Forged steel gate valve opening and closing member is the gate, the movement direction of the gate is perpendicular to the direction of the fluid, forged steel gate valve can only be fully open and fully closed, can not be used for regulating and throttling. Forged steel gate valve gate has two sealing surfaces, the most commonly used mode gate valve two sealing surfaces to form a wedge, wedge angle with the valve parameters and different. Forged steel gate valve drive: manual, pneumatic, electric, gas-liquid linkage. Gate valve according to material: cast iron gate valve, ductile iron gate valve, stainless steel gate valve, forged steel gate valve.