FDA rotary valves

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

FDA-compliant rotary valves can also be supplied with polished surfaces with surface roughnesses below 1.0 μm, rounded chamber plates, GMP and CIP-compliant design.

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 +80°C
  • Rotor diameter from 100 mm to 630 mm

Material variants

  • 0.6020 (GG)
  • 1.0570 (Steel)
  • 1.4301 (V2A)
  • 1.4404 (AISI 316L, S31603)
  • 1.4571 (V4A)
FDA locks

Type

  • Drive via directly flanged geared motor or with free shaft end
  • With motor lantern, torque support or base plate
  • With rotor extraction device as ZRS EASYCLEAN
  • Sealing via radial shaft seals or packing glands
  • Housing as cast or welded construction
  • With round or angular inlet and outlet
  • Cellular impellers with up to 14 chambers
  • Surface primed, painted, blasted or chemically nickel-plated
  • Structurally safe
  • Pressure shock resistant up to 25 bar according to RL2014/34/EU
  • Pressure shock resistant and ignition proof up to 10 bar according to RL2014/34/EU

Variants

  • With wearing strips made of spring steel
  • With wear protection in the inlet
  • With speed controller
  • With chain drive
  • CIP-capable with FDA suitable seals
  • Polished versions with peak-to-valley height up to 1.0 µm