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Laufer Valve

Venturi Powder Control Valve

LIAG® Venturi powder control valves are designed to enable smooth flow of powder through the valve, the middle port is orientated at a 135°/45° angle to the straight through passage. The Y-Arrangement of the inlet creates the ideal flow and vaccum exhaust characteristics for proportioning and dosing. This allows for a complete full bore without reducing the nominal Diameter as often experienced with the use of a butterfly valve. Furthermore the Venturi powder control valve can substitute up to two Butterfly valves, which improves the operating control of the unit.


  • Totally clear passage - no pressure loss
  • No dead pockets
  • No product retention or sticking of solid particles
  • Can be completely dismantled even when welded in place
  • Identical wearing and spare parts as arc valves



Venturi Valve

Operating instruction

Operating instruction


© 2022 LIAG®-LÄUFER International AG

© 2021 LIAG®-LÄUFER International AG