BD Series Iris Valve

Ideal for light duty in-line applications where hand operation is required

The Series BD Iris Valve is a light duty valve specifically designed for infrequent operation, which can be used for both in-line and open discharge operations.

They are suitable for handling materials with bulk densities up to 560 Kg / m³.

In addition, the BD offers a simplified construction when compared to other in-line valves in the Mucon range. This simplified construction consequently offers the customer reduced cost, size and weight.


  • For valve sizes between 50mm and 200mm, the Iris Valve body parts are manufactured from aluminium with a Gunmetal Control Ring
  • For valve sizes 250mm to 300mm, the valve is manufactured from aluminum and incorporates a zinc aluminum Control Ring
  • 50mm and 80mm valves are fitted with thumbscrew locking, all other sizes have nylon triggers and 316 stainless steel fasteners


  • The Mucon BD Iris Valve offers a double diaphragm for in-line applications, thus preventing material leakage to atmosphere
  • The Series BD Iris Valve is suitable for lighter duty materials (550-600 Kg / m³)
  • The Series BD Iris Valve is available as standard with thumbscrew locking for 50mm & 80mm bore dimensions, giving infinite flow control
  • Trigger locking mechanism is offered on other sizes
  • End users can chose from a large range of diaphragms to suit their particular application
  • Bore sizes are available from 50mm to 300mm

Mucon Iris Diaphragm Valves by Process Components Ltd

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.


  • For protecting fish in transit and during discharge with use of Polyurethane Coated Nylon Liner
  • As a double flanged outlet valve for Intermediate Bulk Containers (IBC)
  • Outlet valve for Dust Collection hoppers
  • For controlling (not shut off) airflow in ventilation ducting


  • Low cost
  • Low weight
  • No leakage to atmosphere
  • Ideal for lighter duty materials
  • Slim Design
  • Can be used with a wide range of diaphragms
  • Thumbscrew locking on all trigger operated Iris Valves – 100mm diameter and above
  • All valve bodies can be either produced Half Notched or Fully Notched
  • Flurene 177 or other coatings can be offered for valves being used in corrosive environments
  • The BD valve can be certified for ATEX Zone 21D and 22D provided an anti-static diaphragm is used

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