Welded pre-filter WFITIW20-175 – 14 bar, G 2 1/2", 28,000 l/min 20 micron sintered stainless steel, welded · 14 bar
Code: WFITIW20-175
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Product detailed description
The WFITIW20-175 welded process pre-filter traps solid contaminants larger than 20 µm and protects the finer stages after it. It has a G 2 1/2" connection (female pipe thread), a flow of 28,000 l/min at 7 bar and a working pressure of up to 14 bar.
It belongs to the WFIT process filters, among the WFITIW20 welded pre-filters: the housing is the same for all stages, only the element differs.
Specifications
| Parameter | Value |
|---|---|
| Connection | G 2 1/2" (female pipe thread) |
| Flow at 7 bar | 28,000 l/min (1,680 Nm³/h) |
| Working pressure | 14 bar |
| Element temperature | +1.5 to +150 °C |
| Filtration rating | 20 µm |
| Element replacement | at least once every 12 months |
| Element | PFIW20-175V |
| Element material | sintered stainless steel 1.4404 |
| Element design | sintered, welded |
| Housing | welded stainless steel 1.4404 |
| Height A | 722 mm |
| Width across the connections B | 226 mm |
| Housing diameter C | 139.7 mm |
| Weight | 11.4 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 FKM seals (EPDM or silicone on request) and female pipe threads. It withstands −20 to +150 °C; the actual limit depends on the seals and the element.
Dimensions according to the manufacturer: height A 722 mm, width across the connections B 226 mm, housing diameter C 139.7 mm. Weight 11.4 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) | 17,640 | 28,000 | 38,640 | 52,640 |
Element and accessories
| For this filter: | |
|---|---|
| Spare element | PFIW20-175V |
| Condensate drain (ordered separately) | AOK20SS |
| Differential pressure gauge for the filter head | MDHI50-K |
Where to place it
It goes at the start of the filtration or after the WFITN25 coarse filter, before the WFITN5 basic filter — instead of the WFITI20 sintered pre-filter.
You will find other sizes among the filters of the same stage.
Additional parameters
| Category: | WFITIW20 welded stainless steel pre-filters up to 14 bar |
|---|---|
| Pressure: | 14 bar |
| Connecting: | 2 1/2" |
| Dimensions: | 722 × 226 × 139.7 mm |
| Filtration: | 20 µm |
| Filter insert: | PFIW20-175V |
| Material: | Stainless steel |
| Number of inserts: | 1 |
| Working temperature: | +1.5 / +150 °C |
| Flow: | 28,000 l/min |
| Product type: | Complete filter |
| Filtration stage: | Coarse filter 15–40 µm |
| Connection type: | Female thread |
Product rating
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