Waircom valves and solenoid valves have been created according to different production philosophies in order to adapt to the different contexts in which they could be used. Thus, together with the historical poppet valves, have been manufactured throughout the ages different families of valves with spool construction, to be used individually, in manifold mounting or with multi-pin plug connector. Even some series of this chapter comply with the international reference standards, and beside these, as usual we present a range of valves completely designed by ourselves, in according to the market needs. It’s important to remember that some series of this valves can create the vacuum or work with this ﬂuid, so that we can cover another share of the industrial market. Finally, even for the items belonging to this family exist some accessories like bases, coils, connectors and cables.