ASTM A216 WCB Swing Check Valves, API 6D, 8 Inch, CL300, RF

Product Name: ASTM A216 WCB Swing Check Valve
Type: Swing Type Check Valve
Design Standard: API 6D
Body Material: ASTM A216 WCB
Size: 8 Inch, DN200
Pressure: Class 300 LB, PN50
End Connection: RF Flanged

Our Universal Cast Steel Check Valves are engineered to meet international standards such as API 6D, BS1868, and ASME B16.34, offering a design that minimizes flow resistance and pressure drop. These valves are ideal for horizontal pipeline installations, ensuring tight shutoff and long service life through their lapped and screwed-in seat rings. The disc is precisely machined and guided to guarantee efficient automatic shutoff even at zero pressure. Designed with a compact structure, these valves also offer low-emission service. The swing check valve features a bolted cover and a free-swinging clapper that responds to flow conditions, providing effective closure. However, for larger discs that may cause chattering, dampers or counterweights are recommended to prevent issues.

Technical Specifications

» Nominal Diameter: NPS 2–24 Inch (DN50–DN600)
» Design Pressure: Class 150–2500 LB (PN10–PN420)
» Materials: ASTM A216 WCB, WCC, A217 WC6, WC9, C5, C12A, A352 LCB, LCC, A351 CF8, CF8M, CF3, CF3M, CF8C
» End Connections: Flanged (FF, RF, RTJ) to international standards
» Design and Manufacture Standards: BS 1868, API 6D, DIN 3352
» Face-to-Face (End-to-End): ANSI B16.10, EN 558 Series
» Flanged Connections: ASME B16.5, ASME B16.47, EN 1092 Series
» Butt Welded End: ANSI B16.25
» Test and Inspection Standards: API 598, ISO 5208, EN 12266-1
» Temperature Range: -29°C to 595°C
» Medium: Water, gas, oil, etc.

Features of Swing Check Valve

» Backflow Prevention: The cast steel swing check valve is designed to prevent backflow in pipelines, allowing for smooth flow in a straight line, which minimizes pressure drop.
» Automatic Disc Operation: The valve's disc swings open when media flows through the line, and back pressure keeps the disc in the closed position to prevent reverse flow.
» Flexible Installation: These valves can be installed in both horizontal and vertical lines, as long as the installation follows the proper flow direction indicated by the body's arrow.
» Customizable Accessories: Various accessories such as bypasses, locking devices, counterweights, and others are available to meet specific customer needs and ensure optimal operation.