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Image butterfly valves
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Image butterfly valves
Image butterfly valves
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Image butterfly valves

Butterfly valves

Butterfly valves consist of three parts: a valve, a shaft and a body. They are used for air and gas ducts or in pipelines.

 

Valve

  • Consists of 1 part or composed of different parts 
  • Shutter construction

Shaft

  • Continuous or a two-piece axle

Body

  • Welded or casted construction
  • Shock- and crack-resistant
  • With wafer, flanges or welding connections

Types of butterfly valves

DSL®DSS®DSK® light applicationsDSK® heavy applications
Simple constructionComplex constructionDouble flanged welded constructionDouble flanged welded construction
Supplied with a compression packing for optimal tightnessFor extreme conditions such as high speed, pressure and temperatureOnly available as wafer typeOnly available as wafer type
Temperatures up to 650°COnly available as wafer typeRound or rectangular constructionRound or rectangular construction
DN 50 mm up to DN 600 mmTemperatures up to 1050°CTemperatures up to 300°CSupplied at both sides with an adjustable compression packing and with an additional bearing
 DN 80 mm up to DN 1600 mmDN 280 mm up to DN 2000 mmTemperatures up to 650°C
  Can be supplied with shutter valves to control the steamDN 250 mm up to 3000 mm
   Can be supplied with shutter valves to control the steam

Options for butterfly valves

  • Additional sealing profile for a higher sealing degree
  • Inflatable seal for 100% sealing
  • Special compression packing
  • Flexible spring steel profile for a higher sealing degree
  • Corrosion-resistant materials
  • Surface protection
  • Vibration type