• Bi-directional in-line bubble-tight seal independent of line pressure
  • Multiple external bubble-tight seals independent of line pressure
  • Direct mechanical three-point adjustment independent of line pressure
  • Independent travel stops
  • Full encapsulation and retention of all leading edges of PTFE sleeve and top seal components
  • Full lip at port openings protects PTFE sleeve
  • Contoured waterway ensures minimum flow turbulence characteristic
  • No body cavities to entrap flow media
  • Positive flow direction indication
  • Drilled and tapped flange actuation-mounting pads independent of cover and top seal assembly


  • Class 150, 300, 600  lbs Flanged
  • Class 150, 300 lbs Screwed Ends
  • Class 150, 300 lbs Socket Weld Ends
  • Full Port Class 150, 300, 600 lbs Flanged

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