SF sterile stainless steel filters up to 10 bar, DN10 to DN100
SF sterile filters from the manufacturer Omega Air clean compressed air, process air and technical gases to a sterile level: the wrapped borosilicate microfibre element traps submicron particles down to 0.01 µm, including microorganisms (bacteria); solid particle class 1 according to ISO 8573-1. In the e-shop, they have the code SFS.
The range has 12 sizes from DN10 to DN100 and flows of 1,250 to 112,000 l/min at 7 bar. It is one of the sterile stainless steel filters.
SF filters by size
The size determines the connection and the flow. The code leads to the product page of the filter and its spare element.
| SFS 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 |
| SFS-006 | DN10 | 1,250 | 75 | 220 × 76.1 mm | 1.6 kg | SFS-006V |
| SFS-009 | DN10 | 1,750 | 105 | 248 × 76.1 mm | 1.6 kg | SFS-009V |
| SFS-012 | DN15 | 2,500 | 150 | 256 × 76.1 mm | 1.8 kg | SFS-012V |
| SFS-018 | DN15 | 3,750 | 225 | 288 × 76.1 mm | 1.8 kg | SFS-018V |
| SFS-032 | DN25 | 5,250 | 315 | 315 × 114.3 mm | 3.1 kg | SFS-032V |
| SFS-048 | DN32 | 10,000 | 600 | 368 × 114.3 mm | 3.4 kg | SFS-048V |
| SFS-072 | DN40 | 15,000 | 900 | 449 × 114.3 mm | 3.6 kg | SFS-072V |
| SFS-108 | DN50 | 21,000 | 1,260 | 591 × 114.3 mm | 4.9 kg | SFS-108V |
| SFS-144 | DN65 | 28,000 | 1,680 | 741 × 139.7 mm | 8.4 kg | SFS-144V |
| SFS-192 | DN80 | 40,000 | 2,400 | 1,014 × 139.7 mm | 10.2 kg | SFS-192V |
| SFS-432 | DN100 | 84,000 | 5,040 | 1,005 × 219.1 mm | 44 kg | 3× SFS-144V |
| SFS-576 | DN100 | 112,000 | 6,720 | 1,266 × 219.1 mm | 45 kg | 3× SFS-192V |
The flows apply to a pressure of 7 bar and a temperature of +20 °C. Sizes 432 and 576 with a DN100 flange have three elements.
Spare sterile elements
For nine sizes, the same sterile element also has a PFSF code for process filters — both product pages are linked.
| SFS spare elements | ||
|---|---|---|
| Element | For filters | Same element |
| SFS-006V | SFS-006 | PFSF-005V |
| SFS-009V | SFS-009 | PFSF-007V |
| SFS-012V | SFS-012 | PFSF-010V |
| SFS-018V | SFS-018 | PFSF-018V |
| SFS-032V | SFS-032 | – |
| SFS-048V | SFS-048 | PFSF-070V |
| SFS-072V | SFS-072 | PFSF-094V |
| SFS-108V | SFS-108 | PFSF-150V |
| SFS-144V | SFS-144, 3× SFS-432 | PFSF-175V |
| SFS-192V | SFS-192, 3× SFS-576 | PFSF-200V |
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When to use a sterile filter
The manufacturer designs the SF range for packaging lines, biotechnology, breweries, dairies, fermentation processes, food and beverages, pharmaceuticals, hospitals and the chemical industry — wherever compressed air comes into contact with the product and must not carry microorganisms.
The sterile filter goes at the end of the filtration, after the fine pre-filter and the microfilter. Filters do not deal with humidity — water vapour is removed by a compressed air dryer.
Sizes and dimensions
The size determines the connection, the flow and the housing dimensions. Sizes 006 to 192 have one element and DN10 to DN80 connections for tubes with a diameter of 17.2 to 88.9 mm, up to DN50 with a clamp connection to ISO. Sizes 432 and 576 have a DN100 flange to EN and three elements.
