Tangential rotary valves are used for conveying and metering coarse-grained bulk materials and granulates. Due to the offset inlet, which is tangentially connected to the cell wheel, the medium is pushed back again by a scraper. This prevents the conveying medium from jamming between the cellular wheel and the housing and thus gentle conveyance of the bulk material is achieved.

Application area

  • Nominal conveying capacity 0.45 – 320 m³/h at 100% filling level
  • Speed 30 rpm.
  • Differential pressure up to 0.05 MPa
  • Temperature range from -20°C to +60°C
  • Rotor diameter from 100 mm to 630 mm

Material variants

  • 0.6020 (GG)
  • 1.0570 (Steel)
  • 1.4301 (V2A)
  • 1.4571 (V4A)


  • Drive via directly flange-mounted geared engine as TZS COMPACT
  • With free shaft as TZS STANDARD
  • With gland seal packing and external ball bearing as TZS HEAVYDUTY
  • With open cell impeller with 8, 10, 12 chambers
  • Sealing with radial shaft seal or stuffing box
  • Housing as welded construction
  • With round or square inlet and outlet
  • Surface primed, painted, blasted, stained or chemically nickel-plated
  • Constructively safe


  • With wearing strips made of spring steel
  • With wear protection inlet
  • With speed controller
  • With adjustable scraper