REGFILTER regenerative filters are the perfect solution for filtering large volumes of water in artificial environments.


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  • Swimming pools
  • SPAs
  • Waterparks
  • Artificial lagoons
  • Industrial processes

What is a filter?


In any installation (swimming pool, water park, artificial lagoon, industrial process, etc.), the installation of a filter is necessary in order to achieve good quality and transparency of water. This, through a physical treatment (filtration), is capable of keeping the water of the installation free of impurities, dirt, algae and bacteria.


How does a filter work?


The main elements of a filtering system are the filter and the pump:

· The pump, which using an electric motor is in charge of capturing the water in the installation and driving it to the filter.

· The filter is a tank to which the water driven by the pump arrives. This water passes through a filter media, in which impurities larger than a certain size are trapped (depending on the filter media, it is possible to retain particles from 1 to 60 microns). Once the water has passed through the filter media, it is already to be returned to the facility with sufficient quality.

What kind of filters are there?


There are many types of filters, and with a wide variety of filter media. The most common or traditional were the sand filters, and with a similar operation to these, the glass or diatoms.

In recent years, regenerative filters have been establishing themselves on the market for the treatment of large flows, thanks to their excellent capacity to treat large volumes of water in a space much less than that occupied by traditional sand filters.

Why a regenerative filter?


Regenerative filters have a large filter surface, much more than a sand or glass filter of similar dimensions. This means that, for the same diameter, the filtered flow is much higher than that of a conventional filter. This is one of the reasons that regenerative filters have replaced other options in those applications where large volumes of water are handled, especially in recreational applications.

These systems provide exceptional filter quality, as well as significant water and energy savings compared to other traditional systems, such as sand, glass or diatom filtration.


On the other hand, regenerative filters usually work at filter rates between 3 and 5 m³/h/m², (1,2 and 2 US gpm/ft2) unlike conventional filters, which work at between 20 and 50 m³/h/m² (8,2 and 20,5 US gpm/ft2). This unit (m³/h/m² or US gpm/ft2) indicates the cubic meters of water that pass through the filter medium per hour of operation (the US gallon per minute) and per square meter (or square foot) of filter surface (sand, glass, perlite or any other filter media) that the filter. These low filtration rates result in higher filter quality.

Why Regfilter?


REGFILTER, filters, with their patented technology, provide very high performance and great longevity thanks to the use of high-quality materials, as well as great ease of use,due to it is a practically automated and highly intuitive system.

In addition, due to its operation, it minimizes water losses, energy consumption and the use of chemical products compared to other more conventional technologies, such as sand or glass filters.

REGFILTER regenerative filters have no moving parts, and incorporate a patented self-cleaning system, thus avoiding maintenance costs and cumbersome cleaning operations. In addition, they are made of AISI304L stainless steel (optional in AISI316L), so resistance to the passage of time is guaranteed.

REGFILTER has a wide variety of filters, for treatment of flow rates from 18 to 581 m³/h (79 to 2558 US gpm), working at filter rates between 3 and 5 m³/h/m² (1,2 and 2 US gpm/ft2), being also a modular technology, allowing the installation of filters of different sizes for adapt to the needs of each installation.

If we add to this the fact that the filter media used by REGFILTER regenerative filters, micronized perlite, is capable of retaining particles larger than 1 micron, we can conclude that the filtering quality is much higher than any other type of conventional filter, such as sand filters that usually retain particles larger than 20 microns.

Technical specifications


Model a (mm) b (mm) c (mm) Filtering surface (m²) Flow rate (m³/h)*
DN400 1.734 408 540 6,0 18 – 30
DN600 1.820 608 755 15,8 47 – 79
DN800 1.902 810 975 30,7 92 – 153
DN1.000 2.020 1.010 1.175 50,9 152 – 254
DN1.200 2.134 1.210 1.405 63,0 189 – 315
DN1.600 2.305 1.612 1.830 116,4 349 – 581

* Flow rates at 3 and 5 m³/h/m² Filter rates