 × 76.1 mm | 2.2 kg | PFR-018V |
| PFR-030 | G 1" | 5,250 | 315 | 280 × 88.9 mm | 3 kg | PFR-030V |
| PFR-047 | G 1 1/4" | 7,000 | 420 | 349 × 88.9 mm | 3.4 kg | PFR-047V |
| PFR-070 | G 1 1/2" | 10,000 | 600 | 376 × 114.3 mm | 4.6 kg | PFR-070V |
| PFR-094 | G 2" | 15,000 | 900 | 445 × 114.3 mm | 5.2 kg | PFR-094V |
| PFR-150 | G 2" | 21,000 | 1,260 | 572 × 114.3 mm | 6 kg | PFR-150V |
| PFR-175 | G 2 1/2" | 28,000 | 1,680 | 736 × 139.7 mm | 9.6 kg | PFR-175V |
| PFR-200 | G 3" | 40,000 | 2,400 | 979 × 139.7 mm | 13.7 kg | PFR-200V |
| PFR-240 | G 3" | 60,000 | 3,600 | 1,041 × 168.3 mm | 18.5 kg | PFR-240V |
| PFR-450 | DN100 flange | 84,000 | 5,040 | 981 × 219.1 mm | 56 kg | 3× PFR-175V |
| PFR-600 | DN100 flange | 112,000 | 6,720 | 1,240 × 219.1 mm | 60 kg | 3× PFR-200V |
| PFR-900 | DN150 flange | 160,000 | 9,600 | 1,311 × 273 mm | 90 kg | 4× PFR-200V |
| PFR-1200 | DN150 flange | 224,000 | 13,440 | 1,330 × 323.9 mm | 112 kg | 6× PFR-200V |
| PFR-1800 | DN200 flange | 288,000 | 17,280 | 1,496 × 406.4 mm | 201 kg | 8× PFR-200V |
| PFR-2000 | DN200 flange | 352,000 | 21,120 | 1,496 × 406.4 mm | 202 kg | 10× PFR-200V |
The flows apply to a pressure of 7 bar and a temperature of +20 °C. Dimensions according to the manufacturer’s technical data sheet; you will find further data on the product page of each filter.
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When to use it
The dust filter R is suitable where the air must be free of dust and fine solid particles but oil is not a problem. The manufacturer does not state an oil class for it — oil aerosol is handled by the fine pre-filter M.
Like the fine pre-filter and the microfilter, the element is made of borosilicate microfibres and withstands +120 °C.
Where to place it

After the PFP fibre pre-filter or the PFN5 basic filter, before the PFM fine pre-filter.
Flow by pressure
The catalogue flows apply to a pressure of 7 bar and a temperature of +20 °C. At a different pressure, they are multiplied by the correction factor: 1.88 at 14 bar.
| PFR filter flow in l/min by pressure | ||||
|---|---|---|---|---|
| Size (connection) | 4 bar | 7 bar | 10 bar | 14 bar |
| 005 (G 1/4") | 788 | 1,250 | 1,725 | 2,350 |
| 007 (G 3/8") | 1,103 | 1,750 | 2,415 | 3,290 |
| 010 (G 1/2") | 1,575 | 2,500 | 3,450 | 4,700 |
| 018 (G 3/4") | 2,363 | 3,750 | 5,175 | 7,050 |
| 030 (G 1") | 3,308 | 5,250 | 7,245 | 9,870 |
| 047 (G 1 1/4") | 4,410 | 7,000 | 9,660 | 13,160 |
| 070 (G 1 1/2") | 6,300 | 10,000 | 13,800 | 18,800 |
| 094 (G 2") | 9,450 | 15,000 | 20,700 | 28,200 |
| 150 (G 2") | 13,230 | 21,000 | 28,980 | 39,480 |
| 175 (G 2 1/2") | 17,640 | 28,000 | 38,640 | 52,640 |
| 200 (G 3") | 25,200 | 40,000 | 55,200 | 75,200 |
| 240 (G 3") | 37,800 | 60,000 | 82,800 | 112,800 |
| 450 (DN100 flange) | 52,920 | 84,000 | 115,920 | – |
| 600 (DN100 flange) | 70,560 | 112,000 | 154,560 | – |
| 900 (DN150 flange) | 100,800 | 160,000 | 220,800 | – |
| 1200 (DN150 flange) | 141,120 | 224,000 | 309,120 | – |
| 1800 (DN200 flange) | 181,440 | 288,000 | 397,440 | – |
| 2000 (DN200 flange) | 221,760 | 352,000 | 485,760 | – |
Element, condensate drainage and maintenance

A PF range element is fitted in the housing — for example, the PFR-010V for the PFR-010. The same element also fits the HPFR-010, WFITR-010, WFIFR-010, WFIWR-010 and WHFITR-010. Flanged filters from DN100 have several elements — their number is given in the table for each size. Element working temperature +1.5 to +120 °C.
The filter is supplied with an element, without a condensate drain. For PF filters, the manufacturer offers the AOK20SS stainless steel float drain up to 20 bar and +65 °C. The drain outlet in the bottom has a G 1/4" thread, G 1" for the flanged sizes.
Replace the element at least once every 12 months. Once a year, also check the housing for visible damage.
Accessories for PFR filters
The same stage in other ranges
Stage R also comes in the HPFR filters up to 50 bar, WFITR filters up to 14 bar, WFIFR filters up to 14 bar, WFIWR filters up to 14 bar and WHFITR filters up to 50 bar. The elements are the same for all ranges.
Ventilek’s tip
Dust, or oil too? The class 3 dust filter R traps dust down to 1 µm. If oil aerosol is also a problem, add a fine pre-filter M after it.
- What filtration rating does the PFR dust filter have?
- The element traps particles larger than 1 µm, solid particle class 3 according to ISO 8573-1.
- What temperature does it withstand?
- The element from +1.5 to +120 °C.
- When should the element be replaced?
- At least once every 12 months.
Product sorting
List of products
With a G 1/4" connection and a flow of 1,250 l/min at 7 bar, the PFR-005 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a G 3/8" connection and a flow of 1,750 l/min at 7 bar, the PFR-007 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a G 1/2" connection and a flow of 2,500 l/min at 7 bar, the PFR-010 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a G 3/4" connection and a flow of 3,750 l/min at 7 bar, the PFR-018 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a G 1" connection and a flow of 5,250 l/min at 7 bar, the PFR-030 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a G 1 1/4" connection and a flow of 7,000 l/min at 7 bar, the PFR-047 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a G 1 1/2" connection and a flow of 10,000 l/min at 7 bar, the PFR-070 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a G 2" connection and a flow of 15,000 l/min at 7 bar, the PFR-094 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a DN150 connection and a flow of 224,000 l/min at 7 bar, the PFR-1200 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a G 2" connection and a flow of 21,000 l/min at 7 bar, the PFR-150 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a G 2 1/2" connection and a flow of 28,000 l/min at 7 bar, the PFR-175 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a DN200 connection and a flow of 288,000 l/min at 7 bar, the PFR-1800 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a G 3" connection and a flow of 40,000 l/min at 7 bar, the PFR-200 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a DN200 connection and a flow of 352,000 l/min at 7 bar, the PFR-2000 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a G 3" connection and a flow of 60,000 l/min at 7 bar, the PFR-240 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a DN100 connection and a flow of 84,000 l/min at 7 bar, the PFR-450 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a DN100 connection and a flow of 112,000 l/min at 7 bar, the PFR-600 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a DN150 connection and a flow of 160,000 l/min at 7 bar, the PFR-900 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...