Height A is 220 to 1,266 mm, the weight 1.6 to 45 kg.
| SF filter sizes | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Connection | Pressure | Nm³/h at 7 bar | l/min at 7 bar | A | B | C | D | Weight | Elements |
| 006 | DN10, tube ø 17.2 mm | 10 bar | 75 | 1,250 | 220 mm | 130 mm | 76.1 mm | 74 mm | 1.6 kg | 1 |
| 009 | DN10, tube ø 17.2 mm | 10 bar | 105 | 1,750 | 248 mm | 130 mm | 76.1 mm | 74 mm | 1.6 kg | 1 |
| 012 | DN15, tube ø 21.3 mm | 10 bar | 150 | 2,500 | 256 mm | 128 mm | 76.1 mm | 78 mm | 1.8 kg | 1 |
| 018 | DN15, tube ø 21.3 mm | 10 bar | 225 | 3,750 | 288 mm | 128 mm | 76.1 mm | 78 mm | 1.8 kg | 1 |
| 032 | DN25, tube ø 35.7 mm | 10 bar | 315 | 5,250 | 315 mm | 180 mm | 114.3 mm | 99 mm | 3.1 kg | 1 |
| 048 | DN32, tube ø 42.4 mm | 10 bar | 600 | 10,000 | 368 mm | 181 mm | 114.3 mm | 90 mm | 3.4 kg | 1 |
| 072 | DN40, tube ø 48.3 mm | 10 bar | 900 | 15,000 | 449 mm | 174 mm | 114.3 mm | 65 mm | 3.6 kg | 1 |
| 108 | DN50, tube ø 60.3 mm | 10 bar | 1,260 | 21,000 | 591 mm | 188 mm | 114.3 mm | 110 mm | 4.9 kg | 1 |
| 144 | DN65, tube ø 76.1 mm | 10 bar | 1,680 | 28,000 | 741 mm | 205 mm | 139.7 mm | 136 mm | 8.4 kg | 1 |
| 192 | DN80, tube ø 88.9 mm | 10 bar | 2,400 | 40,000 | 1,014 mm | 203 mm | 139.7 mm | 136 mm | 10.2 kg | 1 |
| 432 | DN100, EN flange | 10 bar | 5,040 | 84,000 | 1,005 mm | 410 mm | 219.1 mm | 183 mm | 44 kg | 3× |
| 576 | DN100, EN flange | 10 bar | 6,720 | 112,000 | 1,266 mm | 410 mm | 219.1 mm | 183 mm | 45 kg | 3× |
A height, B width across the connections, C housing diameter, D connection axis height. Dimensions and weights according to the manufacturer.
Flow at a different pressure
The 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: 1.38 at 10 bar, 0.63 at 4 bar.
| SFS filter flow in l/min by pressure | |||
|---|---|---|---|
| Size (connection) | 4 bar | 7 bar | 10 bar |
| 006 (DN10) | 788 | 1,250 | 1,725 |
| 009 (DN10) | 1,103 | 1,750 | 2,415 |
| 012 (DN15) | 1,575 | 2,500 | 3,450 |
| 018 (DN15) | 2,363 | 3,750 | 5,175 |
| 032 (DN25) | 3,308 | 5,250 | 7,245 |
| 048 (DN32) | 6,300 | 10,000 | 13,800 |
| 072 (DN40) | 9,450 | 15,000 | 20,700 |
| 108 (DN50) | 13,230 | 21,000 | 28,980 |
| 144 (DN65) | 17,640 | 28,000 | 38,640 |
| 192 (DN80) | 25,200 | 40,000 | 55,200 |
| 432 (DN100) | 52,920 | 84,000 | 115,920 |
| 576 (DN100) | 70,560 | 112,000 | 154,560 |
Housing and connection
Housing: stainless steel 1.4404, outer surface polished to Ra 0.8; the housing is also designed for sterilisation. According to the manufacturer, the sterile element withstands a large number of sterilisation cycles and works at −20 to +150 °C.
At the top and at the bottom there is an E thread for venting and draining: G 1/8" for sizes 006 to 018, G 1/4" for 032 to 192 and G 1/2" for the flanged sizes.
Related filters
Element replacement
Replace the element at least once every 12 months. Once a year, also check the housing for visible damage.
The filter is supplied with an element, without a condensate drain.
Ventilek’s tip
A fine pre-filter and a microfilter before the sterile filter. They trap the oil and most of the particles, so the sterile element works with clean air and lasts longer.
- What pressure are SF filters rated for?
- Up to 10 bar in all sizes. The sterile element works at −20 to +150 °C.
- What does the sterile element trap?
- Submicron particles down to 0.01 µm, including microorganisms (bacteria); solid particle class 1 according to ISO 8573-1. It does not deal with oil and water vapour — a fine pre-filter, a microfilter and a dryer go before it for those.
