3 way valve and stop/check valve LOTO
3 way valve and stop/check valve LOTO
(OP)
I am looking for some input on how others perform LOTO on Hansen 3-way valves and Vilter stop/check valves. The valve stem is all there is and is acceptable to drill the stem to attach a locking device? Or, does the operator put the valve in the closed position and put one of those external devices that clamp onto the piping? Any other means of LOTO?





RE: 3 way valve and stop/check valve LOTO
Be careful in selection of any device, keeping in mind how the valve is to used. One way we do this is to chain the operating handle or wheel, either in the opened or closed position.