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Pressure Seal Swing Check Valve

South American Valve is a leading manufacturer of reliable and durable valves in Venezuela. A Pressure Seal Swing Check Valve is a type of valve that is designed to allow flow in one direction while preventing backflow in the opposite direction. It consists of a body, a disc, a hinge pin, a seat, and a spring. The body of the valve is typically made of high-quality carbon steel, stainless steel, or alloy steel, and it features a pressure seal bonnet that provides a secure, leak-free seal. The disc of the Pressure Seal Swing Check Valve is attached to the hinge pin and is free to swing on the pin, allowing flow in one direction. When the flow stops or reverses, the disc swings back to the closed position and comes into contact with the seat, creating a tight seal that prevents backflow. The seat is typically made of hardened steel or other materials that are resistant to wear and corrosion.

The spring in the valve is designed to provide additional force to ensure that the disc closes tightly against the seat, preventing any leakage or backflow. The pressure seal bonnet design ensures that the valve can withstand high pressure and high-temperature applications, making it suitable for use in a range of industrial settings. Pressure Seal Swing Check Valves are commonly used in applications where high pressure and high-temperature conditions are present, such as in power plants, oil and gas pipelines, chemical processing plants, and other industrial applications. They offer several advantages over other types of check valves, including improved sealing capabilities, reduced risk of water hammer, and longer service life.


  • Body
  • Disc
  • Hinge Pin
  • Seat
  • Spring
  • Stem
  • Actuator or Handle
  • Gasket


  • High Pressure and Temperature Resistance
  • Improved Sealing Capabilities
  • Reduced Risk of Water Hammer
  • Longer Service Life
  • Versatility


  • Oil and gas
  • Chemical processing
  • Petrochemicals
  • Refining
  • Power generation
  • Mining
  • Pulp and paper
  • Water treatment
  • Desalination
  • Marine and offshore
  • Steel manufacturing
  • Automotive manufacturing
  • Aerospace
  • Military and defense
  • Construction and infrastructure