It is mostly used for medium and low-pressure medium and large-diameter pipelines, especially for large-diameter pipelines. The opening and closing torque of butterfly valve is small, the fluid resistance is small, and it has a certain capacity of flow regulation, and the flow direction is generally not restricted. The center of rotation of the butterfly plate is located on the centerline of the valve body and passes through the center of the sealing surface of the valve seat. It can be sealed in two directions, the butterfly plate is fully streamlined with small flow resistance, and the valve seat can usually be replaced.
Dimensions | DN40~N3200 (NPS1-1/2~NPS 128) |
Pressure class | PN6~PN25 (CL150) |
Body materials | Cast iron, carbon steel, stainless steel, etc. |
Connection methods | Flange type, wafer type |
Drive modes | Manual, electric, pneumatic, pneumatic-hydraulic, etc. |
Applications | Fossil energy, electric power, chemical industry, pharmaceutical and other industries |
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