- Can the housing be sterilised?
- Yes, the housing of the SF filter is also designed for sterilisation, and according to the manufacturer the sterile element withstands a large number of sterilisation cycles.
- How do I choose the size?
- By the flow at your pressure. The flows apply to 7 bar; at a different pressure, multiply them by the correction factor — at 10 bar it is 1.38.
- Do SFS elements have another code?
- For nine sizes, yes — the same sterile element also has a PFSF code for process filters, for example SFS-012V and PFSF-010V. The table of elements shows both.
- How often should the elements be replaced?
- At least once every 12 months. Once a year, also check the housing for visible damage.
Product sorting
List of products
With a DN15 connection and a flow of 3,750 l/min at 7 bar, the SFS-018 sterile filter traps submicron particles down to 0.01 µm, including microorganisms (bacteria). Working...
Spare sterile element SFS-006V for the SFS-006 filter — wrapped borosilicate microfibres, 0.01 µm. Replace it at least once every 12 months.
Spare sterile element SFS-009V for the SFS-009 filter — wrapped borosilicate microfibres, 0.01 µm. Replace it at least once every 12 months.
Spare sterile element SFS-012V for the SFS-012 filter — wrapped borosilicate microfibres, 0.01 µm. Replace it at least once every 12 months.
Spare sterile element SFS-018V for the SFS-018 filter — wrapped borosilicate microfibres, 0.01 µm. Replace it at least once every 12 months.
Spare sterile element SFS-032V for the SFS-032 filter — wrapped borosilicate microfibres, 0.01 µm. Replace it at least once every 12 months.
Spare sterile element SFS-048V for the SFS-048 filter — wrapped borosilicate microfibres, 0.01 µm. Replace it at least once every 12 months.
Spare sterile element SFS-072V for the SFS-072 filter — wrapped borosilicate microfibres, 0.01 µm. Replace it at least once every 12 months.
Spare sterile element SFS-108V for the SFS-108 filter — wrapped borosilicate microfibres, 0.01 µm. Replace it at least once every 12 months.
Spare sterile element SFS-144V for the SFS-144 and SFS-432 filters — wrapped borosilicate microfibres, 0.01 µm. Replace it at least once every 12 months.
Spare sterile element SFS-192V for the SFS-192 and SFS-576 filters — wrapped borosilicate microfibres, 0.01 µm. Replace it at least once every 12 months.
With a DN10 connection and a flow of 1,250 l/min at 7 bar, the SFS-006 sterile filter traps submicron particles down to 0.01 µm, including microorganisms (bacteria). Working...
With a DN10 connection and a flow of 1,750 l/min at 7 bar, the SFS-009 sterile filter traps submicron particles down to 0.01 µm, including microorganisms (bacteria). Working...
With a DN15 connection and a flow of 2,500 l/min at 7 bar, the SFS-012 sterile filter traps submicron particles down to 0.01 µm, including microorganisms (bacteria). Working...
With a DN25 connection and a flow of 5,250 l/min at 7 bar, the SFS-032 sterile filter traps submicron particles down to 0.01 µm, including microorganisms (bacteria). Working...
With a DN32 connection and a flow of 10,000 l/min at 7 bar, the SFS-048 sterile filter traps submicron particles down to 0.01 µm, including microorganisms (bacteria). Working...
With a DN40 connection and a flow of 15,000 l/min at 7 bar, the SFS-072 sterile filter traps submicron particles down to 0.01 µm, including microorganisms (bacteria). Working...
With a DN50 connection and a flow of 21,000 l/min at 7 bar, the SFS-108 sterile filter traps submicron particles down to 0.01 µm, including microorganisms (bacteria). Working...
With a DN65 connection and a flow of 28,000 l/min at 7 bar, the SFS-144 sterile filter traps submicron particles down to 0.01 µm, including microorganisms (bacteria). Working...
With a DN80 connection and a flow of 40,000 l/min at 7 bar, the SFS-192 sterile filter traps submicron particles down to 0.01 µm, including microorganisms (bacteria). Working...
With a DN100 connection and a flow of 84,000 l/min at 7 bar, the SFS-432 sterile filter traps submicron particles down to 0.01 µm, including microorganisms (bacteria). Working...
With a DN100 connection and a flow of 112,000 l/min at 7 bar, the SFS-576 sterile filter traps submicron particles down to 0.01 µm, including microorganisms (bacteria). Working...