VITON GASKET- Viton is a space age material that is very chemically inert. As such, it is commonly used with gasoline, kerosine and other organic solvents. Some companies sell solenoid valves with NBR gasket and advertise gasoline use. DO NOT USE NBR gasket for gasoline (it will corrode the gasket and can cause serious gasoline leak and accident or fire). If you intend on using a valve for gasoline, use only VITON gasket. | Working temperature range: -5℃-150℃ . ISO/OEM/ODM/CE and1 year warranty. | -NEW- Re-engineered low power coil with up to 50% less heat generation. The valve starts as 19W and as it heat up to operating temperature power reduces to approx. 10-13W. | 3/4" NPT (USA National Pipe Thread). Commonly used standard pipe thread in US.. | DIRECT ACTING and Normally Closed Valve (N.C.) - The solenoid’s magnetic field with directly moves the plunger and close the orifice for any fluid or gas flow. Only opens while energized.