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Triple Eccentric Butterfly Valve
For the structure of the triple-eccentricity seal butterfly valve, when the valve is under the complete open state, its butterfly plate sealing face will break away from the valve seat sealing face completely; when it is opened from 0 to 90°, the butterfly plate sealing face will break away from the valve seat sealing face upon opening; when it is closed from 90° to 0°, and only upon closing, the butterfly plate sealing face can contact and press onto the valve seat sealing face tightly.
Design Features
Design standard as per: API 609, ASME B16.34, GB/T12238, JB/T 8527.
Small installation space, light weight, and maintenance friendly;
Good sealing effect and long service life;
Simple structure and small opening/closing torque;
Good flow adjusting ability, high precision of flow characteristic curve and good dynamic adjustment stability;
For soft seat the leakage rate: ANSI B 16.104
Product Range
Body material: carbon steel, stainless steel, alloy steel
Nominal diameter: 2"～180"（DN50~DN4500）
Pressure range:Class150～600（PN10~PN100）
End connection: RF, RTJ
Working temperature:-46℃～+200℃
Operation : wrench, worm gear, electric, etc.
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