The definition of the cast iron valve is that the opening and closing member of the gate valve is the ram. The direction of movement of the ram is perpendicular to the direction of the fluid. The gate valve can only be fully open and fully closed, and cannot be adjusted and throttled. The gate has two sealing faces. The two sealing faces of the most common mode gate valves form a wedge-shaped, wedge-shaped angle with the valve.
The parameters vary, usually 50, and the temperature is 425 °C when the medium temperature is not high. The gate of the wedge gate valve can be made into a whole, called a rigid gate; it can also be made into a gate that can produce a small amount of deformation to improve its processability and compensate for the deviation of the sealing surface angle during the machining process. The board is called a resilient shutter.
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