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Outside In Flow Configuration
Apore diameter of U-flow PES hollow fiber membrane is only 0.03 micron and those tiny evenly spread on the whole structure so that it can remove bacteria, viruses and microorganism from water.

PES Hollow Fiber Membrane
Distinction U-Flow 0406-OP U-Flow 0850-OP
Diameter (out/in) μm 1,200 / 700 1,500 / 900
Intensity* gf/filla 750 850
Flow (ultra-Pure Water℃) LMH 2,000 2,000
Pore Diameter ** μm 0.03 0.03
Escherichia coli Detected/Absent Absent Absent
SDI   < 2 < 2
Turbidity NTU < 0.05 < 0.05
* Test Instron 5564 Tester : Speed 2000 mm/min , Distance 100mm.
* ASTM-F316-03 Water Test Norm : PMI Bubble Test Method.

U-Flow Membrane Module
Distinction U-Flow 0406-OP U-Flow 0850-OP
Dimension mm 90*L1,150 225*L1,860
Effective Membrane Area m2 6 52
Material Potting Urethane Urethane
Housing PVC PVC
Suggested Flow LPH 30~60
Maximum Pressure kgf/cm2 3 3
Operating Temperature ℃  5-40 5-40
pH Range pH 2-12.5 2-12.5

Appearance and Characteristics

The pore diameter of U-Flow Hollow Fiber Membrane are gradually increasing from outer layer to internal layer , and become asymmetric structure which is in favor of dcreasing filter drag. U-Flow Hollow Fiber Membrane possesses alkalinity-resistant and acidity-resistant abilities and high performance makes it outstand from other competitors.

Feature Comparison Of External and Intemal Pressure Type Membrane.

External Pressure Type U-Flow Hollow Fiber Membrane is superior regular intenal Pressure Type.

  External Intemal
Water Consumption of Cleaning less*(1) more*(4)
Consumption of Operating Energy less*(1) more*(4)
Air Wash suitable


Carrying Capacity high*(3) low*(4)

Pore Size and Distribution

The pore size of External Pressure Type U-Flow PES Hollow Fiber Membrane is small,and the rejection effect is great.


U-Flow PES is superior to PVDF Hollow Fiber Chemical-tolerant area.

U-Flow Module Technology

U-Flow series of Membrane uses progressive technology and unique design to lower producing cost and to develop those membranes which can be operated under pressure 0.5kg f/cm2

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