ASTM A216 WCB Swing Check Valve, API 6D, 3 IN, CL300, RF

Product Name: ASTM A216 WCB Swing Check Valve
Design Standard: API 6D
Body Material: Carbon Steel ASTM A216 WCB
Size: 3 Inch, DN80
Pressure: Class 300 LB, PN50
End Connection: RF Flanged

KOSEN Universal Cast Steel Check Valves are engineered and manufactured to meet international standards such as API 6D, BS 1868, ASME B16.34, or equivalent. These valves are designed to minimize flow resistance and pressure drop, making them ideal for horizontal installations. The lapped and screwed-in seat ring ensures a tight shutoff and long-lasting performance.

The valve's disc is precisely designed, machined, and guided for efficient automatic shutoff at zero pressure, offering a compact structure and low-emission operation. In the standard configuration, swing check valves feature a bolted cover and a free-swinging clapper, which serves as the closing member that responds to flow conditions.

Swing check valves are best suited for horizontal pipeline installations. However, when heavier discs are used, chattering may occur. In such cases, dampers or counterweights should be provided to mitigate this issue.

Technical Specification

» Nominal Diameter: NPS 2-24 Inch (DN50-DN600)
» Temperature Range: -29°C to 595°C
» Design Pressure: Class 150-2500 LB (PN10-PN420)
» Material: ASTM A216 WCB, WCC, A217 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, EN558 series
» Flanged Connection: ASME B16.5, ASME B16.47, EN1092 series
» Butt Welded End: ANSI B16.25
» Test and Inspection: API 598, ISO 5208, EN12266-1

Product Features

» Cast steel swing check valve: Prevents backflow in the line. The flow moves in a straight line through the valve, resulting in minimal pressure drop. The disc swings open as the media flows through the valve, and back pressure holds the disc in the closed position.

» Installation flexibility: Cast steel swing check valves can be installed in both horizontal and vertical lines. However, they must be positioned according to the media flow direction, as indicated by the flow direction arrow on the valve body.

» Customizable accessories: A variety of accessories, including bypasses, locking devices, counterweights, and more, are available to meet specific customer requirements.