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Nylon Abrasive Brush
Nylon abrasive brushes are designed to clean internal tubes starting from 25 millimeters. The brushes are versatile and work best with a Goodway mechanical tube cleaning system.
Nylon Abrasive Brush (NAB-Serie)
For internal tube cleaning from 25 millimeters and up, NAB brushes are a perfect choice. NAB brushes have nylon bristles with a silicon carbide coating, so they not only provide a cleaning, but also a polishing effect. This leads to very effective cleaning with excellent results.
The abrasive brushes are always used in oversize, this can be between 5 and 10 millimeters. This means that for cleaning a tube with an internal diameter of 40 millimeters, a brush of 45/50 millimeters is required.
Applications within the industry
NAB brushes are increasingly being used for all kinds of industrial applications, below are a number of examples:
- Shell & Tube heat exchangers
- Firetubes of firetube boilers
- Tubular evaporators in the (food/dairy) industry
- Flue gas coolers
- Reactor tubes of reformer/catalyst systems
NAB brushes are used oversized, this provides 2 major advantages:
- More oversize ensures longer and more intense contact with the tube wall, creating more friction. Due to this higher friction, the cleaning effect will be increasingly better.
- More oversize ensures that these brushes are less susceptible to wear and tear, so that they ultimately have a much longer lifetime. (a brush with a 10 millimeter oversize can, for example, lose 2 millimeters - however it still has 8 millimeters left)
The oversized cleaning effect also means that there is less need to precisely get the exact internal tube diameter. If it is a millimeter larger or smaller, it has virtually no effect on the brush, because it is already 5/10 millimeters larger itself. Especially for larger jobs such as heat exchangers or reactors with several thousand tubes, this can make a huge difference in calculation and cleaning.
Replacement of stainless steel brushes
NAB brushes have several factors that make the brushes very interesting and effective. Some examples are; lifespan, flexibility, cleaning effect and more.
Due to all these factors, the NAB brushes are increasingly being used as a replacement for ''traditional'' stainless steel brushes. This is because stainless steel brushes often have to be tailor-made very precisely, resulting in a very high margin of error. Especially if the diameter turns out to be different at the start of the job.
If you need further assistance, please contact our customer service to discuss the possibilities and options. You can of course always chat with our employees by starting the chat function at the bottom right of your screen!
Let us help!
One of our customers rejected a heat exchanger bundle (2000 tubes, 12 meters vertical with a diameter of 38.5mm) that had been cleaned by one of our competitors, the customer found the delivered result below standard. Therefore, the customer asked us to come up with a solution to deliver a better result. By not making the same mistake as the competitor and also using a high-pressure unit, we chose to use the AWT-100X tube cleaning system combined with a water-cooled shaft of 15.2 meters and custom made 45mm Nylon Abrasive Brushes (NAB). The results were very good, the tubes were fully polished and clean after the first pass.
|Oversized size provides extra cleaning effect|
|Effective from 30 to 90 millimeters (Tube I.D.)|
|Can be used dry or with water|
|Very long lifetime due to robust material|
|Does not damage the tube material|