WFIFR stainless steel dust filters up to 14 bar
The WFIFR 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 WFIFR filter comes in 16 sizes (DN15 to DN200) with flows of 2,500 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 WFIF filters — the housing is the same for all stages, only the element differs.
WFIFR filters by size
The size determines the connection and the flow. Each size has its own PF range spare element.
| WFIFR 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 |
| WFIFR-010 | DN15 flange | 2,500 | 150 | 230 × 76.1 mm | 3.5 kg | PFR-010V |
| WFIFR-018 | DN20 flange | 3,750 | 225 | 263 × 76.1 mm | 4.3 kg | PFR-018V |
| WFIFR-030 | DN25 flange | 5,250 | 315 | 279 × 88.9 mm | 5.7 kg | PFR-030V |
| WFIFR-047 | DN32 flange | 7,000 | 420 | 348 × 88.9 mm | 6.6 kg | PFR-047V |
| WFIFR-070 | DN40 flange | 10,000 | 600 | 391 × 114.3 mm | 8 kg | PFR-070V |
| WFIFR-094 | DN50 flange | 15,000 | 900 | 444 × 114.3 mm | 9.8 kg | PFR-094V |
| WFIFR-150 | DN50 flange | 21,000 | 1,260 | 571 × 114.3 mm | 11 kg | PFR-150V |
| WFIFR-175 | DN65 flange | 28,000 | 1,680 | 752 × 139.7 mm | 14.2 kg | PFR-175V |
| WFIFR-200 | DN80 flange | 40,000 | 2,400 | 978 × 139.7 mm | 21.2 kg | PFR-200V |
| WFIFR-240 | DN80 flange | 60,000 | 3,600 | 1,041 × 168.3 mm | 22.9 kg | PFR-240V |
| WFIFR-450 | DN100 flange | 84,000 | 5,040 | 981 × 219.1 mm | 55 kg | 3× PFR-175V |
| WFIFR-600 | DN100 flange | 112,000 | 6,720 | 1,288 × 219.1 mm | 64 kg | 3× PFR-200V |
| WFIFR-900 | DN150 flange | 160,000 | 9,600 | 1,310 × 273 mm | 87 kg | 4× PFR-200V |
| WFIFR-1200 | DN150 flange | 224,000 | 13,440 | 1,351 × 323.9 mm | 110 kg | 6× PFR-200V |
| WFIFR-1800 | DN200 flange | 288,000 | 17,280 | 1,496 × 406.4 mm | 200 kg | 8× PFR-200V |
| WFIFR-2000 | DN200 flange | 352,000 | 21,120 | 1,496 × 406.4 mm | 200 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 WFIFP fibre pre-filter or the WFIFN5 basic filter, before the WFIFM 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.
| WFIFR filter flow in l/min by pressure | ||||
|---|---|---|---|---|
| Size (connection) | 4 bar | 7 bar | 10 bar | 14 bar |
| 010 (DN15 flange) | 1,575 | 2,500 | 3,450 | 4,700 |
| 018 (DN20 flange) | 2,363 | 3,750 | 5,175 | 7,050 |
| 030 (DN25 flange) | 3,308 | 5,250 | 7,245 | 9,870 |
| 047 (DN32 flange) | 4,410 | 7,000 | 9,660 | 13,160 |
| 070 (DN40 flange) | 6,300 | 10,000 | 13,800 | 18,800 |
| 094 (DN50 flange) | 9,450 | 15,000 | 20,700 | 28,200 |
| 150 (DN50 flange) | 13,230 | 21,000 | 28,980 | 39,480 |
| 175 (DN65 flange) | 17,640 | 28,000 | 38,640 | 52,640 |
| 200 (DN80 flange) | 25,200 | 40,000 | 55,200 | 75,200 |
| 240 (DN80 flange) | 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 WFIFR-010. The same element also fits the PFR-010, HPFR-010, WFITR-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 WFIF 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, G 1" for sizes from DN100.
Replace the element at least once every 12 months. Once a year, also check the housing for visible damage.
Accessories for WFIFR 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 R also comes in the PFR filters up to 14 bar, HPFR filters up to 50 bar, WFITR 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 WFIFR 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 DN15 connection and a flow of 2,500 l/min at 7 bar, the WFIFR-010 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a DN20 connection and a flow of 3,750 l/min at 7 bar, the WFIFR-018 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a DN25 connection and a flow of 5,250 l/min at 7 bar, the WFIFR-030 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a DN32 connection and a flow of 7,000 l/min at 7 bar, the WFIFR-047 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a DN40 connection and a flow of 10,000 l/min at 7 bar, the WFIFR-070 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a DN50 connection and a flow of 15,000 l/min at 7 bar, the WFIFR-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 WFIFR-1200 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a DN50 connection and a flow of 21,000 l/min at 7 bar, the WFIFR-150 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a DN65 connection and a flow of 28,000 l/min at 7 bar, the WFIFR-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 WFIFR-1800 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a DN80 connection and a flow of 40,000 l/min at 7 bar, the WFIFR-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 WFIFR-2000 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...
With a DN80 connection and a flow of 60,000 l/min at 7 bar, the WFIFR-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 WFIFR-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 WFIFR-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 WFIFR-900 dust filter traps solid particles and dust larger than 1 µm, solid particle class 3 according to ISO...