Lineseal III® (Class 150B)

Lineseal III® (Class 150B)

3" - 48” Butterfly Valves


  • Meets or exceeds all applicable requirements of ANSI/AWWA C504 Standard Class 150B; NSF 61 certified
  • Buried service valves: I.D. and O.D. coated
  • Body - Cast Iron ASTM A-126
  • Flanges drilled per ANSI B16.1 Class 125
  • Above ground valves (ordered with either a hand wheel, position indicator on the actuator, or lever): minimum 8 mills epoxy coated interior and exterior; meets AWWA C504 standard
  • Seat-in-body design reduces seat failure due to corrosive buildup in the valve and pipeline
  • Through-disc pinning provides a tight disc-to-shaft pin connection, greatly reducing the possibility of loosening through vibration
  • Disc edge is 316 Stainless Steel
  • Disc - Cast Iron ASTM A-126 (3", 4", 6" Stainless Steel ASTM A351 CF8M)
  • Symmetrical disc for higher Cv and lower head loss
  • Nonmetallic bearings prevent galvanic corrosion and provides lower coefficient of friction
  • Chevron "V" type packing is self-adjusting to last the life of the valve
  • 3"-24" Standard 304 SS hardware


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