YUASA Hollow Fiber Membrane Filter uses a polysulfone membrane, which is characterized by excellent filtration performance and heat and chemical resistance. This helps to achieve high precision filtration,at 0.04, 0.1, 0.2, 0.45 and 0.8 μm.
Yuasa's membrane filtration technology is used in many different applications because of the commercialization of cartridge filters using hollow fiber membrane filters for polysulfone, which is compatible with severe conditions for separation and refinement, namely the efficient filtration of fluid containing 0.04 - 0.8 micrometer fine particles. This area is regarded as a boundary between precision filtration and ultrafiltration. This is an area of high precision filtration.
YUASA Hollow Fiber Membrane Filter has high porosity and allows for a large membrane area. Therefore it has a very high level of filtration capability. It also excels in heat and chemical resistance.
A filtration system can be designed with the use of YUASA Hollow Fiber Membrane Filters.
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A study was conducted with the use of pseudomonas and serratia bacteria as an example of high precision filtration.
As demonstrated by the analysis results, the YUASA Hollow Fiber Membrane Filters：
|Pore size of
a hollow fiber membrane
|Test bacteria||Challenge bacteria
|Viable bacteria count
|Hi-ochi Lactic acid bacteria||0.5〜0.6||3.0〜4.0|
|Effective membrane area
|Bacteria/particle elimination performance
LRV (particle/indicator bacteria)
|Operating pH region
(Autoclave: 121 °C x 60 minutes)
|>12 Latex partpcle (diameter 0.042μm)||2-14|
|YHF−10||0.1||>12 Latex partpcle (diameter 0.109μm)|
|YHF−20||0.2||>9 Brevundimonas diminuta|
|YHF−45||0.45||>11 Serratie marceScen|
Pressure and heat resistance of the hollow fiber membrane filter depend on the condition of use.
|F||Double open end（flat gasket）|