Forged steel gate valve can be operated by gearbox, electric actuator or pneumatic actuator which have more advantages than casted steel gate valve, such as more uniform structure, dimensional&metallurgical uniformity. Quallity forgings from qualified foundry can meet the special requirements of high temperature and high pressure industry pipeline in thermal & cogeneration power plant, nuclear power plant, chemical, petrochemical and other precess applications as ell as marine& navy. Valve material can cover carbon steel, alloy steel, special steel, such as A105,F11,F22,F91,F92,WB36, CrMoV steel etc.