FOX 3F SUB

Combination air valve - Version for submerged applications

The water tight CSA SUB system has been designed for the air flow conveyance through a threaded exhaust elbow, mainly used for locations exposed to the risk of flooding and whenever the spray effect during closures and possible leakage through the air valve can’t be tolerated. The regulation device SUB is also available as a separate component applicable to any existing CSA air valves except for the EO and IO series. User is advised that, when using SUB model, the air capacity is likely be reduced, compared to the standard version is going to be assembled on, due to the increased head losses. The resulting air flow charts are listed in the technical data sheet.