ASTM A890 5A Swing Check Valve, API 6D, 2 Inch, 900 LB, RTJ

Product Name: ASTM A890 5A Swing Check Valve
Design Standard: API 6D
Body Material: ASTM A890 5A
Size: 2 Inch, DN50
Pressure: Class 900 LB, PN150
End Connection: RTJ Flange

Universal Cast Steel Check Valves are engineered to meet stringent international standards, including API 6D, BS 1868, and ASME B16.34. These valves minimize flow resistance and pressure drop, making them highly efficient for horizontal installations. The lapped and screwed-in seat ring ensures a tight shutoff and long-lasting service.
The valve disc is precisely designed and machined for smooth operation, providing efficient automatic shutoff at zero pressure. With a compact structure and low-emission design, these swing check valves are equipped with a bolted cover and a free-swinging clapper, which responds dynamically to flow conditions. For heavier discs, optional dampers or counterweights are available to prevent chattering, ensuring reliable performance in demanding applications.

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, CF3M, CF8C
» End Connections: Flanged (FF, RF, RTJ) to international standards
» Temperature Range: -29°C to 595°C
» Medium: Water, gas, oil, etc.

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: Designed to prevent reverse flow, the valve allows straight-line media flow with minimal pressure drop. The disc swings open during forward flow and closes securely under back pressure.
» Versatile Installation: Suitable for horizontal or vertical pipeline installations, provided the media flow aligns with the arrow marked on the valve body.
» Customization Options: Optional accessories such as bypasses, locking devices, counterweights, and more can be added to meet specific application needs.