The new CSA CYCLOPS air valve is built with a full bore and in materials such as AISI 316 stainless steel and, on request, Duplex and Super Duplex. Its exclusive anti water hammer design feature prevents rapid filling and pressure surges, while the large float located in the lower part always keeps the water away from the venting mechanism at the top. It is supplied with a filter on top as well as top venting. The full bore design ensures maximum capacity through the kinetic orifice, protecting the pipeline against the effects of vacuum caused by pipe bursts, venting and possible transients.