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What are the main differences between Shanghai gate valves and fluorine-lined butterfly valves?
Among the types of sealing materials for valves, there are many types of pneumatic valve products, but there are many types of sealing materials in their products. Generally speaking, they can be divided into hard seals and soft seals. Divided into a variety of seals, such as alloy steel seals, copper alloy seals, etc. are hard seals, while fluorine-lined, rubber, rubber-lined, plastic, etc. are all in the soft seal category. The definition and type of two seals are introduced. Fluorine-lined butterfly valves are used to control non-corrosive or general corrosive and highly corrosive media. The inner surface of the valve body is not lined or covered with a variety of optional rubbers, which is suitable for various working temperatures and fluid pipelines.
Working principle of manual gate valve: Turn the handwheel to advance or retreat the thread of the handwheel and the valve stem, and lift or lower the valve plate connected to the valve stem to achieve the function of opening and closing.
Gate valve has low flow resistance. The medium channel inside the valve body is straight through, the medium flows in a straight line, and the flow resistance is small. Gate valve saves effort when opening and closing. Compared with the shut-off valve, whether it is open or closed, the direction of movement of the shutter is perpendicular to the direction of medium flow.
(Responsible editor: ISF)