Specifications:

Size: DN50-DN2000

Pressure: PN10/16/25/40 Class150/300

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Materials:

Body : WCB

Disc: WCB

Seal : WCB

Stem : SS410

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Operated:Bare Type

Applicable medium：Water, Oil, Gas

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Triple eccentric butterfly valve:
To withstand high temperature, a hard seal must be used, but the amount of leakage is large; to zero leakage, a soft seal must be used, but it is not resistant to high temperature. In order to overcome the contradiction of the double eccentric butterfly valve, the butterfly valve was eccentric for the third time. The so-called third eccentricity means that the shape of the sealing pair is not a positive cone, but an oblique cone.
Features:
The butterfly valve and the upper and lower valve shafts are connected by special-shaped holes and special-shaped shafts. During the opening and closing process of the butterfly plate, the function of the pinless link of the butterfly plate floating up and down, left and right is realized, which reduces the interference area between the butterfly plate and the valve seat. This greatly reduces torque. The floating structure of the butterfly plate realizes the production process of single eccentricity and the function of variable eccentricity.
The inner cavity of the valve body is provided with an anti-disc overrun stopper to ensure that the disc is not in place when closed.
The upper and lower valve shaft holes of the valve body cavity and the upper and lower valve shaft holes of the butterfly plate are protected by bushings to prevent large particles in the medium from entering the valve shaft holes.