Industry News

Classification of pressure filters


The pressure filter is made of stainless steel. Due to the different filling media of the filter, the purpose and function are different. Generally, there are quartz sand filters, activated carbon filters, and manganese sand filters. It can be used alone or in combination according to the actual situation. The medium of the multi-media filter is quartz sand, anthracite, etc. The function is to filter out suspended solids, mechanical impurities, organic matter, etc., and reduce the turbidity of the water. The activated carbon filter media is activated carbon, the purpose is to absorb and remove pigments, organic matter, residual chlorine, colloids, etc. in the water. The medium of the manganese sand filter is manganese sand, which mainly removes ferrous ions in the water.

Pressure filter, also known as decontamination device and filter valve, is an indispensable device in the pipeline system of conveying medium. It is usually installed at the inlet of pressure reducing valve, pressure relief valve, fixed water level valve or other equipment, and its function is to filter The mechanical impurities in the medium can filter the rust, sand, and a small amount of solid particles in the sewage to protect the fittings on the equipment pipeline from wear and blockage, so as to protect the normal use of valves and equipment. After a filter cartridge with a certain filter screen, its impurities are blocked, and the clean filtrate is discharged from the filter outlet. When cleaning is needed, just take out the detachable filter cartridge and reinstall it after cleaning. Therefore, It is extremely convenient to use and maintain. The above should be a mesh filter. In fact, there are many kinds of filters, such as laminated filters, sand filters, carbon filters, etc. The main principle is to use the pore size of the filter medium to trap substances smaller than the pore size of the medium. Of course, some filter media also have special effects such as adsorption. Most filters are not so troublesome to backwash, as long as clean water is used to introduce the medium in the reverse backwash filter from the end of the filtered water to achieve a good backwash effect.