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Series 285 Butterfly Valve

Exclusive, angle-disc butterfly valves provide bi-directional, positive shutoff to ANSI 150 standards (285 psig).

Uses a rigid-drive, precision disc-to-shaft connection without load-bearing fasteners in the flowstream.

Available in both resilient-seated and metal-lined configurations.

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Series 285 Butterfly Valve


  • Angle disc with 360° uninterrupted differential sealing surface
  • Double-shaft seals and shaft bushings assure smooth, low-torque operation
  • Non-wetted body available in lug or wafer designs
  • Offered with a variety of pneumatic, electric and hydraulic actuation
  • Series M285 valves are available in several grades of bronze, SST and high alloys such as Monel®, Inconel® and titanium


  • Valve sizes: 3.0″ – 36″
  • Positive shutoff to ANSI 150 standards (285 psig)
  • R285: Resilient lined, wafer or lug butterfly type with replaceable body O-ring flange seals
  • M285: Metal-lined, wafer or lug butterfly type

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