STOP-START DEVICE OF GAS FIRE EXTINGUISHING PLANT AND ACCESSORY TO CONTROL ITS SERVICEABILITY Russian patent published in 2011 - IPC A62C37/08 

FIELD: fire-prevention facilities.

SUBSTANCE: stop-start device comprises vessel with discharge chamber in inlet nozzle and drencher chamber in outlet nozzles, and also stop valve. Device is arranged with the possibility to install accessory to control movement of stop valve as discharge chamber of inlet nozzle of vessel is connected to cavity of gas cylinder under pressure that exceeds atmospheric pressure. Stop valve is made in the form of sleeve, having side cylindrical wall and wall of bottom, on external surface of which there is a dead hole with inner thread. Accessory to control serviceability of stop-start device relates to area of facilities intended to produce alarms about operation of valves. Accessory includes rod with external thread on one end for connection to stop valve.

EFFECT: reduced losses of fire-extinguishing gas when inspecting serviceability of stop valve in process of operation in composition of gas fire extinguishing plant.

10 cl, 4 dwg