The Viking Float Check Valve Assembly is utilized in Dry Pipe systems with Model E Accelerator, HP Dry Systems, EZ Trim riser mounted and TotalPac2, Double interlock Preaction both Electric/Pneumatic and Pneumatic/Pneumatic Systems. The Float Check Valve assembly protects pneumatic devices from water columning and reset due to system pressure. The Float Check Valve Assembly is designed to allow air to pass both directions for system set up and sensing during supervision and operation of sprinkler system.