API600 Gate Valve,Cast Steel Gate Valve,Swing Check Valves is suitable for various pipes of Class150 ～ Class2500, PN16 ～ PN420, JIS 10K ～ JIS 160K, applicable temperature: -196 ～ 420 ℃, used to cut off or connect the medium in the pipeline. Material can be used for supporting equipments such as water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea, etc. It is widely used in petroleum refining, long-distance pipeline, chemical industry, papermaking, pharmaceutical, water conservancy, electric power, municipal , Steel and other fields. Cast steel globe valve is driven by worm gear, manual, pneumatic or electric. Fixed ball valves are generally connected by flanges, but also by butt welding.