Valve safety
July 1st 2006

The new QL and GL mechanical valve interlocks from Smith Flow Control ensure potentially hazardous valve operations are performed in the correct sequence, eliminating the possibility of operator error or sabotage.

The interlocks can be integrated with any size of ball, plug, gate, butterfly and globe valve and, as they simply replace the original handwheels or levers, they are easily retro-fitted to operational plant without requiring shutdown. The fitting does not compromise the certified pressure envelope of host valves.

Fitting kits can be supplied bespoke or as universal fittings.

More articles from Smith Flow Control Ltd: