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The soft sealing Non rising stem gate valve adopts the straight through flow channel design, and the high-performance rubber is fully covered with the gate, so the sealing is reliable and the operation is easy. It is mainly used in domestic water system, water supply and drainage system, sewage treatment system, etc. it is used as a cut-off device on the fluid transmission pipeline of construction, urban environmental protection, petrochemical, electric power and other industries (not applicable to throttling).