PFN25 stainless steel coarse mesh filters up to 14 bar
The PFN25 coarse filter has a wrapped element made of stainless steel mesh 1.4301 and traps solid particles larger than 25 µm. It is the first filtration stage: it removes larger contaminants before they reach the finer stages, which then last longer.
The PFN25 filter comes in 13 sizes (G 1/4" to DN100) with flows of 1,250 to 84,000 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.
PFN25 filters by size
The size determines the connection and the flow. Each size has its own PF range spare element.
| PFN25 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 |
| PFN25-005 | G 1/4" | 1,250 | 75 | 206 × 76.1 mm | 1.8 kg | PFN25-005V |
| PFN25-007 | G 3/8" | 1,750 | 105 | 236 × 76.1 mm | 2 kg | PFN25-007V |
| PFN25-010 | G 1/2" | 2,500 | 150 | 239 × 76.1 mm | 2.1 kg | PFN25-010V |
| PFN25-018 | G 3/4" | 3,750 | 225 | 263 × 76.1 mm | 2.2 kg | PFN25-018V |
| PFN25-030 | G 1" | 5,250 | 315 | 280 × 88.9 mm | 3 kg | PFN25-030V |
| PFN25-047 | G 1 1/4" | 7,000 | 420 | 349 × 88.9 mm | 3.4 kg | PFN25-047V |
| PFN25-070 | G 1 1/2" | 10,000 | 600 | 376 × 114.3 mm | 4.6 kg | PFN25-070V |
| PFN25-094 | G 2" | 15,000 | 900 | 445 × 114.3 mm | 5.2 kg | PFN25-094V |
| PFN25-150 | G 2" | 21,000 | 1,260 | 572 × 114.3 mm | 6 kg | PFN25-150V |
| PFN25-175 | G 2 1/2" | 28,000 | 1,680 | 736 × 139.7 mm | 9.6 kg | PFN25-175V |
| PFN25-200 | G 3" | 40,000 | 2,400 | 979 × 139.7 mm | 13.7 kg | PFN25-200V |
| PFN25-240 | G 3" | 60,000 | 3,600 | 1,041 × 168.3 mm | 18.5 kg | PFN25-240V |
| PFN25-450 | DN100 flange | 84,000 | 5,040 | 981 × 219.1 mm | 56 kg | 3× PFN25-175V |
The flows apply to a pressure of 7 bar and a temperature of +20 °C. Dimensions and weights 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 coarse filter is suitable at the start of the filtration, where larger contaminants from the compressor or the air line enter the air. It does not trap oil or vapours; the manufacturer does not state an ISO 8573-1 class for it.
Like the housing, the stainless steel mesh withstands up to +150 °C.
Where to place it
At the start of the filtration, before the PFN5 basic filter or the PFI1 sintered 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.
| PFN25 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 | – |
Element, condensate drainage and maintenance
A PF range element is fitted in the housing — for example, the PFN25-010V for the PFN25-010. The same element also fits the WFITN25-010 and WFIFN25-010. Flanged filters from DN100 have several elements — their number is given in the table for each size. Element working temperature +1.5 to +150 °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 PFN25 filters
The same stage in other ranges
Stage N25 also comes in the WFITN25 filters up to 14 bar and WFIFN25 filters up to 14 bar. The elements are the same for all ranges.
Ventilek’s tip
A coarse mesh protects the fine ones. When larger contaminants come loose in the air line, the N25 stainless steel mesh traps them, and the fine elements after it do not clog as quickly.
- What filtration rating does the PFN25 coarse filter have?
- The mesh traps particles larger than 25 µm. The manufacturer does not state an ISO 8573-1 class for it.
- Does it also trap oil?
- No. Oil aerosol is handled by the fine pre-filter M.
- When should the element be replaced?
- At least once every 12 months.
Bestsellers
Product sorting
List of products
With a G 1/4" connection and a flow of 1,250 l/min at 7 bar, the PFN25-005 coarse filter traps coarse solid contaminants larger than 25 µm and protects the finer stages after...
With a G 3/8" connection and a flow of 1,750 l/min at 7 bar, the PFN25-007 coarse filter traps coarse solid contaminants larger than 25 µm and protects the finer stages after...
