电磁阀

电磁阀是阀门的一种，使用电磁线圈驱动。

电磁阀的工作原理

电磁阀用于流体动力气动和液压系统，控制气缸，液压传动电机或较大的工业阀门。自动灌溉喷头系统还利用电磁阀与自动控制器。国内洗衣机和洗碗机用电磁阀来控制水进入机器。

电磁阀可用于工业应用的广泛阵列，包括一般的通断控制，校准和测试台，试验工厂控制回路，过程控制系统，和各种原始设备制造商的应用程序。

https://web.archive.org/web/20140407073548/http://www.mgacontrols.com/category/solenoid-valves/ illustrations of 2-way, 3-way, and pilot operated solenoid valves
https://web.archive.org/web/20140310224909/http://www.hnsa.org/doc/fleetsub/refrig/chap7.htm pp. 39–40. Solenoid valve illustration; breakaway pin / kick-off.
http://www.smc.eu/portal/WebContent/local/UK/Pneu_Book/Solenoid_Valves.jsp （页面存档备份，存于互联网档案馆） Skinner valve, 1930s; magnetic path issues; wear; power; number of cycles
http://www.surmaq.com/html/cata/parker/contr/skinner.pdf^{[永久失效链接]} pp. 128-131; tech details of design; different terminology; welded sleeve; valve sizing. Page 128: "Skinner Valve plunger assemblies, when appropriate, use floating top and bottom seals to enhance valve performance. Floating seals permit the plunger to generate a larger actuation force to open against the pressure differential in the valve. This enables the valve to operate at higher pressure ratings." Material has implications for shading ring: copper is satisfactory for many materials, but it is unsatisfactory for coffee and urea; silver is satisfactory for those fluids. (pp 130–131.)