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Resilient Seat Butterfly Valve

A-T Controls Butterfly Valves cover a wide range of industries from General Purpose to Chemical, Food and Beverage, Pulp and Paper, Waste Water applications and more. The product line features many choices of seat, disc and stem materials which enable you to address a wide variety of applications and media. A-T Controls Butterfly Valves are designed to comply with MSS-SP-67 and API-609 and are tested to comply with API-598 standards. They are compatible with ANSI 125/150 flanges. These valves hold CRNs (Canadian Registration Numbers). Use the search bar on our site to access the CRN certificates; search “CRN”.

  • OS & OSB Series
    Square stem, Sizes up to 12″
    Body material is Ductile Iron (OSB) or Stainless Steel (OS)
  • OC & OCB Series
    DD stem, Sizes 14-24″ | Keyed Stem, Sizes 30-48″
    Body material is Ductile Iron (OCB) or Stainless Steel (OC)

Trim Options

  • Body  Wafer or Lug style, ductile iron or stainless steel
  • Disc  Nickle Plated Ductile Iron, 316 Stainless Steel (polished option), Aluminum Bronze, Nylon Coated Ductile Iron, Undercut 316 SST (polished option), Undercut Aluminum Bronze, and others may be available on request
  • Seat  EPDM, Buna-N, Food grade EPDM, High temp EPDM, Viton®, PTFE
  • Stem  420 SST standard (431 SST, 17-4PH and others available)
  • Stem Bushing  PTFE (Lubricated Bronze available)
  • Stem Seal  Buna (Viton® available)

Product Description