AD Series Iris Valve 

Our most popular Iris Valve for in-line applications requiring hand operation

The Series AD valve is the most popular of Mucon’s hand operated valve range. The AD is a double diaphragm Iris Valve and is ideal for in-line applications with no leakage to atmosphere.


  • The double diaphragm means it is ideal for in-line applications with no leakage of material to atmosphere
  • Robust construction for medium to heavy duties, handling materials up to 1600 Kg / m³
  • In-situ Iris diaphragm adjustment reduces maintenance time
  • Its proven design is suitable for frequent operation
  • Our large range of diaphragms can suit an enormous range of applications
  • Bore sizes from 80mm to 450mm

Mucon AD Series Iris Valve

The original and best Iris Diaphragm Valve on the market today. The Mucon Iris Valve provides a unique solution to flow control and glanding applications whether hand operated or powered. Now produced by Process Components Ltd the diaphragm provides almost infinite control over the flow of product through it or the size of parts it can gland around. Used in tableting applications it provides a gentle closure that helps to reduce product damage. Available in a range of types, materials and drive configurations to suite process requirements.


  • Outlet valve for Silos, Bins, Hoppers and Chutes
  • Can be used for In-Line applications
  • Discharge from Sifters, Ribbon Mixers, and Double Cone Blender outlets
  • For manual bagging of material where frequent operation is involved
  • Controlling discharge from containers into weigh hoppers
  • Closing the ‘necks’ of Big Bags where a valve smaller than the Series JS12 is required


  • The Iris Valve is non jamming
  • Full bore diaphragm opening (no restriction to product flow)
  • No mechanical wear of the valve from abrasive products
  • Diaphragms and liners are easy and inexpensive to replace
  • Easy valve operation and maintenance
  • Safe, gentle and strong. Therefore an ideal solution for many diverse applications
  • All valve parts can be produced in 316 stainless steel (Except for the AD3)
  • Flurene or other coatings are available for valves working in corrosive environments
  • Stainless steel clamp rings
  • Multi-notching of the valve is available to enhance flow control
  • Hand wheel operation is available for sizes 150mm to 300mm

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