Wafer,lug type,flange triple-eccentricity Butterfly Valve

详情

MAINFEATURES:
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 *0°, the butterfly plate sealing face will break away from the valve seat sealing face upon opening; when it is closed from *0° 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 **9, ASME B*6.*4, GB/T****8, JB/T ***7.
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 *6.**4 Ⅵ.
 
ProductRange
Body material: carbon steel, stainless steel, alloy steel
Nominal diameter: 2"～**0"（DN*0~DN***0）
Pressure range:Class**0～**0（PN*0~PN**0）
End connection: RF, RTJ
Working temperature:**6℃～***0℃
Operation :  wrench, worm gear, electric, etc