PFP fibre pre-filters for dust up to 14 bar

The PFP fibre pre-filter has a pleated element of acrylic fibres and cellulose and traps solid particles and dust larger than 3 µm — solid particle class 6 according to ISO 8573-1. The housing is made of stainless steel 1.4404.
The PFP 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.
PFP filters by size
The size determines the connection and the flow. Each size has its own PF range spare element.
| PFP 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 |
| PFP-005 | G 1/4" | 1,250 | 75 | 206 × 76.1 mm | 1.8 kg | PFP-005V |
| PFP-007 | G 3/8" | 1,750 | 105 | 236 × 76.1 mm | 2 kg | PFP-007V |
| PFP-010 | G 1/2" | 2,500 | 150 | 239 × 76.1 mm | 2.1 kg | PFP-010V |
| PFP-018 | G 3/4" | 3,750 | 225 | 263 × 76.1 mm | 2.2 kg | PFP-018V |
| PFP-030 | G 1" | 5,250 | 315 | 280 × 88.9 mm | 3 kg | PFP-030V |
| PFP-047 | G 1 1/4" | 7,000 | 420 | 349 × 88.9 mm | 3.4 kg | PFP-047V |
| PFP-070 | G 1 1/2" | 10,000 | 600 | 376 × 114.3 mm | 4.6 kg | PFP-070V |
| PFP-094 | G 2" | 15,000 | 900 | 445 × 114.3 mm | 5.2 kg | PFP-094V |
| PFP-150 | G 2" | 21,000 | 1,260 | 572 × 114.3 mm | 6 kg | PFP-150V |
| PFP-175 | G 2 1/2" | 28,000 | 1,680 | 736 × 139.7 mm | 9.6 kg | PFP-175V |
| PFP-200 | G 3" | 40,000 | 2,400 | 979 × 139.7 mm | 13.7 kg | PFP-200V |
| PFP-240 | G 3" | 60,000 | 3,600 | 1,041 × 168.3 mm | 18.5 kg | PFP-240V |
| PFP-450 | DN100 flange | 84,000 | 5,040 | 981 × 219.1 mm | 56 kg | 3× PFP-175V |
| PFP-600 | DN100 flange | 112,000 | 6,720 | 1,240 × 219.1 mm | 60 kg | 3× PFP-200V |
| PFP-900 | DN150 flange | 160,000 | 9,600 | 1,311 × 273 mm | 90 kg | 4× PFP-200V |
| PFP-1200 | DN150 flange | 224,000 | 13,440 | 1,330 × 323.9 mm | 112 kg | 6× PFP-200V |
| PFP-1800 | DN200 flange | 288,000 | 17,280 | 1,496 × 406.4 mm | 201 kg | 8× PFP-200V |
| PFP-2000 | DN200 flange | 352,000 | 21,120 | 1,496 × 406.4 mm | 202 kg | 10× PFP-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 fibre pre-filter P is suitable where the air contains dust and finer contaminants that a stainless steel mesh lets through. The element only withstands +65 °C — for warmer air, there are meshes and sintered elements up to +150 °C.
The manufacturer does not state an oil class for it; oil aerosol is handled by the fine pre-filter M.
Where to place it

After the PFN5 basic filter or the PFI20 sintered pre-filter, before the PFR dust filter or 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.
| PFP 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 PFP-010V for the PFP-010. The same element also fits the HPFP-010, WFITP-010, WFIFP-010, WFIWP-010 and WHFITP-010. Flanged filters from DN100 have several elements — their number is given in the table for each size. Element working temperature +1.5 to +65 °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 PFP filters
The same stage in other ranges
Stage P also comes in the HPFP filters up to 50 bar, WFITP filters up to 14 bar, WFIFP filters up to 14 bar, WFIWP filters up to 14 bar and WHFITP filters up to 50 bar. The elements are the same for all ranges.
Ventilek’s tip
Fibres only up to +65 °C. The fibre element P is suitable for cooler air. For warmer air, choose the N5 mesh or a sintered pre-filter — they withstand +150 °C.
- What filtration rating does the PFP fibre pre-filter have?
- The element traps particles larger than 3 µm, solid particle class 6 according to ISO 8573-1.
- What temperature does it withstand?
- The element from +1.5 to +65 °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 PFP-005 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to...
With a G 3/8" connection and a flow of 1,750 l/min at 7 bar, the PFP-007 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to...
With a G 1/2" connection and a flow of 2,500 l/min at 7 bar, the PFP-010 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to...
With a G 3/4" connection and a flow of 3,750 l/min at 7 bar, the PFP-018 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to...
With a G 1" connection and a flow of 5,250 l/min at 7 bar, the PFP-030 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to ISO...
With a G 1 1/4" connection and a flow of 7,000 l/min at 7 bar, the PFP-047 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to...
With a G 1 1/2" connection and a flow of 10,000 l/min at 7 bar, the PFP-070 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to...
With a G 2" connection and a flow of 15,000 l/min at 7 bar, the PFP-094 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to ISO...
With a DN150 connection and a flow of 224,000 l/min at 7 bar, the PFP-1200 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to...
With a G 2" connection and a flow of 21,000 l/min at 7 bar, the PFP-150 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to ISO...
With a G 2 1/2" connection and a flow of 28,000 l/min at 7 bar, the PFP-175 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to...
With a DN200 connection and a flow of 288,000 l/min at 7 bar, the PFP-1800 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to...
With a G 3" connection and a flow of 40,000 l/min at 7 bar, the PFP-200 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to ISO...
With a DN200 connection and a flow of 352,000 l/min at 7 bar, the PFP-2000 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to...
With a G 3" connection and a flow of 60,000 l/min at 7 bar, the PFP-240 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to ISO...
With a DN100 connection and a flow of 84,000 l/min at 7 bar, the PFP-450 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to...
With a DN100 connection and a flow of 112,000 l/min at 7 bar, the PFP-600 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to...
With a DN150 connection and a flow of 160,000 l/min at 7 bar, the PFP-900 fibre pre-filter traps solid particles and dust larger than 3 µm, solid particle class 6 according to...

