国内外的2W水用黄铜、不锈钢电磁阀从原理上分为三大类（即：直动式、分步直动式、先导式），而从阀瓣结构和材料上的不同与原理上的区别又分为六个分支小类（直动膜片结构、分步重片结构、先导膜式结构、直动活塞结构、分步直动活塞结构、先导活塞结构)，按照气路数分为2位2通，2位3通，2位4通，2位5通。2W water brass, stainless steel solenoid valves are suitable for water or liquid as the working medium, can be automated controls or protozoa control of water, oil, liquids and other working medium pipe off. 2W water brass, stainless steel solenoid valve As the rubber seal, so the cleaning medium is greatly reduced, with open and close rapidly, reliability, and other characteristics.

Valve Co., Ltd. Shanghai Zhi wide water solenoid valve works as follows: the open water for the second pilot valve solenoid valve, the structure is dominated by the pilot valve and the main valve solenoid valve, the main valve with rubber seal structure. Chang position, the movable core sealed pilot valve port, valve chamber pressure balance, closing the main valve port. When the coil is energized, the electromagnetic force generated on the active core pull, the main valve cavity medium leakage from the pilot valve port, as well as a pressure differential, diaphragm or valve cup was quickly lifted, opening the main valve to open, the valve will show passage of the. When the coil power, the magnetic field disappeared, moving core reset, closing the pilot valve opening, after the pilot valve and the main valve cavity pressure balance valve and was closed.