Heavy duty rotary valve

Handling powdered and granulated materials in pneumatic conveying systems requires consistent, safe valve operation.

Dose and discharge materials under demanding conditions

TBMA supplies three heavy duty rotary valves, each suited for a specific application purpose. The TBMA H-AR type valve functions mainly as an air or explosion barrier and can be employed as a protective system up to 10 bar when handling dust explosion hazardous materials. The TBMA H-GR type blowing seals are employed in the direct dosing of powdered and granulated materials into pneumatic conveying systems. The TBMA H-AX rotary airlock valves are used for easy discharging of even very poor flowing materials.


  • fast filling capability
  • high accuracy and repeatability
  • certified for use in dust and gas zones
  • can also be used as a protective system