... the gas pipe. contacting with gas detector for working. gas valve, gas solenoid valves, valves Gas emergency shut off solenoid valvesTechnical DataSuitable gas types: town gas ... -24V Sealing material:NBR rubber -Close time :<1secOperation temperature:-10~50C Explosion proof mark:Exmb ||T4Pressure max :100kpaLead wire ... :G1/2",G3/4",G1"Turn on :manual. gas emergency shut off solenoid valves