UniTorq News Feeds http://www.unitorq.com/ UniTorq has received SIL3 Certification for it's line of pneumatic rack and pinion actuators to IEC 61508 and IEC 61511. Both single and double acting were tested in report R IS 182065-01 -Rev. 1 dated 6-10-2008 by TUV Italia, Srl. http://www.unitorq.com/News-more-3.html