Simple analysis of the classification of the manual valve of the flapper valve. Simple analysis of the flapper valve. The manual spiral gate valve is usually used in the unloader. The diameter of the manual screw gate valve is matched with the feeder inlet. There are square and round. Two shapes. The opening and closing member of the manual gate valve is a gate. The direction of movement of the gate 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 shape. The wedge angle varies with the valve parameters. When the medium temperature is not high, the fiber felt is sealed.
The manual screw gate valve can be made into a whole body, called a rigid gate; the gate of the manual screw gate valve can also be made into a gate that can produce a slight deformation to improve the processability and make up for the angle of the sealing surface during the processing. Deviation, this kind of ram is called elastic ram.
The selection of the manual screw gate valve needs to be selected according to its working conditions. The selection method is mainly based on the selection temperature and drive selection of the manual screw gate valve.
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