Wuxi Efel fluid intelligent instrument co., Ltd. as a fluid global supplier of intelligent control instruments, specializing in the production and sale of valve limit switch (back), discrete valve controller and valve positioner. the company according to international standards such as ISO9001:2008,ISO5211,NAMUR,DN3337,IP and 94/9/EC OF 23 MARCH,EN13980,EN60079-0:2006 EN60079-1:2004 EU manufacturing practices, using international advanced design technology of industrial art and patent technologies with independent intellectual property rights, combined with the site requirements for control valves, Carefully crafted the ALS family limit switches (valve), ACS series of discrete, ALP series mechanical valve controller locator and ALHVP series of intelligent Positioners and other high-end intelligent control instrument. more than 10 years, the company was awarded many national patents, unique technology filled the domestic blank.2008 years, the company's quality system and explosion-proof products both received international certification of ATEX and IECEx certificates. 85% company products are exported to international markets, become more top international fluid control systems into specified products.

as the domestic valve position indication and positioning control technology, recognized leader. ALS-series valve limit switch (back), ACS valve controllers, ALP discrete series mechanical valve positioner and ALHVP series of intelligent valve positioner, with unparalleled reliability, ease of installation and maintenance of the characteristics, absolute price/performance, delivers maximum value for the end user. carefully selection of corrosion-resistant materials, explosion protection scope and precision machining, the top international acquisition of explosion-proof certification, ALS,ACS and other products became the most ideal choice for harsh environment.