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Double Offset Butterfly Valve

Key Applications

  • Used as control and cut-off equipment for smelting, chemical engineering, sewage engineering, environmental protection system and control subsystems of water, power, and steel plants.

Design Features

  • Sizes from NPS 2” to 48”(DN50 to DN1200)
  • CLASS 150 to 600 (PN20 to PN100)
  • Operating temperature -46℃ to 250℃
  • Compact structure, easy installation and disassembly, repair friendly and light weight
  • The eccentric structure is adopted to reduce the friction of sealing ring and extend the service life of valve.
  • Small operating torque easy for opening and closing
  • Good sealing performance of zero leakage.

Reference

Design Standards

  • API 609
  • ASME B16.34

Face-to-Face

  • ASME B16.10
  • GB/T 12221

End Connection

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

Test Standards

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