WFIWN5 stainless steel basic mesh filters up to 14 bar
The WFIWN5 basic filter has a wrapped element made of stainless steel mesh 1.4301 and traps solid particles larger than 5 µm.
The WFIWN5 filter comes in 11 sizes (pipe ø 17.2 to 88.9 mm) with flows of 1,250 to 60,000 l/min at 7 bar; working pressure up to 14 bar. It is one of the stages of the WFIW filters — the housing is the same for all stages, only the element differs.
WFIWN5 filters by size
The size determines the connection and the flow. Each size has its own PF range spare element.
| WFIWN5 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 |
| WFIWN5-005 | welding end ø 17.2 mm | 1,250 | 75 | 202 × 76.1 mm | 1.8 kg | PFN5-005V |
| WFIWN5-010 | welding end ø 21.3 mm | 2,500 | 150 | 240 × 76.1 mm | 2 kg | PFN5-010V |
| WFIWN5-018 | welding end ø 26.9 mm | 3,750 | 225 | 254 × 76.1 mm | 2 kg | PFN5-018V |
| WFIWN5-030 | welding end ø 33.7 mm | 5,250 | 315 | 280 × 88.9 mm | 3 kg | PFN5-030V |
| WFIWN5-047 | welding end ø 42.4 mm | 7,000 | 420 | 337 × 88.9 mm | 3 kg | PFN5-047V |
| WFIWN5-070 | welding end ø 48.3 mm | 10,000 | 600 | 376 × 114.3 mm | 4.3 kg | PFN5-070V |
| WFIWN5-094 | welding end ø 60.3 mm | 15,000 | 900 | 457 × 114.3 mm | 4.8 kg | PFN5-094V |
| WFIWN5-150 | welding end ø 60.3 mm | 21,000 | 1,260 | 583 × 114.3 mm | 5.3 kg | PFN5-150V |
| WFIWN5-175 | welding end ø 76.1 mm | 28,000 | 1,680 | 740 × 139.7 mm | 9 kg | PFN5-175V |
| WFIWN5-200 | welding end ø 88.9 mm | 40,000 | 2,400 | 1,004 × 139.7 mm | 10.8 kg | PFN5-200V |
| WFIWN5-240 | welding end ø 88.9 mm | 60,000 | 3,600 | 1,029 × 168.3 mm | 16.2 kg | PFN5-240V |
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 basic filter is enough where the main concern is solid contaminants and oil in the air is not a problem. It most often serves as a pre-filter before finer stages, which then last longer. 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
After the WFIWN25 coarse filter or the WFIWI20 sintered pre-filter, or directly at the start of the filtration, before the WFIWP fibre pre-filter, the WFIWI1 sintered pre-filter or the WFIWM 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.
| WFIWN5 filter flow in l/min by pressure | ||||
|---|---|---|---|---|
| Size (connection) | 4 bar | 7 bar | 10 bar | 14 bar |
| 005 (welding end ø 17.2 mm) | 788 | 1,250 | 1,725 | 2,350 |
| 010 (welding end ø 21.3 mm) | 1,575 | 2,500 | 3,450 | 4,700 |
| 018 (welding end ø 26.9 mm) | 2,363 | 3,750 | 5,175 | 7,050 |
| 030 (welding end ø 33.7 mm) | 3,308 | 5,250 | 7,245 | 9,870 |
| 047 (welding end ø 42.4 mm) | 4,410 | 7,000 | 9,660 | 13,160 |
| 070 (welding end ø 48.3 mm) | 6,300 | 10,000 | 13,800 | 18,800 |
| 094 (welding end ø 60.3 mm) | 9,450 | 15,000 | 20,700 | 28,200 |
| 150 (welding end ø 60.3 mm) | 13,230 | 21,000 | 28,980 | 39,480 |
| 175 (welding end ø 76.1 mm) | 17,640 | 28,000 | 38,640 | 52,640 |
| 200 (welding end ø 88.9 mm) | 25,200 | 40,000 | 55,200 | 75,200 |
| 240 (welding end ø 88.9 mm) | 37,800 | 60,000 | 82,800 | 112,800 |
Element, condensate drainage and maintenance
A PF range element is fitted in the housing — for example, the PFN5-010V for the WFIWN5-010. The same element also fits the PFN5-010, HPFN5-010, WFITN5-010, WFIFN5-010 and WHFITN5-010. Element working temperature +1.5 to +150 °C.
