Viking VSH1230 and VSH200 Fire Extinguishing Systems use an electric releasing device to activate each cylinder valve, which in turn opens the extinguishing agent container to release extinguishing agent to the system. In order for the valve to open, the release device must have an electric signal from the extinguishing system. In Multi Container Systems, an electric release is used on the master cylinder only and each additional cylinder uses a pneumatic release device. The pneumatic release device is threaded onto the valve and is equipped with two connections for pneumatic pilot line(s) (or one pilot and a pilot line safety valve) to be attached via a pilot line adapter.