Dow Membrane Element Selection Guide

LEFILTER, as the distributor of Dow membranes, and designated after-sales service centers for Dow Membrane pleated filter cartridge accessories, the company wholesales a large number of American Hydra membranes, Toray membranes, and provides water treatment consumables, water treatment accessories, filters, PP filter elements, FRP tanks, Membrane pleated filter cartridge accessories and consumables such as shells, security precision filters, etc.

Principle of reverse osmosis of Dow membrane

Since the pore size of the RO membrane is five parts per million (0.0001 micron) of the hair, it is generally invisible to the naked eye, and bacteria and viruses are 5000 times that of it. Therefore, only water molecules and some mineral ions that are beneficial to the human body can pass through. Other impurities and heavy metals are discharged from the waste water pipe, so the RO membrane is also called a high-tech artificial kidney outside the body.

The water purified by the reverse osmosis membrane contains almost no other impurities and is generally called pure water.

Advantages of Dow Membrane

Original imported, authentic guarantee, American Dow cooperative distributor; provide Dow film products, after-sales, training, installation, construction and other services; complete specifications and models to meet the needs of different fields; warranty for 3 years, providing replacement, cleaning and other services ; The original factory direct supply, the price is better.

Application range of Dow Membrane

Dow membranes are widely used in electric power, petrochemical, steel, electronics, medicine, food and beverage, municipal and environmental protection and other fields, in the desalination of seawater and brackish water, boiler feed water, industrial pure water and electronic grade ultrapure water preparation, pure drinking It plays an important role in water production, wastewater treatment and special separation processes.

Selection guide for Dow membranes:

BW30: FRP wound standard low-pressure brackish water reverse osmosis membrane element, mainly used for multiple series reverse osmosis systems with high desalination rate

BW30HR: high salt rejection rate brackish water reverse osmosis membrane element

BW30HRLE: FRP winding, high desalination rate, low energy consumption, brackish water reverse osmosis membrane element

BW30FR: Anti-pollution brackish water reverse osmosis membrane element

BW30XFR: Extremely strong anti-pollution brackish water reverse osmosis membrane element

XFRLE: Extremely strong anti-pollution low energy consumption brackish water reverse osmosis membrane element

HRLE: High desalination rate, low energy consumption, brackish water reverse osmosis membrane element

LE: Low energy consumption brackish water reverse osmosis membrane element

NF270: Nanofiltration membrane with medium desalination rate and hardness permeability, high removal of organic matter and high water production

NF90: Nanofiltration membrane with a salt removal rate of about 90%, with a high removal rate of iron, pesticides, herbicides and TOC

NF245: Nanofiltration membrane for desalination of food and dairy products

SW30: Seawater and high-salinity brackish water (subsea water) reverse osmosis membrane element

SW30HR: Standard seawater reverse osmosis membrane element with high desalination rate

SW30XHR: Seawater reverse osmosis membrane element with extremely high desalination rate

SW30HRLE: Seawater reverse osmosis membrane element with high desalination rate and low energy consumption

SW30XLE: reverse osmosis membrane element with extremely low energy consumption seawater or high-salinity brackish water (subsea seawater)


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