DN65 Self-Cleaning Wedge Wire Filter – Up to 25 m³/h
The FSC-110 is a DN65 industrial self-cleaning filter for continuous liquid filtration with a reference flow capacity of up to approximately 25 m³/h. The system combines a reusable stainless-steel wedge wire filter element with mechanical scraper cleaning to remove suspended solids without routine replacement of disposable filter bags or cartridges.
With DN65 PN16 flanged inlet and outlet connections and approximately 695 cm² of filtration area, the FSC-110 provides an effective intermediate solution for industrial processes requiring more capacity than a DN50 filter while remaining more compact than DN80 and DN100 systems.
Flow reference: the maximum flow of approximately 25 m³/h is specified for water at approximately 100 µm. Actual capacity depends on viscosity, solids loading, filtration rating, pressure drop and other process conditions.
DN65 FSC-110 technical specifications
| Filter type | Automatic scraper-type self-cleaning wedge wire filter |
|---|---|
| Inlet connection | DN65 PN16 flange |
| Outlet connection | DN65 PN16 flange |
| Solids discharge | 2" BSPP internal thread |
| Vent connection | 1" BSPP internal thread |
| Maximum reference flow | Approx. 25 m³/h at 100 µm with water |
| Available filtration ratings | 25–3000 µm |
| Operating pressure | 0–10 bar standard; higher-pressure configurations up to 16 bar available on request |
| Operating temperature | +10 °C to +80 °C standard |
| Filter surface area | Approx. 695 cm² |
| Internal housing volume | Approx. 12.5 litres |
| Filter housing | Stainless steel 1.4404 / 1.4571 |
| Internal components | Stainless steel 1.4404 |
| Scraper blade | Stainless steel 1.4310 |
| Drive | Industrial worm gear motor |
| Electrical supply | 400 V standard |
| Protection class | IP65 |
| Differential-pressure connections | 2 × 1/4" BSPP internal-thread connections |
| Pressure equipment | PED 2014/68/EU, Category I, Module A |
| Manufacturing | Manufactured in the European Union |
How does the DN65 self-cleaning filter work?
Process liquid enters the filter housing through the DN65 inlet and reaches the outside of the cylindrical wedge wire filter element. The liquid passes through the precision slots from outside to inside, while suspended particles are retained on the external surface.
The geared motor rotates the cylindrical filter element while the scraper remains in contact with its surface. This mechanically removes the accumulated filter cake and prevents excessive solids build-up on the available filtration area.
Removed solids fall into the lower section of the housing and can then be discharged through the 2-inch drain connection using internal system pressure. This allows screen cleaning while the main filtration process continues.
When should a DN65 self-cleaning filter be considered?
A DN65 self-cleaning filter is particularly relevant for industrial process lines where a DN50 system provides insufficient capacity but a DN80 or DN100 installation would be unnecessarily large.
With approximately 695 cm² of filtration surface and a reference flow of up to 25 m³/h, the FSC-110 is positioned between the FSC-70 DN50 and FSC-175 DN80 within the self-cleaning filter range.
- DN65 industrial process piping
- Reference flows up to approximately 25 m³/h
- Continuous industrial liquid filtration
- Processes with moderate to high solids loading
- Viscous or difficult-to-backwash process liquids
- Applications where frequent filter-bag or cartridge replacement is undesirable
25 to 3000 micron DN65 filtration
The FSC-110 can be configured with stainless-steel wedge wire filter elements between approximately 25 and 3000 µm.
- 25 µm
- 50 µm
- 100 µm
- 250 µm
- 500 µm
- 1000 µm
- 3000 µm
The selected filtration rating has a direct effect on hydraulic capacity and cleaning frequency. A fine 25 or 50 µm application can therefore require different sizing from a DN65 system operating at 100, 250 or 500 µm.
Stainless-steel construction and sealing options
The DN65 FSC-110 is constructed for demanding industrial liquid service using corrosion-resistant stainless-steel components.
- Filter housing: stainless steel 1.4404 / 1.4571
- Wedge wire filter element and internal components: stainless steel 1.4404
- Scraper blade: stainless steel 1.4310
- Industrial worm gear motor drive
- Seal materials selected according to chemical compatibility
- EPDM, FKM/Viton and PTFE configurations available depending on application
The selected sealing and material configuration should be verified against the chemical composition of the process liquid, temperature and operating pressure.
