SFC valve interlock systems control the sequence in which process equipment is accessed and operated to eliminate human error and dangers if equipment is incorrectly executed or in unsafe conditions.
Single or dual-keyed mechanical locking devices use a ‘key transfer’ principle to ensure operational control of safety-critical systems involving worker intervention. They fit all types of lever-operated quarter-turn or handwheel-operated valves. Pigtrap/pressure types also adapt to vessels or access closures.
Smith Flow Control USA
1390 Donaldson Road, Suite E, Erlanger KY 41018