Alutal Measure & Trust

OC/OS Series: A-T Resilient Seated Butterfly Valves

A-T Controls Butterfly Valves cover a wide range of industries, from General Applications to Chemical, Food and Beverage, Pulp and Paper, wastewater applications and more. The product line features many seat, disc and stem material options that allow it to suit 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.

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The product

OS and OSB series

  • Square shank, sizes up to 12″
  • Body material is ductile iron (OSB) or stainless steel (OS)

OC and OCB series

  • DD Stem, Sizes 14-24″ | Keyed Stem, Sizes 30-48″
  • Body material is ductile iron (OCB) or stainless steel (OC)


  • Body Wafer or Lug style, ductile iron or stainless steel
  • Nickel plated ductile iron disc, 316 stainless steel (polished option), aluminum bronze, nylon coated ductile iron, 316 stainless steel recess (polished option), bronze aluminum recess and others can be available upon request
  • Seat EPDM, Buna-N, Food Grade EPDM, High Temperature EPDM, Viton®, PTFE
  • Stem 420 SST standard (431 SST, 17-4PH and others available)
  • PTFE rod bushing (lubricated bronze available)
  • Stem Seal Buna (Viton® availabl
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Autossustentável energeticamente


Clientes ao redor do mundo

ISO 9001

Certificada desde 2006


Peças entregues mensalmente

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