API 6D Swing Check Valve, A216 WCB, 30 Inch, 600 LB, BW Ends

Product Name: API 6D Swing Check Valve with Cylinder
Type: Swing Check Valve
Design Standard: API 6D
Body Material: ASTM A216 WCB
Size: 30 Inch, DN750
Pressure: Class 600 LB, PN100
End Connection: Butt Weld
Medium: Water, Oil, Gas, etc
Temperature Range: -29°C to 595°C

Universal Cast Steel Check Valves are meticulously designed and manufactured in strict compliance with international standards such as API 6D, BS1868, 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, ensuring optimal performance and longevity. The seat ring is lapped and screwed, providing a tight seal and long-term service. The valve disc is precisely designed, accurately machined, and guided to achieve efficient automatic shut-off at zero pressure, featuring a compact structure and low-emission service capabilities. In its standard configuration, the swing check valve includes a bolted cover and a free-swinging clapper, which responds to prevailing flow conditions for smooth operation. While these valves are ideally suited for horizontal pipeline installations, heavier disc weights may lead to chattering issues, necessitating the use of dampers or counterweights 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

» Backflow Prevention: Cast steel swing check valve prevents backflow with minimal pressure drop. The disc swings open with flow and closes with back pressure.
» Installation: Suitable for horizontal or vertical lines. Install according to the flow direction arrow on the body.
» Accessories: Available options include bypasses, locking devices, counterweights, and more to meet customer needs.