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The Mucon® F Series Iris Diaphragm Valve, specifically designed to gland around large diameter pipes. It has a flexible diaphragm which is closed around the pipe creating an effective dust tight seal, and the same valve is able to satisfy several different pipe diameters.


  • The Inner and outer bodies are made from carbon steel
  • The Inner and outer body rings are supported on sealed for life roller bearings
  • Drive mounting plate made from carbon steel and able to accept a double acting pneumatic cylinder or an electric linear actuator


  • Used for creating a gland seal around large diameter pipes
  • Used for mounting on shot-blast cabinets to ensure no dust escapes into the atmosphere when glanding on tubes It will create a seal around pipes up to 75% of the valve bore diamete
  • It will handle a number of pipe diameters with the same valve


  • Able to be manufactured from stainless steel
  • Coatings are available for corrosive environments
  • Diaphragms are available from many materials in our standard range
  • Electric linear actuator can be supplied with a controller unit
  • Available in sizes 610mm (24”), 762mm (30”) and 1270mm (50”)


  • It is Non-jamming 100% dust tight seal
  • Easy to operate and maintain
  • Diaphragm is inexpensive and easy to replace


  • A dust tight seal is created around the pipes
  • Robustly constructed
    As the ability to gland around pipes of various diameters using the same valve
  • As a well proven and reliable design

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