Gas emergency shut off solenoid valves,it can be connected with gas leaking detector, ... gas2.Body:wrought Brass alloy(can select wrought aluminum alloy)3.SealingMaterial:NBRruber4.Operation temp.:-10 - +50 degree Celsius5.Pressure ... Max:50kpa.6.Connection:G1/2(DN15),G3/4(DN20),G1(DN25),female thread7.Turn on ... a white box,50pcs in a carton16.CE certificate Solenoid Valve