24 Inch Swing Check Valve, API 6D, ASTM A216 WCB, CL900, RTJ

This 24-inch (DN600) swing check valve from a leading China plant is engineered to API 6D standards and features a robust ASTM A216 WCB carbon steel body for high strength and corrosion resistance. Designed for high-pressure systems, it is rated for Class 900 LB (PN150) and equipped with RTJ flanged ends to ensure secure, leak-proof connections. The swing-type disc allows for automatic flow control, effectively preventing backflow in pipelines.

Product Name: 24 Inch Swing Check Valve
Type: Swing Check Valve
Design Standard: API 6D
Body Material: ASTM A216 WCB
Size: 24 Inch, DN600
Pressure: Class 900 LB, PN150
End Connection: RTJ Flanged
Medium: Water, Oil, Gas, etc
Temperature Range: -29°C to 595°C

Universal Cast Steel Check Valves are meticulously designed and manufactured in strict adherence to international standards such as API 6D, BS 1868, ASME B16.34, or their equivalents. These valves are engineered to minimize flow resistance and pressure drop to the greatest extent possible. They are specifically designed for horizontal installation, with a lapped and screwed seat ring that ensures tight closure and long-lasting service. The valve disc is precisely designed, machined, and guided to achieve efficient automatic shut-off at zero pressure, offering a compact structure and low-emission service. In its standard configuration, the swing check valve features a bolted cover and a free-swinging clapper, which acts as the closing member and responds to the prevailing flow conditions. While swing check valves are ideally suited for horizontal pipeline installations, heavier disc weights may lead to chattering issues. In such cases, dampers or counterweights should be provided to mitigate these problems.

Technical Specification

» Type: Swing Check Valve
» Nominal Diameter: NPS 2-24 Inch (DN50-DN600)
» Design Pressure: Class 150-2500 LB (PN10-PN420)
» Material: ASTM A216 WCB, WCC, 217 WC6, WC9, C5, C12A, A352 LCB, LCC, A351 CF8, CF8M, CF3M, CF8C
» End Connections: Flanged (FF, RF, RTJ) to international standards
» Design and Manufacture: BS 1868, API 6D, DIN 3352
» Face to Face (End to End): ANSI B16.10, EN 558 series
» Flanged Connection: ASME B16.5, ASME B16.47, EN 1092 series
» Butt Welded End: ANSI B16.25
» Test and Inspection: API 598, ISO 5208, EN 12266-1

Product Features

» Function and Flow Dynamics: Cast steel swing check valves are designed to prevent backflow in pipelines. The flow through the valve is linear, resulting in minimal pressure drop. As the media flows through the line, the disc swings open, allowing smooth passage. When back pressure is present, the disc is held securely in the closed position to prevent reverse flow.
» Installation Orientation: These valves can be installed in both horizontal and vertical lines. However, they must be positioned correctly in relation to the media flow, as indicated by the flow direction arrow marked on the valve body.
» Customization and Accessories: A range of accessories, including bypasses, locking devices, counterweights, and more, are available to meet specific customer requirements.