DN50 Self-Cleaning Wedge Wire Filter – Up to 13 m³/h
The FSC-70 is a DN50 industrial self-cleaning filter for continuous liquid filtration with a reference flow capacity of up to approximately 13 m³/h. A reusable stainless-steel wedge wire filter element is mechanically cleaned by a motor-driven scraper system, reducing the need for disposable filter bags and cartridges.
With DN50 PN16 flanged inlet and outlet connections and approximately 415 cm² of filtration surface, the FSC-70 is designed for medium-capacity industrial processes involving water, paints, coatings, adhesives, resins, oils, lubricants, solvents, emulsions and other process liquids.
Flow reference: approximately 13 m³/h is specified for water at approximately 100 µm. Actual capacity depends on viscosity, solids concentration, filtration rating, pressure drop and other process conditions.
DN50 FSC-70 technical specifications
| Filter type | Automatic scraper-type self-cleaning wedge wire filter |
|---|---|
| Inlet connection | DN50 PN16 flange |
| Outlet connection | DN50 PN16 flange |
| Maximum reference flow | Approx. 13 m³/h at 100 µm with water |
| Available filtration ratings | 25–3000 µm |
| Filter surface area | Approx. 415 cm² |
| Operating pressure | 0–10 bar standard; up to 16 bar available on request |
| Operating temperature | +10 °C to +80 °C standard |
| 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; explosion-protected configurations may be available on request |
| Differential-pressure monitoring | Connections available for differential-pressure measurement |
| Pressure equipment | PED 2014/68/EU, Category I, Module A |
| Manufacturing | Manufactured in the European Union |
How does the DN50 self-cleaning filter work?
Process liquid enters the DN50 filter housing and reaches the outside of the cylindrical wedge wire filter element. Liquid passes through the precision slots from outside to inside, while suspended particles are retained on the external surface of the element.
The worm gear motor rotates the cylindrical wedge wire element while the scraper remains in contact with the filter surface. Deposited solids are mechanically scraped away and fall into the lower solids-collection section.
Collected contamination can then be discharged from the filter using the internal system pressure. Cleaning of the wedge wire surface takes place without routinely interrupting the main filtration process.
When should a DN50 self-cleaning filter be considered?
A DN50 self-cleaning filter is a useful starting point for industrial applications requiring more capacity than compact DN25–DN40 units while not requiring the larger filtration area of a DN65, DN80 or DN100 system.
The FSC-70 combines a DN50 process connection, approximately 415 cm² of reusable filtration surface and a reference capacity of up to 13 m³/h.
- DN50 industrial process piping
- Reference flow requirements up to approximately 13 m³/h
- Continuous industrial liquid filtration
- Medium solids loading
- Viscous and difficult-to-backwash process liquids
- Processes where frequent filter-bag replacement is undesirable
- Pre-filtration to protect downstream equipment or finer filtration stages
25 to 3000 micron DN50 filtration
The FSC-70 can be configured with stainless-steel wedge wire filter elements between approximately 25 and 3000 µm. Common filtration ratings include:
- 25 µm
- 50 µm
- 100 µm
- 250 µm
- 500 µm
- 1000 µm
- 3000 µm
The selected micron rating affects hydraulic capacity and the frequency at which the filter surface must be cleaned. A DN50 filter operating at 25 or 50 µm can therefore require different sizing from the same system operating at 100, 250 or 500 µm.
Stainless-steel construction and sealing options
The FSC-70 is designed for demanding industrial liquid service 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
- Industrial worm gear motor drive
- Seal materials selected according to process compatibility
- EPDM, FKM/Viton and PTFE configurations available depending on application
The final material and sealing configuration should be checked against liquid composition, temperature, operating pressure and any specific process requirements.
Industrial DN50 filter design
The FSC-70 combines a cylindrical wedge wire screen with mechanical scraper cleaning and a lower solids-collection section. The design provides a reusable filtration surface for processes where regular replacement of disposable filters would increase maintenance requirements.
