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Butter Fly Valves

Butter Fly Valves

Solutions for Corrosion, Abrasion, Clogging, Contamination, and Gas Handling

Hand and pneumatic-operated butterfly valves are efficient, quick-opening valves featuring a metal disc (lined if needed) with pivot axes perpendicular to the flow direction in the pipe. These valves are leak-proof across various substances including liquids, slurries, granular materials, powders, pastes, gases, and acids.

Performance Features

Resilient Seated Concept :

  • Reduced risk of damage compared to metal-on-metal valves.
  • Longer seat life as there are no metallic parts to strain the elastomers.
  • Available in one or two-piece designs for easy seat and disc replacement.
  • Maintenance-free and durable.
  • Epoxy-painted valve bodies with anti-acid varnish for added protection.

Metal-on-Metal Concept :

  • Suitable for high temperatures.
  • Designed in a single part.
  • PTFE seats available only up to 200°C.

Disc Materials :

  • Hard rubber-lined A216 WCB carbon steel
  • PFA-lined
  • Rilsan-lined
  • HALAR/ECTFE-lined 304, 316, or marine 316 stainless steel
  • SS 304, SS 316, SS 316 L
  • Ductile iron
  • Hastelloy C
  • Aluminum bronze
  • Duplex
  • PVDF, PPH

Design/Dimensions :

  • Complies with ISO 5752 standards
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Disc Materials :

  • Hard rubber-lined A216 WCB carbon steel
  • PFA-lined
  • Rilsan-lined
  • HALAR/ECTFE-lined 304, 316, or marine 316 stainless steel
  • SS 304, SS 316, SS 316 L
  • Ductile iron
  • Hastelloy C
  • Aluminum bronze
  • Duplex
  • PVDF, PPH

Inspection Tests :

  • SGS Global Trade Solutions
  • ITS Intertek Testing Services
  • BV Bureau Veritas

Options :

  • Limit switches
  • Solenoid valve
  • Position indicator
  • Air filter regulator
  • 3:15 PSI positioner
  • 4:20 mA electropneumatic positioner or 4:20 mA electronic position transmitter (30°-90° angle)
  • Mono/Triphase AC motor (240V/50Hz to 400V/50Hz)