Quick Detail

Design standard: API609

Body material: WCB. Carbon Steel

Nominal diameter: 8″.6” 10”

Pressure: PN64 PN40

End connection: RF. Flange/FF flange

Face to face: EN558 Series 13/ISO5752 Series 13

Normal. Working temperature: -29℃~+425℃.

Test and inspection: API 598.

Bubble Tight Closure

Fire Safe Function

Blowout-Proof Stem

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Product Range

Triple offset Butterfly Valve API ANSI

Pressure Rating from 150LBS to 1500LBS. PN6-PN250

Size Range: 2”-48” DN50-DN1200

Testing /inspection: API 598/EN12226

Available Body: ASTM A216WCB/LCB/CF8M/CF3M/CF8/SS/4A/5A

Available Integral Body Seat: overlay 13cr/Stellite STL /SS316

Available Laminated Seal: SS316+SS316/Graphite /PTFE /Teflon

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Optional available on request

Renewable Seat 17-4H/SS304/SS316

Seat Protector Ring: A105/SS314/SS316

Metal to Metal Seal: A182F316+Stellite STL

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Performance:

The three offset Design include:

1. Deviation from the center of the pipeline

2. Off center of sealing surface

3, inclined cone

When the valve is opened, the butterfly plate and the valve seat are in instant contact when they are closed, and the butterfly plate eccentricity 1 and eccentricity 2 are used to quickly separate from the valve seat, which reduces the wear of the seal pair, the friction torque is small, and the opening is flexible. The eccentric cone surface 3 enables the butterfly plate to pass through the inner hole of the valve seat when the valve is opened or closed to achieve contact sealing. In addition, the radius of rotation of the cone-shaped butterfly plate is greater than the rotation radius of the contact position of the sealing pair, so the butterfly plate will appear tighter and tighter when the valve is closed.

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Application:

It is used for regulating flow and carrying fluid in industrial pipelines such as electric power, petrochemical industry, water supply and drainage, and municipal construction.