Welded pre-filter PFIW1-900 – 10 bar, DN150, 160,000 l/min 1 micron sintered stainless steel, welded · 10 bar
Code: PFIW1-900Related products
Spare element PFIW1-200V for PF, HPF, WFIT, WFIF, WFIW, WHFIT and SPF welded pre-filters of size 200 — sintered stainless steel 1.4404. Replace it at least once every 12 months....
A float condensate drain for filters, pressure vessels and cyclone separators. It works mechanically, without electricity and without setting. Body made of stainless steel.
Spare element PFR-175V for PF, WFIT, WFIF, WFIW and SPF dust filters of size 175 — borosilicate microfibres. Replace it at least once every 12 months. The same element is also...
Spare cyclone element WFC-047V for WFIT, WFIF, WFIW and WHFIT cyclone separators of size 047. It separates condensate droplets from the air and withstands +120 °C.
Spare element PFP-070V for PF, HPF, WFIT, WFIF, WFIW, WHFIT and SPF fibre pre-filters of size 070 — acrylic fibres and cellulose. Replace it at least once every 12 months. The...
Spare element PFP-007V for PF, WFIT and SPF fibre pre-filters of size 007 — acrylic fibres and cellulose. Replace it at least once every 12 months. The same element is also...
Spare element PFR-030V for PF, HPF, WFIT, WFIF, WFIW, WHFIT and SPF dust filters of size 030 — borosilicate microfibres. Replace it at least once every 12 months. The same...
Spare element PFS-094V for PF, HPF, WFIT, WFIF, WFIW, WHFIT and SPF microfilters of size 094 — borosilicate microfibres. Replace it at least once every 12 months. The same...
Spare element PFS-175V for PF, WFIT, WFIF, WFIW and SPF microfilters of size 175 — borosilicate microfibres. Replace it at least once every 12 months. The same element is also...
Spare element PFSF-240V for PF and SPF sterile filters of size 240 — borosilicate microfibres. Replace it at least once every 12 months.
Spare element PFA-018V for PF, HPF, WFIT, WFIF, WFIW, WHFIT and SPF activated carbon filters of size 018 — borosilicate microfibres and activated carbon. Replace it at least...
Spare element PFS-030V for PF, HPF, WFIT, WFIF, WFIW, WHFIT and SPF microfilters of size 030 — borosilicate microfibres. Replace it at least once every 12 months. The same...
Spare element PFS-010V for PF, HPF, WFIT, WFIF, WFIW, WHFIT and SPF microfilters of size 010 — borosilicate microfibres. Replace it at least once every 12 months. The same...
Spare element PFI1-018V for PF, HPF, WFIT, WFIF, WFIW, WHFIT and SPF sintered pre-filters of size 018 — sintered stainless steel 1.4404. Replace it at least once every 12...
Spare element PFS-005V for PF, WFIT, WFIW and SPF microfilters of size 005 — borosilicate microfibres. Replace it at least once every 12 months. The same element is also listed...
Spare element PFI20-070V for PF, HPF, WFIT, WFIF, WFIW, WHFIT and SPF sintered pre-filters of size 070 — sintered stainless steel 1.4404. Replace it at least once every 12...
Product detailed description
The PFIW1-900 welded process pre-filter traps solid particles larger than 1 µm. It has a DN150 flange, a flow of 160,000 l/min at 7 bar and a working pressure of up to 10 bar. It contains 4 PFIW1-200V elements.
It belongs to the PF process filters, among the PFIW1 welded pre-filters: the housing is the same for all stages, only the element differs. The photo shows a PF range filter with a threaded connection.
Specifications
| Parameter | Value |
|---|---|
| Connection | DN150 flange |
| Flow at 7 bar | 160,000 l/min (9,600 Nm³/h) |
| Working pressure | 10 bar |
| Element temperature | +1.5 to +150 °C |
| Filtration rating | 1 µm |
| Element replacement | at least once every 12 months |
| Element | 4× PFIW1-200V |
| Element material | sintered stainless steel 1.4404 |
| Element design | sintered, welded |
| Housing | stainless steel 1.4404 |
| Height A | 1,311 mm |
| Length across the flanges B | 480 mm |
| Housing diameter C | 273 mm |
| Weight | 90 kg |
| Condensate drain outlet E | G 1" thread in the bottom |
| Condensate drain | ordered separately |
Housing and dimensions

The housing is made of stainless steel 1.4404, or 1.4301 on request, with the outer surface polished to Ra 1.6 and EPDM seals (FKM or silicone on request). It withstands −20 to +150 °C; the actual limit depends on the seals and the element.
