The opening and closing parts of the J41H, J41Y, J41W national standard stainless steel globe valves are cylindrical flaps, the sealing surface is flat or conical, and the flaps move linearly along the center line of the fluid. The national standard cut-off valve is only suitable for full opening and full closing. It is generally not used to adjust the flow rate. It is allowed to be adjusted and throttled when customized.
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