FDA and EG 1935/2004 compliant rotary valves are used in the food and pharmaceutical industries as well as in biotechnology and genetic engineering for dosing, conveying and discharging bulk goods and as a protective system or device in potentially explosive areas. Execution according to Machinery Directive 2006/42 / EC or ATEX Directive 2014/34 / EU.

Rotary valves with FDA-compliant seals can also be supplied with polished surfaces with a peak-to-valley height of less than 1.0 µm, rounded chamber sheets, GMP and CIP-compatible designs.

Application area

  • Nominal conveying capacity 0.45 – 320 m³/h at 100% filling level
  • Speed 30 rpm.
  • Differential pressure up to 0.35 MPa
  • Temperature range from -20°C to +450°C
  • Rotor diameter from 100 mm to 630 mm

Material variants

  • 1.4301 (AISI304)
  • 1.4404 (AISI 316L, S31603)
  • 1.4571 (V4A)


  • With free shaft end to the drive via elastic coupling or traction drive
  • With motor lantern, torque support or base plate
  • Rotary air lock with rotor extracting device as ZRS EASYCLEAN
  • FDA and EG 1935/2004 compliant execution
  • Housing as cast or welded construction
  • With round or angular inlet and outlet
  • Pressure-shockproof up to 25 bar according to RL2014/34/EU
  • Pressure-shockproof and ignition puncture-proof up to 10 bar according to RL2014/34/EU


  • With wearing strips made of spring steel
  • With elastomer sealing lips made of Vulkollan
  • With speed controller
  • With sealing gas connection
  • With purge air connection for bearing cover and housing