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The metal head butterfly valve
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The metal head butterfly valve

Author:stvalve Source:Original Date:2011-11-08 15:30:24 Popularity: Label:The metal head butterfly valve

The metal head butterfly valve

MAIN FEATURES:
Metal to metal sealing   the triple-eccentricity  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 Ⅵ.
 
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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