DN100 Self-Cleaning Wedge Wire Filter – Up to 70 m³/h
The FSC-325 is a DN100 industrial self-cleaning filter designed for high-capacity liquid filtration with reference flow rates of up to approximately 70 m³/h. It combines a stainless-steel wedge wire filter element with mechanical scraper cleaning for continuous removal of suspended solids without routine replacement of disposable filter bags or cartridges.
The DN100 inlet and outlet connections make this model suitable for larger industrial process lines where continuous filtration, high filtration area and low-maintenance solids removal are required. Typical applications include industrial water, paints and coatings, adhesives, resins, oils, lubricants, solvents, emulsions and other process liquids.
Flow reference: the maximum flow of approximately 70 m³/h is specified for water at a filtration rating of approximately 100 µm. Actual capacity depends on viscosity, solids loading, filtration rating, temperature and process conditions.
DN100 FSC-325 technical specifications
| Filter type | Automatic scraper-type self-cleaning wedge wire filter |
|---|---|
| Inlet connection | DN100 PN16 flange |
| Outlet connection | DN100 PN16 flange |
| Solids discharge connection | DN80 PN16 flange |
| Maximum reference flow | Approx. 70 m³/h at 100 µm with water |
| Available filtration ratings | 25–3000 µm |
| Operating pressure | 0–10 bar standard; up to 16 bar available on request |
| Operating temperature | +10 °C to +80 °C standard |
| Filter surface area | Approx. 1932 cm² |
| Internal housing volume | Approx. 50 litres |
| Filter housing | Stainless steel 1.4404 / 1.4571 |
| Wedge wire filter element | Stainless steel 1.4404 |
| Scraper blade | Stainless steel 1.4310 |
| Drive | Industrial worm gear motor |
| Electrical supply | 400 V / 50 Hz standard |
| Protection class | IP65 |
| Pressure equipment | PED 2014/68/EU, Category I, Module A |
| Manufacturing | Manufactured in the European Union |
How does the DN100 self-cleaning filter work?
Process liquid enters the DN100 filter housing and reaches the outside of the cylindrical wedge wire element. The liquid passes through the precision slots from outside to inside, while suspended solids are retained on the external filter surface.
During the cleaning cycle, the geared motor rotates the cylindrical filter element against the scraper blade. Deposited solids are mechanically removed from the screen and fall into the lower sediment chamber.
The accumulated solids are then discharged from the DN80 drain connection using the pressure available inside the filter housing. This allows the filter surface to be cleaned while the main filtration process continues.
When should a DN100 self-cleaning filter be considered?
A DN100 self-cleaning filter is generally considered for higher-flow industrial pipelines where a smaller DN50, DN65 or DN80 filter does not provide sufficient filtration area or hydraulic capacity.
The FSC-325 provides approximately 1932 cm² of filtration area and a reference capacity of up to 70 m³/h. Final sizing should always consider the actual process liquid rather than connection size or flow alone.
- Higher industrial flow requirements
- DN100 process piping
- Continuous filtration processes
- High suspended-solids loading
- Viscous or difficult-to-backwash liquids
- Applications where frequent filter-bag replacement is undesirable
25 to 3000 micron wedge wire filtration
The DN100 FSC-325 can be configured with wedge wire filtration ratings between approximately 25 and 3000 µm. Common selections include:
- 25 µm
- 50 µm
- 100 µm
- 250 µm
- 500 µm
- 1000 µm
- 3000 µm
Finer filtration ratings generally reduce hydraulic capacity and may increase the required cleaning frequency. Therefore a DN100 connection does not automatically mean that 70 m³/h can be achieved under every process condition.
Stainless-steel construction and seal options
The FSC-325 is designed for industrial liquid filtration using corrosion-resistant stainless-steel components.
- Filter housing: stainless steel 1.4404 / 1.4571
- Wedge wire filter element: stainless steel 1.4404
- Scraper blade: stainless steel 1.4310
- Seal and bearing components selected according to the process fluid
- EPDM, FKM/Viton and PTFE sealing configurations available depending on application
Chemical compatibility, operating temperature and process requirements should be checked when selecting the final sealing configuration.
High-flow design with swing-arm maintenance access
The DN100 FSC-325 has a substantially larger filtration surface than the smaller FSC models and includes a swing-arm arrangement for maintenance access.
After releasing the cover fixings, the cover and geared motor assembly can be moved aside using the swing arm, allowing access to the scraper basket assembly and the internal housing.
- 1932 cm² wedge wire filtration surface
- DN100 inlet and outlet flanges
- DN80 solids discharge flange
- Motor-driven mechanical scraper cleaning
- External-to-internal filtration flow
- Tool-efficient access to the scraper basket assembly
- Optional automated solids discharge control
Manual or automatic solids discharge
Solids removed from the wedge wire element accumulate in the lower part of the filter housing. Discharge can be configured according to the process requirements.
- Manual discharge using a valve
- Automatic time-controlled discharge
- Automatic discharge controlled by differential-pressure monitoring
Typical DN100 self-cleaning filter applications
The FSC-325 is intended for demanding industrial liquid-filtration duties where continuous surface cleaning can reduce filter-media consumption and maintenance.
- Industrial and process water
- Paints, coatings and printing inks
- Adhesives and resins
- Oils and lubricants
- Cooling lubricants
- Solvents and chemical process liquids
- Polyurethane and emulsions
- Selected viscous food-process liquids
How to size a DN100 self-cleaning filter
A DN100 connection size is only one part of filter selection. For reliable sizing, the following information should be evaluated:
- Required flow rate in m³/h
- Pipe connection and available pressure
- Required filtration rating in µm
- Liquid viscosity
- Type and concentration of suspended solids
- Particle size and shape
- Operating temperature
- Chemical compatibility
- Required cleaning and discharge frequency
Compare this DN100 filter with the complete FSC range
If DN100 or 70 m³/h is larger than your process requires, compare the FSC-325 with DN50, DN65, DN80 and smaller self-cleaning filter configurations.
DN100 self-cleaning filter FAQ
What flow rate can the DN100 FSC-325 handle?
The FSC-325 has a maximum reference flow of approximately 70 m³/h. This value is based on water at approximately 100 µm filtration. Actual capacity depends on viscosity, solids loading, filtration rating and other process conditions.
What are the inlet and outlet connections?
The FSC-325 uses DN100 PN16 flanged inlet and outlet connections. The solids discharge connection is DN80 PN16.
What micron ratings are available for the DN100 filter?
Wedge wire filtration ratings from approximately 25 to 3000 µm are available, including common ratings such as 25, 50, 100, 250, 500, 1000 and 3000 µm.
Can the FSC-325 filter continuously while cleaning?
Yes. The wedge wire element is mechanically scraped during operation, allowing filtration to continue while deposited solids are removed from the filter surface.
What pressure can the DN100 self-cleaning filter handle?
Standard operating pressure is 0 to 10 bar. Configurations for pressures up to 16 bar may be available on request.
What is the filtration area of the FSC-325?
The FSC-325 provides approximately 1932 cm² of wedge wire filtration surface.
Is the FSC-325 manufactured in the EU?
Yes. The filter is manufactured in the European Union. Pressure-equipment conformity is specified according to PED 2014/68/EU, Category I, Module A.
How do I know whether DN100 is the correct filter size?
Filter sizing should consider flow rate, viscosity, micron rating, solids concentration, particle properties, pressure and temperature. Filtra International can evaluate these parameters and recommend the appropriate FSC model.