[b]1.PCF Filter (Pore Control Fiber)[b]
Non-woven fine fibers wrapped around the perforated pipe are squeezed,
After filtration, relax it and increase the pore size,
(PCF) filter with a pressure-type fiber filter.
And the reverse filter function is applied to the cartridge filter.
Flexible fiber bundles surrounding the perforated cylindrical
strainer are pulled up to form fine pores at filtration step and
they are released to form rough pore for easy and intensive
backwash. Its name is PCF(Pore Control Fiber) Filter that
is the cartridge filter having backwashing function.