Incoloy 825 Swing Check Valve, BS 1868, 8 Inch, 1500 LB, BW

Key Specifications / Features

The Incoloy 825 Swing Check Valve, manufactured in China, features a pressure-sealed design and complies with BS 1868 and API 6D standards. With a 4-inch (DN100) size, Class 2500 LB (PN420) pressure rating, and BW ends, this valve ensures reliable backflow prevention in high-pressure applications, offering superior corrosion resistance and durability in aggressive environments.

Pressure Sealed Check Valves are designed for high-pressure, high-temperature applications across a wide range of fluids, except in cases where severe coking is present. These valves offer exceptional performance in steam-generation stations, industrial chemical plants, and thermal power plants. The combination of robust design and premium material options, including cast steel and forged steel bodies, makes Pressure Sealed Check Valves an excellent choice for diverse application requirements.
Engineered with a compact structure, these valves ensure efficient flow, superior sealing, and low emissions. Their design also provides significant weight savings, simplifies installation, and enables convenient in-line maintenance.

Technical Specifications

» Nominal Diameter: NPS 2-24 Inch (DN50-DN600)
» Design Pressure: Class 600-2500 LB (PN110-PN420)
» Materials: Incoloy 825, ASTM A351 CF8, CF8M, CF3M, CF8C
» End Connections: BW, 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

» Prevention of Backflow: The cast steel swing check valve prevents reverse flow, with the disc swinging into the open position during forward flow and closing securely under back pressure.
» Efficient Flow Path: Straight-line flow through the valve minimizes pressure drop, ensuring optimal efficiency.
» Flexible Installation: Suitable for horizontal or vertical installation, with proper alignment to the media flow direction indicated by the arrow on the valve body.
» Customizable Accessories: Available options include bypasses, locking devices, counterweights, and more to meet specific customer requirements.