Usage and main markets

• Usage : Household water purifiers, Ionic Membranes, Composite filters, Bidet filters
• Main Markets: Korea, US, Japan, Europe

Features

• Hollow fiber is permanently hydrophilic or wet in water.
• High flux can be maintained by a large number of pore and hydrophilic property.
• Low fouling of fiber surface by hydrophilic property.
• Uses PES and equal distribution of AVG. 0.1_um pore size remove bacteria perfectly.

Special features of PES membranes

• PES is made of heat-resistant transparent material approved by FDA that is suitable for medical, food, infant equipment
  • Polyether Sulfone: Crystal Polymer
  • Long-term heat-resistance: 180 ~ 200°C
  • Chemical-resistant, Creep-resistant
  • Max temp endurance: 160°C
    

Specification (Bundle)

A membrane for water purifiers - Shapes

	Outside View Prominent pore distribution (numbers, size) increase the membrane longevity
	A fault plane Pore size increases from outer surface to inner surface at a regular rate
	A whole section Has High pressure resistance due to a equal thickness of membrane
	Inside View Featured hemispheric pores on inner surface lead to outstanding flow rate.

Conditions

• Room Temp.: 25°C Tap Water :
• Temp.- 25°C, Turbidity-0.203 NTU, Fe Density-0.0mg/L
• * Above data done for a lab test with a small testing module may vary from the data of an actual product.
  

Membranes used in water purifiers-Comparative analysis of SEM

Outer surface of Hollow Fiber
(# of pores on a membrane/membrane longevity/decrease rate of flow rate )

As can be seen in a SEM picture, the more pores on the surface of the membrane, the less clogging Of pores, resulting in a less decline in flow rate.

Hollow Fiber inner surface (Flow rate resistance ∝ 1/Pressure Resistance)

As can be seen in a SEM picture, special solution water gateway, on the innermost surface of the membrane, which was made secure in the manufacturing process of hollow fiber and minimized flow rate pressure will strengthen the internal pressure resistance (Less decline in flow rate under high pressure)

Hollow Fiber partial section (Flow rate resistance ∝ 1/Pressure Resistance)

As can be seen in s SEM picture, Pore size increases from outer surface to inner surface at a regular rate and it strengthens the internal pressure resistance by minimizing the flow rate of membrane entered water.