Per UL 60335-2-89, safety shut-off valves are required to perform this isolation. The Solenoid Shut-Off Valve (SSOV) and the Check Shut-Off Valve (CSOV) were specifically designed to meet the criteria ...

Emerson has introduced the new ASCO Series 148/149 safety valve and motorized actuator designed for industrial fuel oil burner recirculation and safety shutoff applications. The new series provides a ...