ASTM B148 C95800 Swing Check Valve, API 6D, 6 IN, 150 LB, RF

The ASTM B148 C95800 Check Valve Plant specializes in producing high-performance swing check valves designed for demanding industrial applications. These valves feature an aluminum alloy body, offering lightweight construction and excellent corrosion resistance. The valves comply with the API 6D standard, ensuring high-quality and reliable performance. With a size of 6 inches (DN150) and a pressure rating of 150 LB (PN20), they are well-suited for handling fluids at moderate pressures. Equipped with RF (Raised Face) flanged ends, these valves provide secure and leak-free connections.

Product Name: ASTM B148 C95800 Swing Check Valve
Type: Swing Check Valve
Design Standard: API 6D
Body Material: ASTM B148 C95800
Size: 6 Inch, DN150
Pressure: Class 150 LB, PN20
End Connection: RF Flanged
Medium: Seawater
Temperature Range: -29°C to 150°C

Universal Cast Steel Check Valves are designed and manufactured in strict compliance with international standards, including API 6D, BS 1868, ASME B16.34, or equivalent. These valves are engineered to minimize flow resistance and pressure drop, ensuring optimal performance. They are suitable for horizontal installation only, featuring a lapped and screwed seat ring for tight sealing and long service life.
The precision-designed disc is accurately machined and guided, enabling efficient automatic shut-off even at zero pressure. With a compact structure and low-emission design, these valves deliver reliable performance. In their standard configuration, swing check valves feature a bolted cover and a free-swinging clapper, which acts as the closing mechanism in response to flow conditions. While these valves are ideal for horizontal pipelines, heavier discs may cause chattering. In such cases, dampers or counterweights should be installed to ensure smooth operation.

Technical Specification

» Nominal Diameter: NPS 2-24 Inch (DN50-DN600)
» Design Pressure: Class 150 LB, PN10, PN16
» Material: ASTM B148 C95400, C95500, C95800, ASTM B150 C63000, C63200
» End Connections: FF, RF
» 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

» Prevents Reverse Flow: Designed to stop backflow in pipelines, ensuring unidirectional flow with minimal pressure drop due to its straight-through design. The swing disc opens as media flows forward and automatically closes with backpressure to seal the line securely.
» Flexible Installation: Suitable for both horizontal and vertical pipelines, but must be installed in the correct flow direction as indicated by the arrow on the valve body.
» Customizable Options: Available with optional accessories such as bypass lines, locking devices, counterweights, and more to meet specific operational needs.