Series MB 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 â…¥.

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.