One of the most common and costly drawbacks when using air valves is the jamming and subsequent filling of them and their supply channels. This problem results in long machine downtimes and hours of work to restore the mould. With the safety shut-off valve, the filling problem is permanently excluded and only routine maintenance may be required to ensure maximum efficiency. The safe shut-off valve is an air valve that complements the range of valves in the catalogue such as the conical valve and needle valves