The professional term for pure water equipment is reverse osmosis equipment, which utilizes the principle of osmosis to produce purified water or pure water. Reverse osmosis is a membrane separation technology that forces the solvent (water) from the feed solution to permeate through the membrane to the other side. Substances such as ions, organic matter, bacteria, and viruses are retained on the feed side of the membrane and then discharged with the concentrated stream, thereby achieving the separation of water from other substances in the water. Reverse osmosis (RO) equipment produces water of very high purity. In industrial production, it is often used for raw water desalination to produce pure water, purified water, etc. The reverse osmosis process is commonly used to produce pure water, purified water, and ultrapure water, involving industries such as chemicals, coal power, circulating cooling, electronics, electroplating, metallurgy, boiler feed water, domestic drinking water, biotechnology, nuclear power, food processing, and more.

Reverse osmosis equipment, also known as high-filtration equipment, is the reverse process of natural osmosis. The driving force is pressure difference. This membrane separation technology works by applying pressure higher than the osmotic pressure to the solution to be separated, forcing the solvent (water) from the feed solution to permeate through the membrane to the other side. Substances such as ions, organic matter, bacteria, and viruses are retained on the feed side of the membrane and then discharged with the concentrated stream, thereby achieving separation and purification. Reverse osmosis (RO) equipment has a very high filtration precision. It can filter out almost all substances except water molecules, including microorganisms, bacteria, and metal ions. The purity of the produced water is extremely high, second only to distilled water. Its technical characteristics include no phase change, low energy consumption, compact structure, simple operation, easy maintenance, and no environmental pollution. Reverse osmosis processes are applied to different raw water sources and are classified into seawater desalination membranes, anti-fouling high-pressure membranes, and low-pressure membranes.