Description

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 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 â…¥.

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.