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It is called a pressure filter. It is an important part of the pre-processing and water purification system for pure water preparation. Made of steel rubber or stainless steel, it is divided into natural quartz sand filter, multi-media filter, activated carbon filter and manganese sand filter according to different filter media. It can be divided into single-flow filter according to the water inlet method. Double-flow filter, according to the actual situation can be used in conjunction can also be used alone. The single-flow mechanical filter has a simple pipe and runs smoothly. The filtration flow rate is generally 4-50 m/n, and the operation cycle is generally 8 hours. The two-flow type mechanical filter is provided with a water inlet device at the upper and lower ends and a water outlet device at the middle portion. Its advantages are large amount of filtered water, high decontamination capacity, and long operating cycle, usually 20 hours. The disadvantages are that the piping system is more complex and the operation is not stable. It is difficult to flush and refuel.
August 21, 2023