Improved fire safety for control systems

摘要

FireChekthermal shutoffs (FIG. 2) with resettable memory shape alloy can be used to automatically shut down a pneumatic control system when a nearby fire occurs, or when the ambient temperature reaches 135°F, 150°F or 165°F. The testability and reset ability of the FireChek shutoff gives it an advantage over emergency isolation valves that rely on fusible links or plastic burn-through tubing.