Category Archives: article

For the filter performance test bed, which must be strictly cleaned prior to testing, the test system and the contamination injection system serving the test system are equipped with a filter, where the filter and the tested Filter is two things, its accuracy requirements, dirt capacity requirements than the filter to be tested with high […]

There are four kinds of coarse filter, ordinary filter, precision filter and special fine filter, which can filter out more than 100μm, 10 ~ 100μm, 5, respectively, according to their filtering accuracy (filter impurity particle size) To 10 m and an impurity of 1 to 5 m in size. When using the oil filter, consider […]

The filter in the hydraulic system is called the oil filter. For details, please refer to the entry: Oil Filter Hydraulic oil often contains particulate impurities, will cause the relative movement of the hydraulic components of the surface wear and tear, slide valve stuck, throttle orifice blocked, the system reliability greatly reduced. In the system […]

So that polluted air is clean to the production and living conditions required, that is, the air to a certain degree of cleanliness. Air Filter How to filter air: The general air purification equipment to filter air is roughly divided into methods and steps. 1, multiple filters —- prevent the air of dust and bacteria […]

A, filter filter material area is too small or unit capacity is too small dust capacity; B, pre-filter filtration efficiency is low; C, the user of the filter life expectancy is too high. For the first reason, switching to a multi-filter with a large filtration area can extend the service life, which should be taken […]

According to the use of reasonable requirements to determine the level of filter efficiency. Typically, the end filter determines the cleanliness of the air, the former filter to protect the role of the end filter, which extends the life of the end filter to reduce maintenance costs, protect the air conditioning system to work. Specific […]

1 because the user’s on-site reasons, not all one-time installation of high efficiency air filter, is divided into more than 8 home installation to meet customer site, not installed filter should pay attention to the storage problem, because the high efficiency filter is easy Damaged pieces, a little harder handling that is caused by media […]

① chemical stability. Cellulose acetate membrane will inevitably occur hydrolysis, cellulose acetate membrane continuous operation allows the pH value of the range of 4 to 6, cleaning is allowed to range from 3 to 7 pH, pH 5.7, the slowest hydrolysis rate, which The pH value range of the continuous operation of the composite membrane […]

(1) the permeability of water should be large, high desalination rate. (2) has a certain degree of strength and firmness, not due to water pressure and tension affect the deformation and fracture. The membrane is compacted as little as possible, water flux attenuation is small, to ensure a stable water production. (3) structure should be […]

Reverse osmosis membrane is a special material and processing methods made of semi-permeable membrane. It can under the action of the external pressure of some components of aqueous solution selectively through, so as to achieve dilution, purification or concentration separation purposes. Reverse osmosis phenomenon as early as 1748 by the French Able Knelt found. The […]