Highly Controlled Glass Filter Media
NW40 is a glass filter media equipped with High Calibration Technology and made from green glass sourced from controlled origins. It is designed to provide filtration capacity similar to that of Nature Works Glass Filter Media while offering significant savings in water and energy consumption thanks to its high clogging capacity. NW40 is made from recycled green glass from controlled sources, which undergoes an advanced disinfection process using a dual Ozone and UV Radiation system.
NW40 is made from controlled-source green glass, but this type of glass can still carry some bacterial load. That’s why we subject it to a dual disinfection system, including an Ozone bath and exposure to UV Radiation. This results in green glass that is not only perfectly calibrated but also clean, achieving a much higher quality level than any other green filter glass on the market.
Performance
Maximum Filtration Performance
The efficiency of Nature Works is based on the elimination of the most common particulate matter found in the water. This simultaneously maximizes savings and efficiency. We achieve this thanks to a highly selected grain curve and to a surface treatment technology of the grains, which allows us to avoid Biofilm, keep the microchannels open and make the media particles totally safe to handle.
The utility of a filter media is determined by a compromise between micron rate and clogging capacity
Efficiency
Energy Saving
The Anti-Compaction Technology® has been designed to keep the micro channels that form in the filtering mass open, so pressure loss is negligible. Thanks to this, the pump works more smoothly and therefore reduces its energy consumption saving operational costs:
Water saving
Durability
Anti-Compaction Technology
A single layer to achieve maximum durability
Safety
Safety, a basic quality
Safety is a basic quality when it comes to products used for water treatment for human use. For this reason at Nature Works we subject our glass to an advanced micro grinding to eliminate sharp and cutting edges.
With this process we obtain a glass that is harmless and completely safe to handle.
Certified Absence of Free Silica
The crystal silica is a compound mineral that can be found in rocks and sand and may be found in filtration sand. A long term exposure to this compound could lead to various lung problems. Nature Works avoids this hazard as it has no Free Silica in its composition. Certified by Bureau Veritas Certification number BV ES026775-A-CPI.
Dual Disinfection Process
NW40 is made from controlled-source green glass, but this type of glass can still carry some bacterial load. That’s why we subject it to a dual disinfection system, including an Ozone bath and exposure to UV Radiation. This results in green glass that is not only perfectly calibrated but also clean, achieving a much higher quality level than any other green filter glass on the market.
Public pool
Private pool
Specific applications
Certifications, Accreditations and Tests
NW40 takes up more space than silica sand because of its particle density difference and its Anti-Compaction Technology, therefore you will need 20% less than the amount recommended by the manufacturer on the filter instructions.
The combination of layers with different sized grains inside the filter is needed when the filter media has not Anti-Compaction Technology, in order to delay clogging and be able to do a correct backwashing.
Thanks to its High-Calibrated filter media grain curve, NW40 does not need different layers in any kind of filter. This also ensures an indefinite shelf life.
NW40 has been designed and produced specifically for use in water filters. To ensure maximum purity only virgin glass is used, it’s the only glass with controlled origin and guaranteed not to have been in touch with bacteria or any other contaminating materials.
Unlike other glass filter media, it does not come from urban glass banks and therefore is the only one suitable for water filtration for human consumption.
Thanks to its advantages and technical characteristics NW40 is used in over 100.000 installations all over the world.
Used mainly in:
- Private pool
- Public pool
- Advanced industrial installations such as purification plants, water parks, nuclear installations, desalination plants and aquaculture circuits among others.
All our models are able to filter 1 μm. with crescent effectiveness.
The model with highest effectiveness is not recommended for swimming pool because due to its minimum clogging capacity, it obligates to make continue backwashing and it is thrown out to the sewage in the backwashing process.
The recommended use for this model is, generally, applications without suspended matter > 10 μm.
A Certificate has to be issued by a Certification Company, which does not issue filtration micron rate certificates. We count on the tests from the french IFTS laboratories for filtration.
Silica sand loses its filtration capacity in a short period of time due to the growth of biofilm (bacterial colonies) between its grains, which creates preferential channels and clogging.
The absence of biofilm plus Anti-Compaction Technology makes Nature Works one of the most efficient filter medias on the market.
Yes, all standardized filters allow the use of NW40. If your filter does not have the worldwide harmonized nozzle opening size (0,35 +- 0,015 mm), we recommend you change the nozzles for standard ones
Glass obtains its colour when its being manufactured due to different chemicals, metals and oxides being added to achieve each colour. As it is encapsulated at a molecular level, this does not change any of the glass ́s properties, nor does it affect the filtering process.
However, as the glass used for the coloured filter media comes from glass banks, not directly from the manufacturer, it may have all sorts of bacteria and contaminants that can end up in the water, which makes it risky to use in water filters for human consumption.
By definition, filtration is a mechanical process where no other forces intervene, unwanted particles are retained in a filter due to the interaction of the water flow and the filter media.
Due to its insulant nature, glass does not allow the free circulation of electrons, and therefore it is not possible to “charge” or “activate”. Some other manufacturers claim that their glass is “activated” yet this feature has not been backed up by any studies or demonstration.