1. Structure and production materials

Structure: The ultrafiltration membrane has an asymmetric microporous structure and is divided into two layers. The upper layer is a functional layer, which has the function of compact micropores and blocking macromolecules. The lower layer has a support layer with a large hole structure, which plays a role in increasing the film strength.

Materials: Generally made of polymer materials, such as cellulose acetate, cellulose acetate ester, polyethylene, polysulfone, polyamide and aromatic polymers.

 

 

Performance characteristics
 

1. Efficient desalination:  reverse osmosis membrane has efficient desalination performance, which can remove most of the salts and minerals in the water, so as to obtain pure water.
2. Pollution resistance: the membrane element is usually made of pollution-resistant materials, which can effectively resist the attachment of microorganisms, colloids and particles, reducing the cleaning frequency and maintenance costs.
3. Easy to clean: The structure of the  reverse osmosis membrane is designed for easy cleaning, and contaminants on the surface of the membrane can be easily removed by physical or chemical methods.
4. Good stability: the membrane element can still maintain stable performance under high pressure, high temperature or strong corrosive environment to ensure long-term stable operation of the system.

Performance index

The main performance indicators of reverse osmosis membranes include desalination rate, water yield (or osmotic flow rate) and recovery rate:

1.Desalination rate: refers to the ability of reverse osmosis membrane elements to remove salt from water. The desalting rate depends on the density of ultra-thin desalting layer on the surface of reverse osmosis membrane element, and the denser the desalting layer, the higher the desalting rate.

2.Water yield: refers to the water production capacity of the reverse osmosis system, that is, the amount of water passing through the reverse osmosis membrane per unit time, usually expressed in tons/hour or gallons/day. Osmotic flow rate is also an important indicator of the water production of reverse osmosis membrane elements, referring to the flow rate of liquid through the unit membrane area, usually expressed in gallons per square foot per day (GFD).

3.Recovery rate: refers to the percentage of feedwater converted into production water or permeable liquid in the reverse osmosis membrane system, depending on the inlet water quality and water requirements for pretreatment in the reverse osmosis system.

product	Effective Membrane  area ft² (m²)	Feed gasket thickness (mil)	Product flow rate ¹ ²g p d( m ³/d)	Stable desalting rate ¹(%)	Minimum desalting rate 1(%)
Pro-FR-4040F34³	82(7.6)	34	2400(9.1)	99.7	99.4
Pro-FR-8040F34³	400(37)	34	11000(41.6)	99.7	99.4

1. Product flow rate and salt removal rate are based on the following test conditions:
Influent concentration 2000 ppm (NaCl), influent pressure 225 psi (1.55 MPa), influent temperature 77°F(25°C), single film recovery of 15%.
2. Product flow range +/-15%.
3. F34 is a fiberglass wrapped housing with a mesh thickness of 34 mil, we have additional types of housing, mesh and membrane elements available.

Operating conditions:


 

Detailed Photos

Application field

Household water purification: Reverse osmosis membranes are often used in household water purifiers to provide safe and convenient drinking water for families.

Industrial pure water: In the industrial field, the membrane element is used to prepare pure water to meet the water quality requirements of various industrial production.

Seawater desalination: The use of reverse osmosis membrane technology can convert seawater into fresh water to alleviate the shortage of fresh water resources.

Wastewater treatment: In the field of wastewater treatment, the membrane element can be used to remove harmful substances in wastewater and achieve wastewater discharge or reuse.

1. Are you a trading company or a manufacturer?
A: We are a reverse osmosis membrane manufacturer with two production sites and our own automatic rolling equipment.

2. Can I take a sample? Can I place a small order before buying in bulk?
A: We are happy to offer free samples. Please contact us for your first trial order.

3. Can we OEM?
At the same time, Puri's products can be customized in sizes in addition to standard components, and we also accept OEM orders.

4. How long will it take you to place an order?
The annual production capacity of our factory is about 10 million pieces. We can deliver the goods within two weeks after confirming the order.

5. What should you be different from others?
A: We are a research and design capable factory.
B: Our quality is stable and our prices are favorable.
C:Strict internal inspection and test control.
D: Long service life, reduce costs.