The API Swing Check Valve is a type of valve designed to allow fluid flow in one direction while preventing backflow. It features a hinged disc that swings open with the flow of fluid and closes automatically when the flow stops or reverses. This design minimizes pressure loss and is particularly effective in applications where a quick response to changes in flow direction is required. The API (American Petroleum Institute) standards ensure that these valves are built to withstand the demanding conditions often found in oil and gas, petrochemical, and other industrial applications.

Features:

• API Compliance: Manufactured according to API standards (such as API 6D), ensuring reliability and performance in critical applications.
• Robust Construction: Typically made from high-strength materials such as carbon steel, stainless steel, or alloy steels, providing durability and resistance to wear and corrosion.
• Efficient Flow Design: The swing mechanism allows for minimal pressure drop and turbulence, enhancing system efficiency.
• Automatic Operation: The valve automatically opens and closes based on the flow direction, providing reliable backflow prevention without manual intervention.
• Versatile Applications: Suitable for various media, including liquids, gases, and slurries, making it adaptable for numerous industrial environments.

Product Specifications:

• Standard Compliance: Manufactured according to API 6D, ANSI, ASME, or other relevant industry standards
• Nominal Pressure: Available in pressure ratings such as Class 150, 300, 600, 900, 1500, or 2500
• Nominal Diameter: Ranges from NPS 2 to NPS 36 (or larger, depending on the application)
• Body Material: Options include carbon steel (WCB), stainless steel (AISI 304, AISI 316), or other high-strength alloys
• Sealing Material: Various options, including metal-to-metal seals or soft seals made of materials like PTFE or rubber
• Connection Type: Flanged, butt-welded, or threaded connections, depending on the installation requirements
• Operating Temperature: Typically ranges from -20°C to +450°C (-4°F to +842°F), depending on the materials used

Applicable standards:

•  STEEL CHECK VALVES, API 6D
•  STEEL CHECK VALVES,ISO14313
•  STEEL VALVES,ASME B16.34
•  FACE TO FACE, ASME B16.10
•  END FLANGES,ASME B16.5
•  BUTTWELDING ENDS,ASME B16.25
•  INSPECTION AND TEST, API 598/API 6D