F Series Iris Valve

For glanding applications on shot-blast cabinets or similar duties

The F Series Iris Diaphragm Valve has been specifically designed to gland around large diameter pipes.

The flexible diaphragm is closed around the pipe creating an effective dust tight seal, with the same valve being able to satisfy several different pipe diameters.


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


  • Creates a dust tight seal around pipes
  • Robust construction
  • Able to gland around pipes of various diameters using the same valve
  • Well proven, reliable design


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


  • Non-jamming
  • 100% dust tight seal
  • Easy operation and maintenance
  • Diaphragm is inexpensive and easy to replace
  • Can be manufactured from stainless steel
  • Coatings available for corrosive environments
  • Diaphragms available from a number of 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″)

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