Drinking water pretreatment of hollow fiber inside-out uf membrane

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$1,100.00 - $1,300.00 / Pieces | 10 Piece/Pieces (Min. Order)
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Quick Details
Place of Origin:
Beijing, China
Brand Name:
Model Number:
Active membrane area(m2):
Module size(mm):
Diameter 250 * length 1715
Filtration pore size(um):
Capillary ID/OD(mm):
Housing/Cap material:
Supply Ability
Supply Ability:
120000 Square Meter/Square Meters per Month
Packaging & Delivery
Packaging Details
Beijing Port, Tianjin Port,Shanghai port
Lead Time :
2 weeks after receipt of the payment

Product Profile

Canpure Inside-out UF membrane features strong

anti-fouling capacity, high capillary strength and 

highfiltration accuracy. And it is characterized by 

high adaptability to varieties of raw water quality, 

easy operation and maintenance,and can produce 

water with stable and reliable quality.

Product Features

Permanent hydrophilic property

Canpure Inside-out UF membrane is made from modified polysulfone (mPS) material, and treated by cross-

linking hydrophilic composition. The consolidation of the hydrophilic groups endows the permanent 

hydrophilic property of the capillary, more stable product water flux, improved anti-fouling property and 

better cleaning recovery.

MWCO: 45,000 Dalton

Among the similar products in the market, Canpure Inside-out UF membrane has the smallest Molecular 

Weight Cut Off (MWCO) and the highest filtration accuracy, which can effectively ensure the quality of the 

water produced by ultrafiltration.

Unique cross-section structure of the capillary

On the both sides of Canpure Inside-out UF capillary are dense sponge-like

structures, and in the middle is the finger-like structure, which both ensures the

capillary strength and rather high permeability.

High strength and large flux

Canpure Inside-out UF membrane has a capillary strength of 8 Mpa, and a standard

produced water flux of 450L/m2•h (1 bar at 25℃).

Larger capillary diameter

Canpure Inside-out Capillary has a common capillary ID of 1.2mm and the water

entry channel has a cross-section area 2.25 times of the common diameter (0.8mm),

which significantly improves the anti-fouling capacity of the membrane modules.

Integrated bundles of fibers / patented technology/

Membrane capillaries in Canpure Inside-out UF membrane module are evenly

distributed inside the module by integrating 18 sub-bundles.

Soft Potting /patented technology /

The soft potting technique invented by Canpure realizes the flexible connection

between the “root” of the capillaries and the soft layer of the potting material, and

thus prevents the breaks of the roots of the capillaries.

Product Description


Active membrane area:68㎡

Module size:φ250*2215

Membrane material:mPS


Active membrane area:50㎡
Module size:φ250*1715
Membrane material:mPS


Active membrane area:50㎡
Module size:φ250*1715
Membrane material:mPS

Clean in place chemical cleaning

Periodically backwashing the membrane can remove most of the fouling matters, but sooner or later, the 

membrane may need chemical cleaning. At designed flow rate, when trans-membrane pressure (TMP) is 

higher than 0.15 MPa, and that cannot be reduced by CEB, a chemical cleaning in necessary. A Clean-In-

Place (CIP) system should be installed with the UF system to facilitate chemical cleaning process.

The cleaning formulation may be selected according to the fouling matters and the operation experience. 

The followings may be considered:

1) A HCl solution at pH=2;

2) A caustic mixture solution of 0.4% NaOH with 2000ppm NaClO at pH≤13;

3) Choose surfactant based on the feed water quality.

Notes: 1) Check the pH value with meter and avoid big error caused by the test paper.

2) Avoid the HCl and NaClO to contact each other during cleaning.

The procedures are as following:

1) Record the operating parameters before CIP chemical cleaning.

2) Open the CIP feed valve and the CIP concentrate recycle valve, circulate the chemical solution for 

30minutes by turning the circulation pump on.

3) Check the pH of the solution, if there is a significant change, add appropriate chemical to resume the 

chemical concentration. Circulate the solution for another 30 minutes.

4) Repeat step 2 until there is no significant pH change. Change the cleaning solution if it gets too dirty or 

too much chemical is added.

5) Stop the circulation pump and let the membrane soaked in the solution for 30 minutes.

6) Close the CIP concentrate recycle valve and open the CIP permeate recycle valve, circulate the chemical 

solution for 30minutes by turning the circulation pump on.

7) Repeat steps 2-4.

8) Drain the solution tank. And run the system by directing permeate to drain until the pH of permeate is 


9) Record the operating parameters after chemical cleaning.

Compare the parameters before and after chemical cleaning, if the system is not resumed to its normal 

operation conditions, consider using another cleaning formulation, or call membrane factory for further 

solutions. Make sure the feed pressure of CIP is lower than 0.08Mpa.

Company Information

Q1. What about the lead time?

A:About 1-2 weeks after payment 

Q2. Do you have any MOQ limit for led light order?

A: Low MOQ, 1pc is available

Q3. How do you ship the goods and how long does it take to arrive?

A: We usually ship by DHL, UPS, FedEx or TNT. Sea shipping also optional.

Q4: Do you offer guarantee for the products?

A: Yes, we offer 2-3 years warranty to our products.

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