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By certification 
Detailed Information
VFF bunker discharging butterfly valve is made up of superficial processing carbon steel which is consist of monolithic. As is shown in the left above figure the compound square flange on the upward side of the valve has four waist holes. Thus it can assemble with silos of different sizes. It is suitable for all building material production.
Advantages
1. The material of valves is carbon steel.
2. The material of valve disks is also carbon steel.
3. The inside of valve body is lined with SINT Polymer composites.
4. Easy to assemble.
5. Excellent seal function is benefit from special geometry of the seal device.
