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American standard three eccentric worm gear transmission butt welded butterfly valve
This product has a vertical plate structure, welded connection, and features bi-directional sealing with zero leakage and low torque. Its eccentric de
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Product Structure Diagram
scope of application
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Design standards
Design and Manufacturing: API 609；
Flange end size: ISO 5052 Series 13；
Temperature and pressure rating: ASME B16.34；
Welding end size: ASME B16.25；
Inspection and Testing: API598。
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