Type 240-244 Pneumatically Actuated Butterfly Valves


The Type 240-244 series pneumatically actuated wafer style butterfly valve from Georg Fischer is the ultimate choice for the high demands of the industrial world. The unique double eccentric design means the disc is not in contact with the seal in the open position. The result is less wear and operating torques that are half that of our previous model. Better chemical compatibility is achieved because the inner body is the same material as the pipe. The unique Q ring design insures a superior seal with virtually any type of flange without the need for additional gaskets. Additionally, the electro-pneumatic positioner, stroke limiter, and feed back switches give flexibility for integration into a wide variety of applications.

Product Overview

Technical Data:

Size Range:

  • 2” to 12”

Nominal pressure:

  • 150 PSI (bidirectional)

Control pressure:

  • 60-100 PSI


  • Polyvinyl Chloride (PVC)
  • Chlorinated Polyvinyl Chloride (CPVC)
  • Acrylonitrile-Butadiene-Styrene (ABS)
  • Polypropylene PP
  • Polyvinylidene Fluoride (PVDF)


  • EPDM or FPM

Fields of Application:

  • Water treatment
  • Power plants
  • Marine
  • Electroplating
  • Chemical process industry
  • Automotive industry
  • Cooling equipment
  • Aquariums
  • Swimming pool construction 


  • Double eccentric, off-center shaft for reduced wear and lower torque requirements
  • Special Q-ring design eliminates the need for flange gaskets




  • Solenoid air control valve
  • Declutchable manual override
  • Limit switches
  • Electro-pneumatic positioner (4-20mA) or 3-15 PSI
  • ASI control
  • Stroke limiter