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Double-Eccentric Flanged Butterfly Valve

  • Product Model: D342X-16
  • Operating Temperature: 0~80℃
  • Nominal Pressure: 1.0~1.6MPa
  • Connection Type: Flanged Connection
  • Applicable Media: Clean Water, Sewage, Air

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Product Description:

Specifications

  • Product Model: D342X-16
  • Operating Temperature: 0~80℃
  • Nominal Pressure: 1.0~1.6MPa
  • Connection Type: Flanged Connection
  • Applicable Media: Clean Water, Sewage, Air

Structural Features

The double-eccentric flanged butterfly valve adopts a double-eccentric structure where the valve stem and the centerline of the valve seat are not aligned with the centerline of the butterfly plate, creating an eccentric design. This design significantly reduces friction between the valve disc and the valve seat, enhancing the valve’s service life and sealing performance. Meanwhile, the use of a flanged connection ensures a reliable connection between the valve and the piping, making it suitable for high-pressure and large-diameter piping systems.

Valve Body Material

The valve body is available in various materials, including cast iron, carbon steel, and stainless steel, to meet the requirements of different working conditions. Users can select the most suitable valve body material based on the specific application scenario and media characteristics.

Rated Pressure and Diameter

The rated pressure range of the double-eccentric flanged butterfly valve is typically between tens of megapascals to hundreds of megapascals. The rated diameter generally ranges from a few millimeters to several meters, depending on the actual requirements.

Valve Seat Material

To ensure good sealing performance, the valve seat of the double-eccentric flanged butterfly valve is usually made of wear-resistant and corrosion-resistant materials such as Polytetrafluoroethylene (PTFE) or Ethylene Propylene Diene Monomer (EPDM). These materials exhibit excellent wear resistance and corrosion resistance, effectively handling various media challenges.

Actuation Methods

The double-eccentric flanged butterfly valve can be actuated in various ways, including manual operation, electric operation, and pneumatic operation. Users can choose the appropriate actuation method based on their specific needs to meet the control requirements in different application scenarios.

Operating Temperature Range

The operating temperature range of the double-eccentric flanged butterfly valve is typically between -40℃ and +200℃, but the specific range depends on the choice of valve body and sealing materials. Users should ensure that the selected valve can operate normally in their working environment.

Leakage Class

The leakage class of the double-eccentric flanged butterfly valve is usually zero leakage or seal leakage level, indicating that the valve can effectively prevent media leakage in the closed state, ensuring the safe operation of the piping system.

Application Fields

Double-eccentric flanged butterfly valves are widely used in piping systems in various industries such as petroleum, chemicals, pharmaceuticals, food processing, and water treatment to control the flow rate and pressure of media. Their excellent performance and wide range of applications make them an indispensable component in these industries.

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