International Processing Trade Fair for Powder, Bulk Solids, Fluids and Liquids

26 - 28 September 2023 // Nuremberg, Germany

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Exhibitors & Products POWTECH 2023
Zoom Image LOGO_H-AX drop-through valve

H-AX drop-through valve

LOGO_H-AX drop-through valve

H-AX drop-through valve

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H-AX drop-through valve


TBMA high-duty H-AX drop-through rotary valves are equal to the H-AR valves and are used when the inlet size is more important than the rotor volume. The relatively large inlet ensures that even the most poorly flowing products are efficiently discharged.

The H-AX valves are equipped with a round and a square connecting flange. This allows the valve to be used as a transition piece from round to square or vice versa. This is favourable for the installation height and saves any mounting parts.


In brief

  • Dosing of powder and granular materials
  • Absorbing differential pressure due to minimal air leakage
  • Suitable for 24/7 industrial applications
  • Relatively large inlet for products with poor flowability
  • Outboard bearings, dust-tight and sealed for life
  • Suitable as transition piece from round to square of vice versa
  • Differential pressure 1,5 barg
  • ATEX 2014/34/EU certified (optional)


  • Flange sizes: DN150 – DN350 (round)
  • Flanges: drilled in accordance with PN10 (round)
  • Rotor volume: 2,5 up to 34 ltr/rev
  • Differential pressure: 1,5 barg
  • Standard design temperature: 120 °C
  • Flame proof: no
  • Explosion proof: up to 10 barg


  • Easy detachable execution (D*)
  • Corrosion resistant version for chemically aggressive products (3C/3N)
  • Abrasion resistant version for abrasive products (4C/4TCO)
  • Specially coated version for sticky products
  • High temperature version up to 600 °C
  • Customer-specific design

POWTECH offers concrete solutions for packaging-intensive industries. Industry guide


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