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We offer the world’s largest portfolio of proven high-performance flow control systems, backed by the ongoing development of industry-leading innovations.

High Performance Butterfly Valves - Big Max BX2001

The Durco Big Max BX2001 high-performance, all-purpose valve is designed for precise throttling control or on-off service with lighter weight piping systems and less expensive, energy-efficient actuators.

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Fugitive Emssion
ISO 15848
Fire safe
API 607
End of Line
API 609

  • Broad application versatility via numerous design options: wafer and lug bodies; standard PFA, optional UHMWPE, fire-sealed, Apex® and TriFlex™ seated versions; and multiple packing options
  • Reduced fugitive emissions through triple-leak protection of primary stem seal plus two optional secondary seals
  • Increased capacity and improved flow control with low-profile, double-offset disc
  • Improved personnel and plant safety per adherence to API 609 criteria for safe, reliable anti-blowout protection

  • ASME B16.43
  • ASME B16.5
  • ASME B16.10
  • API 609
  • ISO 5752
  • MSS SP 68
  • API 598
  • MSS SP61
  • ISO 15848-1

Size Range:

  • DN 50 to 900
  • NPS 2" - 36"

Pressure Class Range:

  • PN 10 to 40
  • Class 150 & 300

Seating Material: Soft and Metal

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