Fine pre-filter WFIFM-030 – 14 bar, DN25, 5,250 l/min 0.1 microns · class 2-x-2 · 14 bar
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Product detailed description
The WFIFM-030 fine process pre-filter traps fine solid particles larger than 0.1 µm, water and oil aerosol; residual oil is below 0.1 mg/m³. It has a DN25 flange, a flow of 5,250 l/min at 7 bar and a working pressure of up to 14 bar.
It belongs to the WFIF process filters, among the WFIFM fine pre-filters: the housing is the same for all stages, only the element differs.
Specifications
| Parameter | Value |
|---|---|
| Connection | DN25 flange |
| Flow at 7 bar | 5,250 l/min (315 Nm³/h) |
| Working pressure | 14 bar |
| Element temperature | +1.5 to +120 °C |
| Filtration rating | 0.1 µm |
| ISO 8573-1 class | 2-x-2 |
| Residual oil | < 0.1 mg/m³ |
| Element replacement | at least once every 12 months |
| Element | PFM-030V |
| Element material | borosilicate microfibres |
| Element design | pleated |
| Housing | welded stainless steel 1.4404 |
| Height A | 279 mm |
| Length across the flanges B | 216 mm |
| Housing diameter C | 88.9 mm |
| Weight | 5.7 kg |
| Condensate drain outlet E | G 1/2" thread in the bottom |
| Condensate drain | ordered separately |
Housing and dimensions

The welded housing is made of stainless steel 1.4404, or 1.4301 on request, with flanges according to EN 1092-1/11 PN16 (ANSI B16.5 WN Class 150 on request) and FKM seals. It withstands −20 to +150 °C; the actual limit depends on the seals and the element.
According to the manufacturer: height A 279 mm, length across the flanges B 216 mm, housing diameter C 88.9 mm. Weight 5.7 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 | 14 |
|---|---|---|---|---|
| Flow (l/min) | 3,308 | 5,250 | 7,245 | 9,870 |
Element and accessories
Where to place it

It goes after the WFIFI1 sintered pre-filter or a mesh; it is the finest stage of the WFIF range.
You will find other sizes among the filters of the same stage.
Additional parameters
| Category: | WFIFM stainless fine pre-filters for particles and oil up to 14 bar |
|---|---|
| Version: | Prefilter |
| Pressure: | 14 bar |
| Connecting: | flange DN25 |
| Dimensions: | 279 × 216 × 88.9 mm |
| Filtration: | 0.1 µm |
| Filter insert: | PFM-030V |
| Material: | Stainless steel |
| Condensate discharge: | Without drain |
| Number of inserts: | 1 |
| Working temperature: | +1.5 / +120 °C |
| Flow: | 5,250 l/min |
| Residual oil: | <0,1 mg/m³ |
| Quality class - oils: | 2 |
| Quality class - solid impurities: | 2 |
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Product rating
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