Stainless steel insulation water tank pure water equipment
2022-06-08

Stainless steel insulated water tank pure water equipment, now the standard stainless steel insulated water tank pure water machine is generally five-level configuration: 5μmPP cotton - granular activated carbon - 1μmPP cotton - RO membrane - post activated carbon. There are also some manufacturers whose third-stage configuration is changed to block compressed activated carbon or sintered activated carbon CTO. Is the third-stage filter element more suitable for 1μmPP cotton or block compressed activated carbon?
As we all know, the first three-stage filtration of the stainless steel thermal insulation water tank serves the RO membrane. As the pretreatment of raw water, it is designed to increase the service life of the RO membrane. Then the first filter element of the RO membrane of the stainless steel thermal insulation water tank pure water machine is still 1μmPP cotton. Better. There are three reasons:
1. If the third stage of the stainless steel heat preservation water tank is block compressed activated carbon or sintered activated carbon CTO, three of the five stages of filtration are activated carbon, and the activated carbon filter element is reused, which not only wastes resources, but also increases costs and loses its due Not worth the effort.
The filtration accuracy of 2.1μm PP cotton is 1 micron, and bacteria, sediment particles, rust and other harmful substances larger than 1μm can be removed as much as possible. When the first 5μm filter element loses its function, it can still protect the RO membrane and reduce the impact of the RO membrane. probability of contamination.
3. The stainless steel heat preservation water tank can effectively prevent the activated carbon powder from entering the inside of the RO membrane, protect the RO membrane and minimize the entry of the activated carbon powder and prolong its service life. Because before installing the activated carbon filter element, no matter how clean it is, there will be carbon powder flowing out. Installing a 1μm filter element before the RO membrane can act as a barrier, greatly reducing the possibility of artificial pollution of the RO membrane.
The second stage is generally granular activated carbon. The stainless steel insulation water tank needs to be flushed when it is installed, which often causes a lot of black water, and it is easy to be washed out. If it is changed to compressed activated carbon black water, the problem will be solved, and the burden of the third-level PP cotton will not be increased.