Ball Valve

Ball Valve

An API standard ball valve is a type of valve commonly used in various industries to control the flow of fluids through pipelines.

General Description

  • Function: Ball valves are designed to provide a quick and reliable means of starting or stopping the flow of fluid. They are known for their durability and ability to provide tight shut-off with minimal leakage. Unlike gate valves, ball valves use a spherical ball with a hole (bore) through its center to control flow.
  • Construction: The main components of a ball valve include:
    • Ball: A spherical element with a hole or port through it, which rotates to open or close the flow.
    • Seats: Typically made of soft materials like PTFE or metal, these create a seal between the ball and the valve body.
    • Stem: Connects the ball to the handle or actuator and allows for the rotation of the ball.
    • Body: Houses the ball and other internal components.
  • API Standards  : API 6D/608/623
  • Design: Ball valves feature a spherical ball with a central bore that aligns with the pipeline when open, allowing fluid to flow through. When the ball is rotated 90 degrees, the bore is perpendicular to the flow, effectively shutting off the flow.
  • Materials: Ball valves are available in a range of materials, including:
    • Body Materials: Carbon steel, stainless steel, and alloy steels.
    • Ball Materials: Stainless steel, brass, or other corrosion-resistant materials.
    • Seat Materials: PTFE (Teflon), metal, or other durable materials.
  • Pressure Rating: Ball valves come in various pressure ratings, such as ANSI Class 150, 300, 600, etc., to suit different pressure requirements. Higher pressures on request.
  • Size Range: Available in a wide range of sizes from small to large diameters to meet different application needs.
  • End Connections: Can be equipped with various end connections, including flanged, threaded, or welded, depending on the system and application.
  • Oil and Gas, Water and Wastewater, Chemical Processing, Power Generation
  • Ball valves can be operated manually with a lever or handle, or automatically with electric or pneumatic actuators. Their design allows for quick operation and reliable performance.