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Pressure Seal Bonnet Swing Check Valve Manufacturers

Pressure Seal Bonnet Swing Check Valve

Pressure Seal Bonnet Swing Check Valves are ideal for high pressure steam, liquid, catalytic reformers, hydro crackers and other tough services. In the tough world of High pressure, High temperature valve applications, Pressure Seal Check Valve continue to provide a wide range of industries with a safe, leak free, pressure containing boundary.

Series - 150 To 2500

These valves are unidirectional and restrict flow from opposite direction. These are best suited for moderate velocity conditions. Check valves are normally designed for horizontal flow condition, but can also be installed in vertical pipeline, but in vertical pipeline, the flow shall be in upwards direction and under the disc.

Design Features
  • Only one sealing face is designed on the valve body and valve disc
  • Full stellite overlay seat sealing surfacespan
  • Good for manufacturing process and easy to maintain
  • Use flexible and woven graphite collaboration type packing
  • Absolute bonnet joint leak proof
  • Optional by-pass design
  • Optional designed with a Damping Cylinder
Product Specifications
  • Size 2″-30″ DN50-DN750
  • Pressure Class "150, 300, 600, 800, 900, 1500, 2500" | PN100-PN420
  • End Connection Flange (RF, RJ), Butt Welding
  • Body Material WCB, WC6, WC9, WCC, CF8, CF3, CF3M, CF8M, 4A, 5A
  • Disc Material WCB, WC6, WC9, WCC, CF8, CF3, CF3M, CF8M, 4A, 5A
  • Seat Material A105+13Cr
  • Stem Material /
  • Design Standard API600, ASME B 16.34, API6D, BS5351
  • Face to Face Standard ASME B16.10
  • Test Standard API 598
  • Temperature Range -196℃~650℃
  • Actuator Options /
    Structure Style
  • Full Port
    Connection Standard
  • Flange Drilling: ASME B16.5, ASME B16.47, GB/T 9113, JB/T 79
  • Butt Weld: ASME B16.25, GB/T 12224