Light duty rotary dust valve

In some light industrial applications there is limited pressure differential for valve operation.

Provide an airlock or explosion barrier with minimal pressure change

The TBMA S-AX ‘Smart-Lite’ dust valve is specially designed for use in combination with dust filters, cyclones, product separators and dosing systems.
S-AX valves are manufactured in three models with 6 or 8 blade rotor execution suitable for internal, classified and explosive zones.
Having a square flange and a circular flange, it is possible to use this valve as a connection, replacing expensive transition flanges and reducing installation height.


  • economical solution
  • can be used as a transition flange
  • suitable for protective system
  • intrinsically safe