The filter is supplied with an element, without a condensate drain. For WFIW filters, the manufacturer offers the AOK20SS stainless steel float drain up to 20 bar and +65 °C and, for the head, the MDHI 50-K differential pressure gauge. The drain outlet in the bottom has a G 1/2" thread.
Replace the element at least once every 12 months. Once a year, also check the housing for visible damage.
Accessories for WFIWN5 filters
MDHI 50-K gauge
Differential pressure gauge with connecting tubes; it shows how clogged the element is.
The same stage in other ranges
Stage N5 also comes in the PFN5 filters up to 14 bar, HPFN5 filters up to 50 bar, WFITN5 filters up to 14 bar, WFIFN5 filters up to 14 bar and WHFITN5 filters up to 50 bar. The elements are the same for all ranges.
Ventilek’s tip
A mesh is enough for contaminants. When the air does not have to be oil-free, the N5 stainless steel mesh is enough. For oil aerosol, add the fine pre-filter M.
- What filtration rating does the WFIWN5 basic filter have?
- The mesh traps particles larger than 5 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.
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With a ø 17.2 mm pipe connection and a flow of 1,250 l/min at 7 bar, the WFIWN5-005 basic filter traps solid contaminants larger than 5 µm. Working pressure up to 14 bar, welded...
With a ø 21.3 mm pipe connection and a flow of 2,500 l/min at 7 bar, the WFIWN5-010 basic filter traps solid contaminants larger than 5 µm. Working pressure up to 14 bar, welded...
With a ø 26.9 mm pipe connection and a flow of 3,750 l/min at 7 bar, the WFIWN5-018 basic filter traps solid contaminants larger than 5 µm. Working pressure up to 14 bar, welded...
With a ø 33.7 mm pipe connection and a flow of 5,250 l/min at 7 bar, the WFIWN5-030 basic filter traps solid contaminants larger than 5 µm. Working pressure up to 14 bar, welded...
With a ø 42.4 mm pipe connection and a flow of 7,000 l/min at 7 bar, the WFIWN5-047 basic filter traps solid contaminants larger than 5 µm. Working pressure up to 14 bar, welded...
With a ø 48.3 mm pipe connection and a flow of 10,000 l/min at 7 bar, the WFIWN5-070 basic filter traps solid contaminants larger than 5 µm. Working pressure up to 14 bar,...
With a ø 60.3 mm pipe connection and a flow of 15,000 l/min at 7 bar, the WFIWN5-094 basic filter traps solid contaminants larger than 5 µm. Working pressure up to 14 bar,...
With a ø 60.3 mm pipe connection and a flow of 21,000 l/min at 7 bar, the WFIWN5-150 basic filter traps solid contaminants larger than 5 µm. Working pressure up to 14 bar,...
With a ø 76.1 mm pipe connection and a flow of 28,000 l/min at 7 bar, the WFIWN5-175 basic filter traps solid contaminants larger than 5 µm. Working pressure up to 14 bar,...
With a ø 88.9 mm pipe connection and a flow of 40,000 l/min at 7 bar, the WFIWN5-200 basic filter traps solid contaminants larger than 5 µm. Working pressure up to 14 bar,...
With a ø 88.9 mm pipe connection and a flow of 60,000 l/min at 7 bar, the WFIWN5-240 basic filter traps solid contaminants larger than 5 µm. Working pressure up to 14 bar,...