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Eccentric Butterfly Valve

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Eccentric Butterfly Valve
Enhanced Flow Regulation
Showcasing Eccentric Butterfly Valves from Lipin
Lipin's eccentric butterfly valve is known for their precise flow and functional characteristics as well as their ability to seal tightly. It is the stem axis deviates from the center of the disc and the center of the body at the same time, and the sealing pair is inclined. Due to the eccentric distance between the seat and the disc, the eccentric butterfly valve is better sealed and suitable for use in high temperature, high pressure or corrosive media. In addition to the double-eccentric design, Lipin's range includes the nuances of single- and triple-eccentric valves.
Data SheetFor detailed specifications of the eccentric butterfly valve, please click on the product image above or the "view" button below.
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Why Choose Lipin's Eccentric Butterfly Valves

Lipin, a recognized leader in the valve industry, distinguishes itself with its superior eccentric butterfly valves. Here's why industry professionals are leaning towards Lipin's offerings:
  • Long life
    double eccentric butterfly valve is more resistant to high pressure. The eccentric structure reduces the friction of the sealing ring and prolonging the service life of the valve.
  • Efficient operation
    effectively reduce valve seat wear, can keep the valve safe sealing and operation for a long time. After the test, the valve can still maintain zero leakage when the valve is switched 700,000 times.
  • Zero leakage
    Completely sealed, zero leakage. It can be used in ultra-high vacuum condition.
  • Efficient Flow Control
    Our Eccentric butterfly valve is widely used for liquid flow control due to its cost-effectiveness. It’s easy to operate, maintain, and offers long-lasting performance.
  • Simple Central Design
    The valve's stem is centrally located, with a disc positioned in the middle of the valve. This simple structure ensures reliable flow control and easy handling.
  • Lightweight and Durable
    The valve is lightweight, making it practical for various uses. Its components are durable and comparable to other high-quality flow control systems.

Key Components of Eccentric Butterfly Valves

The Eccentric Butterfly Valves mainly consists of the following eight parts. This component ensures that the Butterfly valve remains efficient and stable during operation and maintains a zero leakage record.
  • Body
    The fundamental casing that delineates the fluid's flow route.
  • Offset Disc
    Positioned within the valve body, this uniquely designed disc, due to its eccentric nature, orchestrates fluid control with minimal seat wear.
  • Stem
    Bridges the actuator and the offset disc, enabling the regulated movement of the valve.
  • Seat Ring
    Collaborating with the offset disc, it delivers an optimal seal to curtail any potential fluid escape.
  • Drive Mechanism
    Ranging from manual handwheels to advanced pneumatic or electric actuators, this apparatus governs the motion of the eccentric butterfly valve.
  • Sealing Gaskets
    Ensure a tight enclosure, negating any chance of internal fluid seepage.
  • Limiting Bolts (or Restraints)
    These components safeguard the eccentric butterfly valve by halting excessive opening or closing.
  • Bushings
    These facilitate reduced friction between the stem and the valve casing, endorsing a fluid valve operation.
    • Advantages of

    Eccentric Butterfly Valves

    • 01
      Metal sealing technology
      The sealing surface made of cemented carbide or special materials has excellent wear resistance, corrosion resistance and high pressure resistance to ensure the good sealing of the valve. The valve seat and the butterfly plate have almost no wear and tear, and the sealing function is tighter and tighter.
    • 02
      Easy installation
      When the high performance butterfly valve body is clamped by a bolt through the pipe flange, the valve body automatically aligns the pipe for quick and accurate installation.
    • 03
      Excellent fluid control
      Butterfly valves open and close quickly, with low operating torque, can achieve accurate flow control, suitable for a variety of fluid media. When closed, the valve plate expands outwards to achieve the peripheral seal state; When opened, the valve plate and the seal ring quickly separated, effectively prevent the seal ring wear.
    • 04
      Excellent temperature resistance
      The high performance double eccentric hard seal butterfly valve is suitable for high temperature conditions and can run stably in high temperature environment for a long time.

    Why Should You Choose Eccentric Butterfly Valves?

    The Lipin's eccentric butterfly valve type is unique in that it has features that no other valve can achieve. Eccentric butterfly valves are commonly used in applications that require a bubble seal closure. It is superior to other valves in areas involving harsh chemicals and particles. Eccentric butterfly valves are easy to install, operate, maintain, improved sealing capacity, corrosion resistance, and the ability to work in high pressure and high temperature applications.


    About Lipin Eccentric Butterfly Valves

    • Body Type:
      Single-offset (or Single Eccentric)
    • Body Materials:
      Carbon steel (suitable for most applications), 304 stainless steel, and super duplex stainless steel (offering enhanced corrosion resistance), among others.
    • Stem Material:
      Predominantly crafted from stainless steel, harmonizing with the valve body to prevent any galvanic corrosion.
    • Seat Material:
      PTFE (Polytetrafluoroethylene), RPTFE (Reinforced PTFE), and UHMW (Ultra High Molecular Weight Polyethylene).
    • Disc Material:
      Depending on specific needs, choices range from stainless steel, carbon steel, to specially coated materials catering to unique requirements.
    • Bearings:
      Typically fabricated from low-friction materials such as PTFE or fortified composites to endure intense operational strains and diminish wear.
    • Pressure Ratings:
      Class125-Class1500 (aligned with ASME norms) Or PN6-PN100.
    • Actuators:
      Manual lever, gearbox, electrical actuation, or pneumatic actuation mechanisms.
    • Size:
      Generally spans from 1/2'' to 48'' (DN15-DN1200).
    • Temperature:
      Predicated upon the materials in use, PTFE seats, for instance, can function in a range from -20°C to +180°C, with -180°C to +550°C achievable using select materials.
    About the Application of

    Lipin Eccentric Butterfly Valve

    The uniqueness of eccentric butterfly valves stems from their deliberate design for enhanced sealing, versatility across different media, precise flow management, and rapid actuation. These attributes render them especially apt for several distinctive industrial domains.
    • Oil and Gas Industry
    • Chemical Industry
    • Steam Systems
    • Pharmaceutical Manufacturing
    • Water Management and Supply
    • Construction Sector
    • Energy Industry
    • Water Treatment
    • +86 0577 67355525 +86 17357466831 lip@lipvalve.com
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