Netherlocks has launched the SHL – the company’s new Smart Handwheel Lock. The key transfer lock can be fitted like a simple Lock-Out device to any size or type of handwheel-operated valve. No valve details, extra parts or customised adaptors are needed, and it locks the wheel into pre-set, safe positions controlled by the interlocking key release mechanism. The SHL attaches onto the valve stem underneath the wheel without replacing or altering any part of the valve assembly. No specially machined parts are needed, and the design that attaches the lock to the handwheel still leaves space to grip it. This allows for interlocking of the handwheel valves: no specific valve information is required, no machined adaptors or mounting brackets are needed, and the lock can be fitted whilst the valve is still operational. Interlocks minimise the danger caused by the potential for human error: they prevent the valve from being operated until it is safe to do so. The coded key to unlock the valve is only released for use once the correct sequence of precautions has been completed, with each stage of the process enabled only once the previous one is finished. This physically prevents accidental and potentially dangerous actions from being performed, negating the risk of human error.