Dimensions according to the manufacturer: height A 1,311 mm, length across the flanges B 480 mm, housing diameter C 273 mm. Weight 90 kg.
Flow by pressure
The flow applies to a pressure of 7 bar and a temperature of +20 °C. At a different pressure, it is multiplied by the correction factor; at 14 bar it is 1.88:
| Pressure (bar) | 4 | 7 | 10 |
|---|---|---|---|
| Flow (l/min) | 100,800 | 160,000 | 220,800 |
Element and accessories
| For this filter: | |
|---|---|
| Spare element | 4× PFIW1-200V |
| Condensate drain (ordered separately) | AOK20SS |
Where to place it

It goes after the basic mesh or the fibre pre-filter, before the PFM fine pre-filter — instead of the PFI1 sintered pre-filter.
You will find other sizes among the filters of the same stage.
Additional parameters
| Category: | PFIW1 welded stainless steel pre-filters up to 14 bar |
|---|---|
| Pressure: | 10 bars |
| Connecting: | DN150 |
| Dimensions: | 1 311 × 480 × 273 mm |
| Filtration: | 1 µm |
| Filter insert: | PFIW1-200V |
| Material: | Stainless steel |
| Number of inserts: | 4 |
| Working temperature: | +1.5 / +150 °C |
| Flow: | 160,000 l/min |
| Product type: | Complete filter |
| Filtration stage: | Dust filter 1 µm |
| Connection type: | Flange |
With a G 1 1/4" thread and a flow of 6,333 l/min at 7 bar, the IHP4R-030 stainless steel dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up...
With a G 1" thread and a flow of 4,583 l/min at 7 bar, the IHP2R-018 stainless steel dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up to...
With a G 3/8" thread and a flow of 1,167 l/min at 7 bar, the IHP2R-005 stainless steel dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up...
With a G 1" thread and a flow of 4,583 l/min at 7 bar, the IHP1R-018 stainless steel dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up to...
Omega Air AFM-33 fine pre-filter with a 1" thread and a flow of 3,300 l/min at 7 bar, up to 16 bar. The AF series has been replaced by the AAF series; the successor is the...
With a G 1 1/4" thread and a flow of 6,333 l/min at 7 bar, the IHP1R-030 stainless steel dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up...
With a G 1/4" thread and a flow of 667 l/min at 7 bar, the IHP4R-003 stainless steel dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up to...
With a G 3/4" thread and a flow of 3,250 l/min at 7 bar, the IHP2R-010 stainless steel dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up...
Omega Air AFR-33 dust filter with a 1" thread and a flow of 3,300 l/min at 7 bar, up to 16 bar. The AF series has been replaced by the AAF series; the successor is the AAFR-198.
With a G 2" thread and a flow of 11,917 l/min at 7 bar, the IHP1R-094 stainless steel dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up to...
With a G 2" thread and a flow of 11,917 l/min at 7 bar, the IHP4R-094 stainless steel dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up to...
With a G 3/8" thread and a flow of 1,167 l/min at 7 bar, the IHP4R-005 stainless steel dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up...
With a G 1/2" thread and a flow of 2,167 l/min at 7 bar, the IHP4R-007 stainless steel dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up...
With a G 1/2" thread and a flow of 2,167 l/min at 7 bar, the IHP2R-007 stainless steel dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up...
With a G 3/4" thread and a flow of 3,250 l/min at 7 bar, the IHP1R-010 stainless steel dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up...
With a G 1/2" thread and a flow of 2,167 l/min at 7 bar, the IHP1R-007 stainless steel dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up...
Product rating
Be the first who will post an article to this item!
Alfa and Omega from SloveniaIn the Slovenian capital, Ljubljana, there is a company specialized in compressed air treatment, production of industrial filters and filter inserts, separators or special membrane dryers and other products. Omega Air was founded in 1988 as a family business and soon secured a place in the industry. Over the years, Omega Air's workforce has also grown with increasing production and today the company employs more than 250 people. |
![]() |
![]() |
Omega products are used everywhereA wide range of applications is typical for Omega Air products. Its products are used in heavy industry as well as by private entities. Slovenia's footprint is thus noticeable in industrial sectors such as electrical, gastronomy, pharmaceuticals, moto and also in the chemical-industrial sector. However, the company's main product is special filters, which are exported all over the world. |
No greenhorn in the industryOmega Air also boasts several proprietary innovations and patents that originate in the development department. The company has also been awarded several times for its innovative solutions at the International Engineering Fair itself, which is traditionally held in Hannover, Germany. The Omega Air product range is brought to you by our air compressors company below. |
What Omega Air produces:
|

