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    4 inch Triple Offset Butterfly Valve

    High accuracy triple offset butterfly valve with flange connection, 4 inch (DN100) port size, the body material cast steel WCB/ stainless steel can be selected. The triple eccentric butterfly valve can be used in water, weak acid-base, air, steam, oil, etc.
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    Buy a triple offset butterfly valve online. The 4" hard seal butterfly valve with nominal pressure PN16, flange connection. The hard alloy sealing material is used to ensure the sealing performance and wear resistance of the flange butterfly valve.


    • The triple eccentric butterfly valve has small opening torque, flexible and convenient, labor-saving and energy-saving.
    • The three-dimensional braided core structure makes the butterfly plate tighter and tighter, and its sealing performance is reliable to achieve no leakage.
    • Flange triple eccentric butterfly valve is resistant to high pressure, corrosion resistance, wear resistance, long service life, etc.


    • Model: ATO-D343H-16C-DN100
    • Port Size: 4 inch (DN100)
    • Nominal pressure: PN16
    • Connection Type: Flanged Type
    • Body Material: Cast steel WCB/ Stainless Steel
    • Disc Material: Cast steel WCB/ Stainless Steel
    • Media: Water, weak acid base, air, steam, oil, etc.
    • Working Temperature: Carbon steel: -29℃~425℃, Stainless steel -40℃~600℃


    Triple offset butterfly valve dimension

    Model Length (mm) Dimension (mm) Connection Size (mm)
    H L H1 A1 B1 D D1 Z-d
    ATO-TOBV-DN100 138 127/190 420 180 200 220 180 8-18


    Triple offset butterfly valve application

    Tips: What are the advantages of a triple offset butterfly valve?

    • Geometric Design: The design of the sealing components takes up a right-angle cone shape. Resulting in a cam-action and right-angled design where the sealing components are never in contact until their final degree of closing. Thus, enabling a repeatable sealing and an extended valve life because of its friction-free nature. In addition, the friction-free stroking throughout the valve allows for a relatively lower torque actuator to operate this type of valve. Such a design makes it ideal for automation.
    • Metal-to-Metal Seal: Because of the frictionless sealing mechanism, triple offset butterfly valves use a metal-to-metal seal. This enables a tight shutoff in high-pressure and high-temperature systems. Applications that use friction in sealing often use elastomers or soft material for the valve trim, which may deteriorate with increasing temperature or when the valve is subjected to corrosion. But with the triple offset, corrosion-resistant alloys can serve for both the valve disc and seat, to deliver zero leakage performance.
    • Absence of Cavities: In a triple-offset valve, there are no cavities between sealing components. Therefore, there is no room for debris to clog and disrupt the sealing mechanism, unlike gate and ball valves. This minimizes maintenance costs and extends the valve life.
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