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Cintropur NW18 25 Micron Whole-House Water Filter
  • Cintropur NW18 25 Micron Whole-House Water Filter
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NW18 Cintropur mechanical sock filter

Cintropur NW18 is a complete mechanical filter for the main water supply, protecting the installation from sand, silt, rust, and other solid contaminants. It comes standard with a sock filter 25 microns, with the option to use filters of 5, 10, 50, or 100 microns. The transparent body facilitates contamination monitoring, and the vortex flow solution reduces pressure drops.

299.00 zł
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NW18 Cintropur mechanical sock filter

NW18 Cintropur mechanical sock filter

Cintropur NW18 is a complete mechanical filter for the main water supply, protecting the installation from sand, silt, rust, and other solid contaminants. It comes standard with a sock filter 25 microns, with the option to use filters of 5, 10, 50, or 100 microns. The transparent body facilitates contamination monitoring, and the vortex flow solution reduces pressure drops.

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Description

NW18 Cintropur mechanical sock filter is a complete water filter installed on the main water inlet, designed to protect a household installation from sand, silt, rust particles, and other solid contaminants. The standard filter cartridge with 25-micron filtration effectively captures typical mechanical impurities, while the vortex-flow design helps reduce pressure drops. It is a practical component of a larger water filtration system and sensible support for the installation, fittings, and equipment responsible for further water treatment.

Mechanical filter for the main water connection

The Cintropur NW18 was designed as an in-line filter for installation on the main water supply. Its purpose is to capture mechanical impurities before they reach further sections of the system. As a result, it helps protect pipes, valves, fittings, taps, flush tanks, heaters, and other devices that come into contact with water.

This model operates as standard with a 25-micron filtration rating, while also allowing the use of replaceable sock cartridges with 5, 10, 25, 50, and 100-micron filtration. This makes it possible to match the filtration precision to the water quality and the needs of the installation.

How does the Cintropur NW18 work?

The filter uses a solution that sets the water in vortex motion. This method of operation causes larger fractions of contaminants to settle at the bottom of the transparent housing, while finer particles such as silt and similar sediment are captured on the filter layer.

This solution provides effective separation of contaminants while maintaining low pressure drops during filtration. An additional advantage is the transparent housing, which makes it easy to check the degree of cartridge contamination without having to disassemble the unit.

There is also an air vent in the filter head, which allows air collected under the head to be released, for example after replacing the cartridge.

Key benefits in everyday use

  • protection of the water system against sand, silt, rust, and other mechanical contaminants,
  • standard 25-micron cartridge ready to operate immediately after installation,
  • the ability to change filtration precision thanks to 5, 10, 25, 50, and 100-micron cartridges,
  • high build quality of the in-line filter,
  • low pressure drops during water filtration,
  • easy contamination monitoring thanks to the transparent housing,
  • simple cartridge replacement and convenient servicing,
  • complete set with installation accessories.

Option to select filtration precision

One of the practical advantages of the NW18 model is the ability to match the sock cartridge to current operating conditions. The set includes a 25-micron cartridge as standard, but the filter design also allows the use of cartridges with the following ratings:

  • 5 micron,
  • 10 micron,
  • 25 micron,
  • 50 micron,
  • 100 micron.

This solution makes it easier to configure the unit as the first stage of installation protection or as a component preceding more advanced systems such as an osmotic filter, a reverse osmosis filter, reverse osmosis, or a complete reverse osmosis system. Effective mechanical filtration before end devices helps reduce contaminant buildup and supports stable operation of the entire system.

Operation and ease of use

The filter is supplied as a complete set, which simplifies installation and start-up. In everyday use, an important advantage is easy cartridge replacement and the ability to quickly assess their condition through the transparent housing.

After replacing the cartridge, it is worth removing the air accumulated under the head using the air vent. This solution makes it easier to properly prepare the filter for further operation. The selection of cartridge precision should match the water quality and system requirements.

Set contents

  • Airwatec Cintropur NW18 filter
  • Two half-unions with O-ring seals, enabling connection to a 3/4-inch installation (other diameters via reducers)
  • Wrench for unscrewing the transparent housing
  • Factory-installed 25-micron cartridge

Complete water filter, installed on the main connection to protect the water installation against sand, silt, solid rust particles, and other mechanical contaminants.

