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BDK Double Eccentric Butterfly Valve

BDK™ Double Eccentric Butterfly Valve for regulation and control in water treatment, desalination, power, steel, chemical and process plants. The axis of the disc rotation is double offset to the seat which enables bubble tight shut-off over extended periods of service.

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APPLICATION

  • Regulating and Control 

Features / Benefits

  • Double eccentric / offset design for tight shut-off, reduced seat wear and reduced torque peak.
  • Spherical seat contacts the seat smoothly 
  • Combination of seat and disc materials suitable for up to 600°C 
  • Firesafe
  • Blow Out Proof Steam - Outside the pressure boundary

Product variations

  • Models 91 & 91L
  • Seat for Models 91 / 91L - With memory seal ring
  • Stem for Models 91 / 91L - Minimum 17-4PH for high tensile strength  
  • Disc for Models 91 / 91L - Minimum CF8 (SS304) for corrosion resistance

ansi class rating

  • Class 150, 300

Design standard

  • AP 609

sizes

  • 50mm (2") to 600mm (24")

materials

  • Body: WCB, CF8, CF8M, CF3, CF3M, CD4MCu, CN7M, etc

ends

  • Wafer
  • Lugged

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File title File size Type

Brochure: Weir BDK Valves

2008 KB PDF
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