/community-hubs/fluid-control-pneumatics/b/fluid-control-pneumatics-blog/posts/exercising-solenoid-valves-in-safety-applicationsJoe McHugh Valves used in safety applications tend to stay in opened or closed positions for very long, time intervals. As Emerson’s Joe McHugh explained in a Plant Engineering article, Double up on solenoid safety : …all valves experience stictionen-USTelligent Community 13