Chem-Tek Semi-Lug Butterfly Valve

Design Features

  • Semi-Lug Body Design Crossover from Wafer to Lug. All Valves Have Four Drilled and Tapped Lugs
  • Ideal for Exact Alignment
  • Lighter Weight than Full Lug Bodies
  • Lower Cost than Full Lug Bodies
  • Easy Assembly and Maintenance
  • Ease of Maintenance as Valves can Remain in Piping Systems when One Side of the Piping is Removed



  • Body Style: One Piece Body with Extended Neck, Semi-Lug Body Design with Four Drilled and Tapped Lugs
  • Body Materials: Corrosion Resistant Stainless Steel, CF8M-SS316
  • Seat Materials: Buna, EPDM, Viton, PTFE
  • Size Range: 2″ – 12″
  • Pressure Rating:
    • Buna Seat: 200 WOG
    • EPDM Seat: 200 WOG
    • VITON Seat: 200 WOG
    • PTFE Seat: 150 WOG


  • Ideal Butterfly Valve for:
    • Food Processing
    • Pharmaceutical
    • Hospitals
    • Chemical Wash Down

Chem-Tek Semi-Lug Butterfly Valve Downloads: