RO Membrane
Your Professional RO Membrane Supplier
您的专业反渗透膜供应商
Hangzhou Puri-guard Water Treatment., Co., Ltd is one of the world's leading membrane suppliers and manufacturing all types of membrane products, like RO, NF, UF, SWRO. With more than 10 years membrane experience, we design, manufacturing and supply whatever in the home- use, commercial or industrial, and even projects.
杭州普里格德水处理有限公司是全球领先的膜供应商之一,生产各类膜产品,如 RO、NF、UF、SWRO。凭借超过 10 年的膜材经验,我们设计、制造并供应家庭用、商业或工业甚至项目所需的各种产品。
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300 GPD RO MembraneRO 300GPD for drinking water useread more
*Capacity: 300 GPD (Gallons per Day)≈ 1,135 L/day
*Model: 3012/3013 based on membrane housing
*Rejection : 95-98% based on requirement... -
RO 1812 75Puri-guard® standard household 1812-75read more
*Micro rating :~0.0001 micron *Rejection:98-98.5% for higher rejection type
(Standard testing condition: 60psi, 250ppm NaCl, 15% recovery)... -
500 GPD MembranePuri-guard® 3012-500 RO membraneread more
*light commercial/high flow residential RO
*High water flux under low pressure
*standard 3012 housing compatibility with higher rejection... -
DTRO 75-120bar 9405 Membrane ModulePuri-guard® DTRO-disc-tube reverse osmosisread more
*designed for high-salinity and high-pollution wastewater treatment
*Compare traditional RO, DTRO offer strong anti-fouling performance and... -
100 GPD ROPuri-guard® brand with high rejection 98% and standard flowread more
Model : 2012-100
available : OEM /ODM on performance and appearance includes labels and cartons design both ok -
RO Membrane 180 GPDPuri-guard® 2012-180read more
*higher flow model can produce 2012-180 /2012-200
*RO membrane with its rejection 97-98%
*Normally export to Europe and higher flow requested countries
*We... -
400 GPD RO MembranePuri-guard® 400 gpd RO membraneread more
Model supply: 3012-400 and 3013-400
This kind of residential membrane normally used in commercial water purifier and direct drinking and home water purifier. -
3012 RO MembranePuri-guard® 3012 RO membraneread more
Available model :3012-300 , 3012-400 and 3012-500,3012-600
based on different customer’s request and different area requirement, choose the right one. -
600 GPD RO MembranePuri-guard® 600 gpd RO membraneread more
*3012 or 3013 both available
*high-flow reverse osmosis filter element
*from 400GPD to 1000GPD all can supply
*Especially for Europe and some... -
B RO MembraneB grade RO membraneread more
*both domestic and industrial all available
*Domestic rejection is around 93-95% ,industrial rejection 95-98%
*Flux is ≥ A quality based on same testing...
Qualification certification
We company is a national high-tech enterprise,with a special aseptic production workshop for water purification membrane products,has passed the ISO9001、ISO14001、ISO45001 quality management system certificate,has the three-class qualification for professional contracting of environmental protection engineering,water-related approvals and other qualifications,is one of making three national standards companies.
Production Market
Area: Europe (Italy, Switzerland, Greece, Spain), Middle East, Egypt, India, Korea, Indonesia, Mexico, etc.
Rich Experience
Our factory is located in Huzhou of Zhejiang province, who has abundant experience to roll the membrane refer to domestic, commercial and industrial membrane elements more than 15 years.
OEM Service
We supply private label and custom membranes to OEMs all over the world for use in manufactured membrane systems.welcome to visit us for more detailed discuss about the quality,technical concerns,and for long term future cooperation.
RO Membrane Specifications
|
Media |
Pleated 100% PP Fiber |
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Effective membrane area ft²(㎡) |
400(37) |
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Operating pressure psi(Mpa) |
150(1.05) |
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Average yield GPD(m³/d) |
12000(45) |
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Salt rejection (%) |
99.5 |
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Recovery rate (%) |
15 |
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Max.operating pressure psi (Mpa) |
600(4.2) |
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Max.inflow temperature (℃) |
45 |
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Max.inflow SDI |
5 |
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Max.water flow GPM(m³/h) |
80(18) |
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Free chlorine concentration |
<0.1 |
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Continuous running water Ph Range |
3-10 |

Features
High Rejection Rate: Removes up to 99% of impurities like salts, heavy metals, bacteria, viruses, and pharmaceuticals.
Energy Efficiency: More efficient and less chemically intensive than distillation.
Durable Materials:
Most common are Thin Film Composite (TFC) polyamide membranes, known for efficiency and longevity, though Cellulose Acetate (CA) types exist.
Semi-Permeable<>/nav> Barrier:
Features microscopic pores that let water molecules pass but block larger contaminants, working via size, shape, and charge exclusion.
Versatility:
Used in residential purifiers, industrial process water, and seawater desalination.
Cross-Flow Operation:
Water flows across the membrane surface, not just through it, to prevent fouling (scaling/clogging).
Type
Thin-Film Composite (TFC) Membranes
Thin-film composite membranes are the most widely used and popular type of RO membranes. They consist of a thin, dense polyamide (PA) layer on top of a porous support layer.
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Cellulose Acetate (CA) Membranes
Cellulose acetate membranes were one of the first types of RO membranes developed. They consist of a cellulose-based material, a synthetic derivative of natural cellulose found in plants, coated on a non-woven fabric.
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Polyamide Thin-Film (PA-TF) Membranes
Polyamide thin-film membranes are similar to TFC membranes, but use a different type of polyamide layer. PA-TF membranes are known for their high salt rejection rates and good overall performance in RO systems.
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Fully Aromatic Polyamide (FA) Membranes
Fully aromatic polyamide membranes are a type of PA-TF membrane made from fully aromatic polyamide materials. These membranes offer higher chlorine tolerance and can be used in water with higher chlorine concentrations without degradation.
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Applications
Gas Separation:
TFC membranes can be used for gas separation applications, such as the separation of hydrogen from various gas mixtures, carbon dioxide capture, and natural gas processing.
Organic Solvent Nanofiltration:
TFC membranes are used for separating organic compounds from solvents, which is important in industries like pharmaceuticals, fine chemicals, and agrochemicals.
Hemodialysis:
TFC membranes are employed in medical applications for hemodialysis, where they separate waste products and excess ions from blood, helping to treat kidney failure.
Fuel Cells:
TFC membranes play a role in proton exchange membranes for fuel cells, enabling the transport of protons while blocking the passage of other gases and liquids.
FAQ
We are one of the most reliable ro membrane manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized ro membrane at competitive price from our factory.





