Nutsche filter – FPP filter

Nutsche pressure filters are extensively used to separate solids from liquids with the added benefit of removing impurities.
We provide agitated Nutsche filters operating under pressure and performing multi functions:

  • Inertisation
  • Filtration (solid–liquid separation)
  • Cake smoothing
  • Displacement washing
  • Re-slurry washing
  • Cleaning-in-place (CIP)

All operations are conducted without exposing operators to the products and without contaminating the product itself, ensuring safety and quality at the same time.
We provide special solutions to keep the process fully contained, also during the product’s filling and discharge operations.


Features and options

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  • Filtering surface up to 16 m2
  • Design pressure: – 1 barg to + 6 barg
  • Design temperature: – 25°C to + 200°C

Flat bottom

  • Flanged to the cylindrical vessel and secured with:
    • C-clamps
    • Swing bolts
    • Super clamp
    • Hydraulic bayonet 
  • Welded to the cylindrical vessel

Filter media

  • Monolayer:
    • Synthetic cloth
    • Metal mesh
  • Sintered multilayer metal mesh

Top entry agitator
Blades designed with special teeth to optimise cake smoothing and product discharge without mechanically damaging the product

Available with:

  • Straight arms
  • “S” shaped arms

Double mechanical seal

  • Flushed
  • Dry running
  • Gas lift off

Side discharge port
Fixed flush to the filter screen and the vessel side wall

Available options:

  • Manually opened hinged plug for discharge into isolator
  • Hydraulically operated O-ring type discharge hatch
  • Hydraulically operated metal – metal straight type discharge hatch
  • Hydraulically operated metal – metal “reverse” type discharge hatch

Cleaning-in-place (CIP) systems
The following options are used to wash the internal surfaces in contact with the product:

  • Vessel CIP spray balls
  • Mechanical seal recess spray ring
  • Process connections spray nozzles
  • Discharge hatch spray nozzles
  • Discharge hatch seal spray nozzles

Welded waterproof insulation

Chemical, pharmaceutical and sterile versions

Material of contact (MOC) with the product

  • 316L stainless steel
  • Duplex stainless steels
  • Alloy C 22
  • Titanium

Other materials available on request.


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Discharge isolator (up to OEB6)

Pack Off isolator (up to OEB6)

Temperature control unit (TCU)

  • Steam operated
  • Electrically operated

Other accessories

  • Inerting systems provided with oxygen analyser on request
  • PLC automation systems


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Top performing for filtration and washing pharmaceutical products, such as APIs (active pharmaceutical ingredients) and HPAPIs (highly potent active pharmaceutical ingredients), they are extensively used in the following other industries:

  • Biochemicals
  • Crop protection
  • Flavours & fragrances
  • Food & beverage
  • Pharmaceutical
  • Polymers
  • Precious and technology metals
  • Waste recovery

Depending on the product and/or the application, different construction materials are provided, including glass lined filters to be used in aggressive acid conditions.

More about glass lined Nutsche filters

Filters can be provided as standalone units or modular turnkey systems to simultaneously satisfy functional needs and efficiency in project costs and execution time.

More about plants

More about processes

For new or innovative applications or to assess the correct sizing even for consolidated processes, we provide support to customers with testing operations to study product filterability, to select the filtration media, to identify the ideal process parameters and to support scale-up.

More about R&D

Want to know more about the Nutsche filter - FPP filter?

Contact us