Butterfly Valve
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High performance metal hard seal butterfly valve

    At present, butterfly valve is used to open and close the pipeline and control the flow; it is quite widely used in multiple areas of petroleum, chemical, metallurgy, hydropower etc.

Its reliability and performance rate reach a high standard. It is convenient to operate the valve and it is free from friction; when opening and closing of the valve, the transmission system will enlarge the torque to offset the seal, which increases the sealing performance and extends life of the valve. Butterfly valve is specially applied when large core is needed.


Standard: API 609/ASME B16.34/ASME B16.10

Diameter and pressure: 2" ~ 24"  CL150 ~CL600

Mode of drive: gear box, manual, pneumatic, electric etc.

External connection: flange type, wafer type, lug type

Fire resistant: yes

Electrostatic preventive: yes

Corrosion resistant: yes


Three triple offset design;

Non-friction sealing design, flow pressure gives additional sealing, applicable in high temperature, high pressure, and fire resistant working requirement;

Oblique conical cutting valve seat and seal ring;

Control of opening and closing angle;

Blowout preventive stem, low leakage seal.

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