What is a gas cut-off solenoid valve? Working principle of gas cut-off solenoid valve

What is a gas cut-off solenoid valve? Gas emergency cut-off solenoid valve is a safety emergency cut-off device for gas pipelines. It can be connected to the gas leakage alarm system or to fire protection and other intelligent alarm control terminal modules to achieve on-site or remote automatic/manual emergency cut off of the gas source to ensure gas safety. When harmful strong vibration occurs, the solenoid valve will automatically close. Opening the valve requires manual intervention and manual opening, which meets safety management regulations and meets accident handling characteristics. Gas cut-off solenoid valve structural size specifications A (mm) B (mm) C (mm) D (mm) DN15A642889103 Gas cut-off solenoid valve main technical parameters ◆ Applicable gases: natural gas;petroleum liquefied gas;artificial gas, etc. ◆ Valve closing method: DC Pulse drive / manual 9-1)                                                                         Drive current: <2A (pulse) ◆    Sealing material: NBR rubber Time: less than 1 second ◆ Working environment temperature: -10℃～+50℃ ◆ Explosion-proof type: Casting type ◆ Maximum working pressure: 5kPa ◆ Explosion-proof mark: Exm◆T6◆ Connection method: G1/2”(DN15A)/G3/4” (DN20A) ◆ Outlet length: 0.4 meters ◆ Valve opening method: manual reset