Industrial DN65 filter design
The FSC-110 combines a cylindrical wedge wire element with a mechanically driven scraper system and an integrated solids collection section. Its 695 cm² filtration area provides increased capacity compared with smaller DN50 configurations.
- DN65 PN16 flanged inlet and outlet
- Approximately 695 cm² filtration surface
- Motor-driven mechanical scraper cleaning
- External-to-internal liquid flow
- Integrated sediment section
- 2-inch solids discharge connection
- Differential-pressure measurement connections
- Optional automatic cleaning and discharge control
Manual or automatic solids discharge
Solids removed from the wedge wire screen settle in the lower section of the filter housing. The discharge method can be selected according to contamination load and process requirements.
- Manual discharge through a drain valve
- Automatic time-controlled discharge
- Automatic control based on differential-pressure monitoring
The available differential-pressure connections can also be used to monitor screen loading and integrate the filter into an automated process-control system.
Typical DN65 self-cleaning filter applications
The FSC-110 is suitable for a broad range of industrial liquid-filtration applications where continuous solids removal can reduce maintenance and consumption of disposable filtration media.
- Industrial and process water
- Paints and coatings
- Printing inks
- Adhesives and resins
- Industrial oils and lubricants
- Cooling lubricants and emulsions
- Solvents and chemical process liquids
- Polymer and polyurethane processing
- Protection of pumps, valves and downstream process equipment
Benefits of a DN65 scraper-type self-cleaning filter
- Continuous filtration during screen cleaning
- No routine disposable filter cartridge replacement
- Mechanical removal of contamination from the wedge wire surface
- Approximately 695 cm² reusable filtration area
- Filtration ratings from 25 to 3000 µm
- Robust stainless-steel industrial construction
- Manual or automated solids discharge
- Reduced operator intervention in suitable applications
How to size a DN65 self-cleaning filter
Connection size and nominal flow are only starting points for filter sizing. The complete process conditions should be evaluated before selecting the final FSC-110 configuration.
- Required process flow in m³/h
- DN65 pipeline conditions and available pressure
- Required filtration rating in µm
- Liquid type and viscosity
- Solids concentration
- Particle size, shape and behaviour
- Operating pressure and temperature
- Chemical compatibility
- Required cleaning and discharge frequency
Compare DN65 with other self-cleaning filter sizes
Compare the FSC-110 DN65 with smaller DN50 and larger DN80 or DN100 self-cleaning filters to determine the most suitable filtration area and flow capacity for your process.
DN65 self-cleaning filter FAQ
What flow rate can the DN65 FSC-110 handle?
The FSC-110 has a reference maximum flow of approximately 25 m³/h. This figure is based on water at approximately 100 µm. Actual capacity depends on viscosity, solids loading, filtration rating and other process conditions.
What connections does the FSC-110 use?
The FSC-110 uses DN65 PN16 flanged inlet and outlet connections. The solids discharge connection is a 2-inch BSPP internal thread.
What micron ratings are available for the DN65 filter?
Stainless-steel wedge wire elements are available from approximately 25 to 3000 µm, including common filtration ratings such as 25, 50, 100, 250, 500, 1000 and 3000 µm.
What is the filtration area of the FSC-110?
The FSC-110 provides approximately 695 cm² of reusable wedge wire filtration surface.
Can the DN65 filter clean itself while filtration continues?
Yes. The geared motor rotates the cylindrical filter element against the scraper so deposited solids can be removed while the main filtration process continues.
What pressure and temperature can the FSC-110 handle?
The standard operating range is 0 to 10 bar and +10 to +80 °C. Higher-pressure configurations up to 16 bar may be available on request.
Is the FSC-110 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.
Should I choose a DN50, DN65 or DN80 self-cleaning filter?
The correct size depends on more than the pipe connection. As an initial reference, the FSC-70 DN50 has a flow capacity of approximately 13 m³/h, the FSC-110 DN65 approximately 25 m³/h and the FSC-175 DN80 approximately 35 m³/h when filtering water at approximately 100 µm. Viscosity, solids loading and micron rating must also be considered.