Trapped-key safety locks

Company has added bolt interlocking designs to its Eagle Valve Interlock Series, geared to securing hazard areas around plant machine. The trapped key interlocking system ensures that workers follow a predetermined sequence of operation for activating valves in a wide range of industrial operations. Eagle Valve Interlocks attach to the valve body without voiding the manufacturer’s warranty.

The new bolt interlocking options integrate with company’s standard, medium and heavy duty mechanical and electromechanical trapped key series to form a comprehensive safety scheme. With a robust oversized key that cannot be duplicated, the Eagle bolt models enable safety interlocking processes to move smoothly across a range of equipment including valves, breakers, access doors and more.

The series includes integral valve interlocks to fit nearly every type and size of quarter- and multi-turn valves. The quarter-turn version attaches to any type of lever-operated valve, including ball, butterfly and plug valves; the multi-turn attaches directly to valves including those that are gate, globe and gear-operated. Eagle interlocks are fitted to the valve without requiring a system shut-down, and installation does not compromise or invalidate pressure tests of the host valve. All series offerings are manufactured entirely of 316 stainless steel with keyways protected by a gasketed dust cover.

— Kirk Key Interlock Co., Massillon, Ohio; 800/438-2442;