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Pressure Seal Gate Valves

FZV’s Pressure Seal Parallel Slide Gate Valves are designed in accordance with the latest applicable revisions of API 600, API 6D, and ASME B16.34 for classes ANSI 600, 900, 1500, and 2500.

Key Application(s)

For application in fields such as the power, petroleum, steam, chemical, and others.

Design Features

  • Sizes from NPS 2” to 48”(DN50 to DN1200)
  • CLASS 600 to 2500 (PN100 to PN420)
  • Operating temperature -196℃ to 593℃ (the range of service temperature may vary for different materials)
  • The sealing faces of the valve seat and valve gate are hard faced to improve the erosion resistance and extend the service life of the valve.
  • The pressure seal design is used to provide the seal between the valve body and bonnet for high-pressure applications
  • Rising stem position for visual indication of disc position
  • The valve stem thread is isolated from the pipeline media to reduce corrosion
  • The gate valve has a flexible wedge to provide an effective seal
  • Optional Class A sealing testing available to meet the fugitive emission standard ISO 15848 FE


Design Standards

  • ASME B16.34
  • API 6D
  • API 600
  • GB/T 12234
  • GB/T 12224


  • ASME B16.10
  • GB/T 12221

End Connection

  • ASME B16.5
  • ASME B16.47
  • ASME B16.25
  • GB/T 9113

Test Standard(s)

  • API 598
  • API 6D
  • ISO 5208
  • GB/T 26480
  • GB/T 13927