| 摘要 |
PURPOSE:To minimize damage caused by discharging water after the subduing of a fire by stopping the discharging of water as the temperature lowers with the subduing of the fire. CONSTITUTION:A main valve 8 and a pilot valve 12 which is opened with an actuator 20 as a specified temperature is exceeded are arranged. A fire breaks out and when the specified temperature is exceeded, an actuator 20 makes the pilot valve open and the main valve is opened to discharge water. With the discharging of water, the fire is subdued and as the temperature lowers, the pilot valve is closed leading to the closing of the main valve to stop the discharging of water. |
