Precision filter (also known as bag filter), the cylinder shell is generally made of stainless steel, the internal use of PP meltblown, wire burned, folded, titanium cartridge, activated carbon cartridge and other tubular cartridges as a filtration element, according to the different filtration media and the design of the process to select different filtration elements, in order to achieve the requirements of the water quality. The machine body can also choose the quick-fit type, in order to conveniently and quickly replace the filter element and cleaning. The equipment is widely used in pharmaceutical, chemical, food, beverage, water treatment, brewing, petroleum, printing and dyeing, environmental protection and other industries, is all kinds of liquid filtration, clarification, purification and processing of ideal equipment.