Sample preparation
Stamoclean CAT411

Sample preparation
Stamoclean CAT411 ©Endress+Hauser
Sample preparation
Stamoclean CAT411 ©Endress+Hauser

Self-cleaning crossflow filter for pressurized pipe sampling

Stamoclean CAT411 provides bacteria-free micro filtration of samples from pressure pipes. Its self-cleaning crossflow filter avoids filter blocking, thus increasing your process safety. Thanks to a minimized dead volume, it reflects changes of your process promptly and shortens the response time of your downstream measuring devices. Stamoclean CAT411 can be easily integrated into existing processes.

  • Benefits

    • High operational safety thanks to robust construction

    • Bacteria-free micro filtration

    • Easy installation and integration

    • Short response time of downstream measuring devices thanks to low dead volume

    • Self-cleaning design minimizes operating costs

  • Field of application

    Stamoclean CAT411 is a self-cleaning sample preparation for:

    • Municipal wastewater treatment plants:
      - Return activated sludge
      - Waste activated sludge
      - Secondary clarifier

    • Industrial wastewater treatment plants:
      - Return activated sludge
      - Waste...

Features and specifications



  • Measuring principle


  • Characteristic

    Sample Preparation

  • Size

    370 x 200 x 70 mm
    14.43 x 7.8 x 2.73 inch

  • Design

    Housing CAT 411 POM
    Fastening screws Stainless steelSeals Perbunan®Filter membrane PTFE

  • Process temperature

    5 to 50 °C (41 to 122 °F)

  • Ambient temperature

    5 to 50 °C (41 to 122 °F)

  • Process pressure

    0.2 to 1 bar (3 to 15 psi)

  • Consistency of the sample

    to max. 8 g/l TS

  • Specials

    Sample preparation made of pressure pipe without additional pump possible, otherwise a feed pump is needed

  • Application

    Water, Wastewater, Processwater

  • Consumables

    Filter membranes necessary

Documents / Manuals / Software

Accessories / Spare parts

Order code
    • Order code 51511288

      KIT CAT411 reserve membrane, 2 pcs

    • Order code 51511474

      KIT CAT411 pipes + connectors

    • Order code 51516465

      KIT CAT411 spare sealing

    • Order code 51512790

      Pump for CAT411

      Sample feeding pump for clear water without cutting wheel. Submersive pump for feed of clear and lightly polluted water without fibrous impurities; stationary and transportable. Pump tolerates self-throtteling by back pressure. Type KP 250 A1, 230 V, 10m power cable, pump protection with pressure pipe joint Rp 1 1/4", max. power 0,5 kW, stainless steel 1.4301, dimensions: d=149mm, h=214mm, max. head: 7m, max. capacity: 11 m3/h (free passage 1m head), enclosure class IP68.