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Cintropur NW25-DUO-CTN ¦ Spin Down Centrifugal Filter Housing

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The CINTROPUR NW25-DUO-CTN housing is designed pre-dominantly for residiential use (Whole House filtration etc.) however can also be used for smaller scale Industrial and Agricultural applications.

Made entirely from premium quality synthetic material, CINTROPUR filters are ideal for use with food products and drinking water. The CINTROPUR vane changes the liquid flow using centrifugal motion, forcing the larger particles down into the lower bowl, depending on the chosen filter sleeve micron-size.

The basic principle of CINTROPUR housings are for the protection of sanitary domestic, collective and agricultural water supplies by filtering out the solid particles (earth, sand, rust, etc.) suspended in the water. Ideally the protection filter will be placed at the entrance of the installation, in order to protect all the devices connected after.

Advantages of using CINTROPUR Filters

  • High and constant flow rate.
  • Low pressure drop.
  • Centrifugal pre-filtration with a cyclonal effect.
  • Robustness and reliability.
  • Fast and easy flushing out via the drain cock (on NW range).
  • Exclusive system, ecological and not expensive (inexpensive, replaceable filter sleeve).
  • Permanent visual control of the filter sleeve (transparent bowl)
  • Optimal filtration technique through a filter sleeve and a centrifugal vane.

The CINTROPUR NW25-DUO-CTN employs a second housing stage which uses a refillable container filled with activated carbon.

  • Its large pore volume and pore size distribution makes it highly suitable for the improvement of taste and the removal of odour, chlorine, ozone, micropolutants such as pesticides and other organic substances.
  • The quantity of activated carbon which is used in the CINTROPUR DUO-CTN filters guarantees optimal results, as well as optimal lifespan. The poorer the flow rate, the greater the result.
  • The lifetime of the carbon depends on its application: for drinking water it is recommended to change the carbon every 3
  • months (max. 20 000 filter volumes) otherwise every 6 months at the most.
  • The internal mechanism of the filters ensures a maximum contact time between the untreated water and the activated carbon; guaranteeing optimal efficiency of treatment.
  • One of the best activated carbons available on the market is used, offering a very high adsorption capacity.
  • The advantageous price of activated carbon refilling: packaging specially designed for easy filter filling.
  • Innovative engineering allows for each and every part to be replaced if there were ever a fault, so you never have to purchase the full system again. This in turn makes them much more environmentally friendly than other water filter housings by eliminating a significant amount of plastic waste.

Applications of Use

Protection of sanitary networks supplied with domestic water, rainwater or well water (residential property, schools, restaurants, etc). Filtration of water before softeners, reverse osmosis or treatment by ultraviolet.

Protection of sanitary networks, machine tools and all industrial machinery for water treatment. Filtration of water before high pressure cleaning machines (100 to 200 bar / 1,500 to 3,000 psi) and very high pressure cleaning machines (1,500 to 2,500
bar / 21,000 to 35,000 psi).

Filtration of watering (spraying) installations, filtration of water for animals, filtration of rainwater and well water.

Original Package Includes

NW25 DUO Housing x 2
Non-Washable Polyester Filtering Sleeve (25µm)
Refillable Container (CTN) filled with activated carbon
Housing Spanner
1" or 3/4" Connectors x 2

Optional Extras

Please contact us before purchasing if you require these.

Wall Brackets
1/4" Nickel-Plated, Brass Drain Cock

Technical Specifcation

Diameter of Pipe Connection
1" or 3/4"

Working Pressure
10 Bar / 145 PSI

Max Operating Pressure
16 Bar / 262 PSI

Max Operating Temperature
50ºC / 122ºF

Filter Sleeve
Non-Washable: 25µm
Non-Washable: 1µm - 5µm - 10µm - 25µm - 50µm - 100µm
Non-Washable: 150µm - 300µm

Available Volume
0.57 Litres / 12.5 Gallons

Filtration Surface / Capacity
440 cm² with sleeve + 0.57L activated carbon

1.23Kg / 2.86lb (1.65Kg / 3.63lb with packaging)

Package Dimensions
L: 385mm
W: 320mm
H: 140mm

Product Materials

Filter Head
Polypropylene (PP) + 20% GF



O-ring butadiene-acrylonitrile (NBR)

Centrifugal Vane + Cap
Polyethylene (PE)

Drain Screw
Polyamide (PA) + Polyester (2K)

Filtering Support
Polypropylene (PP) + 20% GF

Filtering Sleeve
Polyester (Non-Washable) or Nylon (Washable)

More Information
Brand/Manufacturer Cintropur
Product Name Cintropur Spin Down Centrifugal Filter Housing NW25-DUO-CTN
Working Pressure 10 Bar / 145 Psi / 1000 kPa
Max. Working Pressure 16 Bar / 232 Psi / 1600 kPa
Max. Working Temp. 50°C / 122°F
Model Number NW25-DUO-CTN
Weight (kg) 3.700000
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