Triple Eccentric Flange Butterfly Valve
The triple eccentric flange butterfly valvehas three eccentricities. The first eccentric shaft deviates from the center line of the sealing surface, the second eccentric shaft deviates from the center line of the pipeline and the valve, and the third is the angle between the unique eccentric valve seat and the center of the pipeline. In this way, the valve seat and the sealing ring are completely separated during the entire switching process.
Main Features
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Key Features |
Anti-blow-out stem design – safe & reliable. Stem position indicator + top mounting flange for easy position feedback.Torque-sealed construction guarantees sustained bi-directional zero-leakage performance. |
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Connection Ends |
Flanged (FLG) |
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Operation |
Lever, Gear, Electric, Pneumatic, etc. |
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Main Materials |
WCB, 304, 316, CF8, CF8M, 2205, Alloy 20, … |
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Sealing Materials |
Soft seat (EPDM, NBR, PTFE, …) or Metal-to-Metal |
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Applications |
Solvents, acids, water, natural gas and other severe / demanding services |
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Design & Manufacture |
API 609 |
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Face-to-Face |
API 609 / ASME B16.10 |
Butterfly ValveAdvantage
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