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7 Hole Ultra Filtration membrane buy in Petaling Jaya
Buy 7 Hole Ultra Filtration membrane
7 Hole Ultra Filtration membrane

7 Hole Ultra Filtration membrane

Code: DL-2000
In stock
Price from:
3688 MYR
  • 2400 MYR/pcs  - from 10 pcs
Malaysia, Petaling Jaya
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Technical characteristics
  • BrandDeliwater
  • Country of manufactureMalaysia

Deliwater 7 Hole Ultra Filtration membrane

Principle of Filtration

The ber for the application in water technology is a Dutch invention of Dr. Koenhen about 25 years ago and found its way as “Singlebore”

and “MultiBore” or “SevenBore” in the world markets.

PVC ber material is from Bayer AG and the spinning head to produce either of the above mentioned product names is Koenhen’s


The SevenBore membrane has been developed by Dr. Dick Koenhen who has already successfully developed the X Flow membrane

(singlebore) in the past. One of the major disadvantages of the singlebore membranes is the low strength of the membrane ber. The

ber needs careful treatment in operation to avoid too much stress, to minimize the risk that the ber would break and ltration

would fail. With the SevenBore above is not applicable as the membrane is 20 times stronger than a singlebore.

A stronger ber will enable the operator or design engineer to use a more robust cleaning method with backwash and forward ush.

Even a limited backwash pulse is possible. The strength of the ber is an important benet to use this membrane in small scale, stand

alone ltration units. It has delivered membrane elements for at least 300 installations in Europe for drinking water ltration point of

entry/use already (replacement of singlebore bers)

The ber got extra strength from the 7 capillaries which are in one ber. It has developed a special mixture of polymers and production

method to realize an open foam structure (see picture). This open structure gives the permeate water moving through the ber,

hardly any resistance. In a standard extrusion process the outside ber surface is normally closed due to the inherent production


With some added chemicals It has put extra hydroxide groups into the ber material which are realizing a more hydrophilic surface

which is benetting the water ltration. Many membrane producers are doing this with PVP, but PVP will be slowly washed out of the

membrane and the hydrophilicity and lifetime of the membrane will be reduced.


All UF lters carry a quality sticker from the Hygiene-Institut des Ruhrgebietes in Germany. In fact it is the only lter in the world which

has such a quality approval for a lter which has been tested for the Legionella bacteria. The UF lter has been developed after the

rst outbreak of the Legionella bacteria decennia ago in Holland (scan 0001 and gepruefte Qualitaet).

Strong Points

We are not only a supplier of UF lters but also of complete water treatment plants of any capacity and any water from sweet to

brackish to sea water built from foreign and/or local components. We also provide installation and regular maintenance for installed

units if so required through our associates.

Product Range


The operation of the 7 holes UF lter is based on the principal of Ultraltration. The 7 holes UF lter system is a fully automatically

self-cleaning system. The lter elements consists of a great number of hollow membranes with a pore size of 0.01μm. Compared with

a human hair the pores in the membrane wall are approximately 1600 times smaller. The active lter layer of the membrane is on the

inside of the capillary. The water is pushed through the 0.01μm pores in the wall from the inside to the outside of the membrane

whilst removing suspended solids, particles, viruses and bacteria like the Legionella bacterium out of the water. The remaining

particles on the inside of the membrane will be removed from the membrane wall via an automatic forward ush procedure

controlled by a PLC or timer and ushed to drain. This self-cleaning process makes use of the water pressure from the supply source.

The cleaning frequency and cleaning times are adjustable.

The 7 holes UF lter unit is especially designed to built-in directly in the water line behind the water meter. The unit consists of two

Ultraltration elements and will be delivered “Ready for Use”.

The system will be delivered including:

• 7 holes Ultrafiltration elements

• Manometers

• 304 Stainless Steel piping

• Water by pass valve

• Supporting framework

• 304 Stainless casing

Functions of the elements:

The 7 holes Ultralter element

Removes all water related pathogene germs and bacteria like:

• Legionella Pneumophila

• Legionella spp.

• Escherichia coli (E-coli)

• Pseudomonas aeruginosa

• Amoeba associated bacteria

• Fungi

• Mycobacterium

• Vibrio cholera

• Stretocoques

• Cryptosporidium

Please Call +6012-3790984 to order









1、 亲水性好,抗污染

2、抗拉强度高(可达到14-15 N左右,一般单孔膜为3-6 N),柔韧性好(断裂伸长率达65% 左右,一般


3、过滤精度高,出水水质好。按照10纳米(0.01 微米)规格打造,膜孔均匀,产水浊度<0.02NTU、。



























Please Call +6012-3790984 to order

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