(25-micron filtration accuracy, with the option of fitting “sock” cartridges with 5, 10, 25, 50, and 100-micron filtration).

The Airwatec Cintropur NW18 in-line filter is characterized by high build quality and low pressure drops during water filtration. Another major advantage is that the customer receives a complete filter with installation accessories, as well as the ease of cartridge replacement, with the possibility of changing the filtration precision depending on needs.

The filter uses a solution that sets the water in vortex motion, thanks to which larger fractions of contaminants settle at the bottom of the transparent housing, while fine silt particles, etc., are captured on the filter layer. The filter head includes an air vent, enabling the release of air collected under the head (e.g. after cartridge replacement).

Technical parameters:

  • Flow rate : up to 3.5 m3/h
  • Connection : 3/4 inch (two half-unions included)
  • Operating pressure : up to 10 bar
  • Water temperature : up to 50 degrees C
  • Pressure drop : < 0.3 bar
  • Total height : approx. 24 cm
  • Maximum diameter : approx. 13 cm
  • Width after screwing on the unions : approx. 24 cm

The set includes:

  • Airwatec Cintropur NW18 filter
  • Two half-unions with O-ring seals, enabling connection to a 3/4-inch installation (other diameters via reducers)
  • Wrench for unscrewing the transparent housing
  • Factory-installed 25-micron cartridge

Technical specification

ParameterValue
ModelAirwatec Cintropur NW18
Device typeMechanical sock filter / in-line filter
Standard filtration precision25 micron
Available cartridge ratings5, 10, 25, 50, and 100 micron
Flow rateup to 3.5 m3/h
Connection3/4 inch (two half-unions included)
Operating pressureup to 10 bar
Water temperatureup to 50 degrees C
Pressure drop< 0.3 bar
Total heightapprox. 24 cm
Maximum diameterapprox. 13 cm
Width after screwing on the unionsapprox. 24 cm
Additional elementAir vent in the head
HousingTransparent, facilitating contamination monitoring

FAQ

What is the Cintropur NW18 mechanical filter used for?

It is a filter installed on the main water connection, intended to protect the installation against sand, silt, solid rust particles, and other mechanical contaminants.

What cartridge is included in the set?

As standard, the filter is equipped with a sock cartridge with a 25-micron filtration rating.

Can a cartridge with a different filtration rating be used?

Yes. The NW18 model allows the use of sock cartridges with 5, 10, 25, 50, and 100-micron filtration, so the filter's operation can be adjusted to the needs of the installation.

What is the filter connection size?

The filter has a 3/4-inch connection. The set includes two half-unions that allow connection to a 3/4-inch installation, and reducers can be used for other diameters.

What is the flow rate of the Cintropur NW18?

The filter flow rate is up to 3.5 m3/h, which allows it to be used as a mechanical filter on the main water supply.

How can the cartridge contamination level be checked?

The transparent housing helps with this. The user can easily assess the amount of sediment and determine when it is worth replacing the filter cartridge.

Why does the filter have a low pressure drop?

The design using vortex water motion supports the separation of larger contaminants at the very beginning of the filter’s operation, which helps maintain a low pressure drop. The declared pressure drop is below 0.3 bar.

What is the air vent in the head used for?

The air vent allows the release of air accumulated under the head, for example after replacing the cartridge. This makes it easier to properly prepare the filter for further operation.

What is included in the complete set?

The set includes the Airwatec Cintropur NW18 filter, two half-unions with O-ring seals, a wrench for unscrewing the transparent housing, and a factory-installed 25-micron cartridge.

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Paweł Wojciechowski

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NW18 Cintropur mechanical sock filter

NW18 Cintropur mechanical sock filter

Cintropur NW18 is a complete mechanical filter for the main water supply, protecting the installation from sand, silt, rust, and other solid contaminants. It comes standard with a sock filter 25 microns, with the option to use filters of 5, 10, 50, or 100 microns. The transparent body facilitates contamination monitoring, and the vortex flow solution reduces pressure drops.