- DN50 PN16 flanged inlet and outlet
- Approximately 415 cm² wedge wire filtration area
- Motor-driven mechanical scraper cleaning
- Outside-to-inside filtration flow
- Integrated solids collection section
- Differential-pressure monitoring capability
- Manual or automated solids discharge options
Manual, timed or differential-pressure controlled cleaning
Solids removed from the wedge wire element collect in the lower section of the housing. Cleaning and solids discharge can be adapted to the contamination load and level of process automation required.
- Manual operation and solids discharge
- Automatic time-controlled operation
- Automatic control using differential-pressure monitoring
Differential-pressure monitoring can be particularly useful where solids loading varies during production, because cleaning can be initiated according to actual filter loading instead of a fixed time interval.
Typical DN50 self-cleaning filter applications
The FSC-70 can be applied to a wide range of industrial liquids where continuous surface filtration and reusable filter media are beneficial.
- 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
- Polyurethane and polymer processing
- Plasticizers and similar process fluids
- Protection of pumps, valves and downstream equipment
Benefits of a DN50 scraper-type self-cleaning filter
- Continuous filtration during screen cleaning
- No routine replacement of disposable filter cartridges
- Reusable stainless-steel wedge wire filter element
- Mechanical removal of deposited contamination
- Approximately 415 cm² filtration surface
- Filtration ratings from 25 to 3000 µm
- Robust stainless-steel industrial construction
- Manual or automated solids discharge
- Reduced operator intervention in suitable processes
How to size a DN50 self-cleaning filter
DN50 connection size and nominal flow are only starting points. Correct self-cleaning filter selection requires evaluation of the full process.
- Required process flow in m³/h
- DN50 pipeline and available system pressure
- Required filtration rating in µm
- Liquid type and viscosity
- Solids concentration
- Particle size, shape and behaviour
- Operating pressure
- Operating temperature
- Chemical compatibility
- Cleaning and solids-discharge requirements
For viscous liquids, elevated solids loads or filtration ratings finer than 100 µm, the required filter size may be larger than a simple nominal-flow comparison suggests.
Compare DN50 with other self-cleaning filter sizes
Need more or less capacity? Compare the FSC-70 DN50 with compact DN25–DN40 filters and larger DN65, DN80 and DN100 self-cleaning configurations.
DN50 self-cleaning filter FAQ
What flow rate can the DN50 FSC-70 handle?
The FSC-70 has a reference maximum flow of approximately 13 m³/h. This value is based on water at approximately 100 µm. Actual capacity depends on viscosity, solids loading, filtration rating and process conditions.
What connection size does the FSC-70 use?
The FSC-70 uses DN50 PN16 flanged inlet and outlet connections.
What micron ratings are available for the DN50 filter?
Stainless-steel wedge wire elements are available from approximately 25 to 3000 µm, including common ratings such as 25, 50, 100, 250, 500, 1000 and 3000 µm.
What is the filtration area of the FSC-70?
The FSC-70 provides approximately 415 cm² of reusable wedge wire filtration surface.
Can the DN50 filter clean itself while filtration continues?
Yes. The geared motor rotates the cylindrical wedge wire element against the scraper, removing deposited contamination while the main liquid-filtration process continues.
What pressure and temperature can the FSC-70 handle?
Standard operating conditions are 0 to 10 bar and +10 to +80 °C. Higher-pressure configurations up to 16 bar may be available on request.
Is the FSC-70 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 flow, viscosity, filtration rating and solids loading. As an initial reference, the FSC-70 DN50 is rated up to approximately 13 m³/h, the FSC-110 DN65 up to approximately 25 m³/h and the FSC-175 DN80 up to approximately 35 m³/h when filtering water at approximately 100 µm.
Can the FSC-70 be controlled automatically?
Yes. Depending on the selected controls, cleaning and solids discharge can be time-controlled or integrated with differential-pressure monitoring for automated operation.