Category Archives: Interlocks

How to interlock a butterfly valve

butterfly valve interlock

If you use butterfly valves on critical processes, ensuring the valves are operated in the correct sequence can be achieved by adding an Alcatraz valve interlock from Valtorx. Butterfly valves above 6” (DN150) often have a gearbox fitted to reduce the turning effort. For these valves, a multi-turn interlock is required. For butterfly valves below […]

Prevent chemical or fuel spillages entering the water course

drain valve interlock

The transfer of chemicals or fuels at water treatment plants must be completed with care to ensure that any accidental spillages don’t run away and enter the water course. A safety interlock system from Total Lockout can safeguard against this risk. Most plants will have a spillage capture bund already built in at the location […]