Commercial filter applications demand equipment of the highest quality and performance to provide reliable, consistent operation after the installation and for years to come.

The CF Series of commercial filters has four types of standard filters to treat most water problems.

CFSD – Sand Filters
Petwa’s sand filters are an economical filter for removing silt, turbidity, suspended matter and rust particles within the range of 25 – 30 microns. Sand filter media beds are supported by a layered gravel base covering the distributor for ideal service and backwash flow distribution.

CFMM – Multi-Media Filters
Petwa’s multi-media filters are an advanced type of filter to deal within the range of 15 – 20 microns. Multi-media filter media beds are supported by a layered gravel base covering the distributor for ideal service and backwash flow distribution. The active filtering media consists of layered garnet sands, filter sand and anthracite to provide effective filtration, while allowing higher service flow rates with a smaller pressure drop than a conventional sand filter. The layered medias also provide a greater holding capacity due to better depth filtration.

CFAC – Activated Carbon Filters
Petwa’s activated carbon filters are used for the adsorption of undesirable tastes and odours in water caused by dissolved or suspended organic matter. Activated carbon can also be used for the removal of chlorine. Applications include pretreatment for reverse osmosis systems and food and beverage equipment. The activated carbon media is supported by a layered gravel base covering the distributor for ideal service and backwash flow distribution.

CFMG – Manganese Greensand Filters
Petwa’s manganese greensand filters are used for the oxidation and filtration of dissolved iron, manganeseand hydrogen sulfide gas from water. This is accomplished by the use of a continuous regeneration process, where a solution of potassium permanganate is fed upstream with a chemical feed pump. The filter bed is also supplemented by a layer of anthracite which provides an initial coarser filtration prior to the manganese greensand media, finally supported by a layered gravel base covering the distributor for ideal service and backwash flow distribution.

Documentation:

CF Series Brochure