With a G 1/2" connection and a flow of 2,500 l/min at 7 bar, the PFN25-010 coarse filter traps coarse solid contaminants larger than 25 µm and protects the finer stages after...
With a G 3/4" connection and a flow of 3,750 l/min at 7 bar, the PFN25-018 coarse filter traps coarse solid contaminants larger than 25 µm and protects the finer stages after...
With a G 1" connection and a flow of 5,250 l/min at 7 bar, the PFN25-030 coarse filter traps coarse solid contaminants larger than 25 µm and protects the finer stages after it....
With a G 1 1/4" connection and a flow of 7,000 l/min at 7 bar, the PFN25-047 coarse filter traps coarse solid contaminants larger than 25 µm and protects the finer stages after...
With a G 1 1/2" connection and a flow of 10,000 l/min at 7 bar, the PFN25-070 coarse filter traps coarse solid contaminants larger than 25 µm and protects the finer stages after...
With a G 2" connection and a flow of 15,000 l/min at 7 bar, the PFN25-094 coarse filter traps coarse solid contaminants larger than 25 µm and protects the finer stages after it....
With a G 2" connection and a flow of 21,000 l/min at 7 bar, the PFN25-150 coarse filter traps coarse solid contaminants larger than 25 µm and protects the finer stages after it....
With a G 2 1/2" connection and a flow of 28,000 l/min at 7 bar, the PFN25-175 coarse filter traps coarse solid contaminants larger than 25 µm and protects the finer stages after...
With a G 3" connection and a flow of 40,000 l/min at 7 bar, the PFN25-200 coarse filter traps coarse solid contaminants larger than 25 µm and protects the finer stages after it....
With a G 3" connection and a flow of 60,000 l/min at 7 bar, the PFN25-240 coarse filter traps coarse solid contaminants larger than 25 µm and protects the finer stages after it....
With a DN100 connection and a flow of 84,000 l/min at 7 bar, the PFN25-450 coarse filter traps coarse solid contaminants larger than 25 µm and protects the finer stages after...
Spare element PFN25-005V for PF, WFIT and SPF coarse filters of size 005 — stainless steel mesh 1.4301. Replace it at least once every 12 months.
Spare element PFN25-007V for PF, WFIT and SPF coarse filters of size 007 — stainless steel mesh 1.4301. Replace it at least once every 12 months.
Spare element PFN25-010V for PF, HPF, WFIT, WFIF and SPF coarse filters of size 010 — stainless steel mesh 1.4301. Replace it at least once every 12 months.
Spare element PFN25-018V for PF, HPF, WFIT, WFIF and SPF coarse filters of size 018 — stainless steel mesh 1.4301. Replace it at least once every 12 months.
Spare element PFN25-030V for PF, HPF, WFIT, WFIF and SPF coarse filters of size 030 — stainless steel mesh 1.4301. Replace it at least once every 12 months.
Spare element PFN25-047V for PF, HPF, WFIT, WFIF and SPF coarse filters of size 047 — stainless steel mesh 1.4301. Replace it at least once every 12 months.
Spare element PFN25-070V for PF, HPF, WFIT, WFIF and SPF coarse filters of size 070 — stainless steel mesh 1.4301. Replace it at least once every 12 months.
Spare element PFN25-094V for PF, HPF, WFIT, WFIF and SPF coarse filters of size 094 — stainless steel mesh 1.4301. Replace it at least once every 12 months.
Spare element PFN25-150V for PF, HPF, WFIT, WFIF and SPF coarse filters of size 150 — stainless steel mesh 1.4301. Replace it at least once every 12 months.
Spare element PFN25-175V for PF, WFIT, WFIF and SPF coarse filters of size 175 — stainless steel mesh 1.4301. Replace it at least once every 12 months.
Spare element PFN25-200V for PF, HPF, WFIT, WFIF and SPF coarse filters of size 200 — stainless steel mesh 1.4301. Replace it at least once every 12 months.
Spare element PFN25-240V for PF, WFIT, WFIF and SPF coarse filters of size 240 — stainless steel mesh 1.4301. Replace it at least once every 12 months.