Reverse Osmosis is the penetration of a reverse migration of a pressure-driven Interception separated from the solution of the solute and solvent by means of the choice of the semi-permeable membrane separation method, its diameter is approximately in five ~ 10A. It has been widely used in various liquid purification and concentration of one of the most common application instance is in the water treatment process, using reverse osmosis technology to the original water, inorganic ions, bacteria, viruses, organic and colloidal impurities removal in order to obtain high-quality pure water. Currently the most widely used roll polyamide composite membrane, water flux and removal efficiency will be affected by pressure, temperature, recovery rate, water the effects of salinity and pH values. 
 Characteristics of the equipment 

 An original tank liquid level protection features: such as pure water tank of pure water more than the high level, the controller disables the replenishment. Such as the level dropped to restart pay 
 Anhydrous protection features: such as raw water without water, the controller shut down the whole RO system to prevent the pump empty pumping. Such as water recovery to automatically restart the system. 
 The pure water tank level protection features: such as pure water tank of pure water more than the high-level controller to shut down the whole RO system. Such as the level dropped to restart the system. Interlocking of two water tanks. 
 (4) low-voltage protection function: If the low pressure is insufficient to close the entire RO system 
 (5) high-voltage protection function: such as high pressure overpressure, the controller shut down the whole RO system