Olivier coupling for drilling pipes starting from ∅133mm – 5” ¼

A new Olivier coupling was developed for use on small drilling pipes with a diameter of 133mm – 5” ¼ (219mm – 8″5⁄8) and larger. This for various applications such as FDP, Soilmix, CFA, … This coupling uses the patented bayonet plugs. This ensures that no thread wires are used anywhere.

  • Full round coupling (No hex or octagon)
  • Slides 500mm (20″) into each other
  • Locked with 16 bayonet plugs
  • No screw thread
  • Inner passage 125mm (5″)
  • High-pressure concrete and grout injection (Available with or without rubber seal)
  • Plugs completely sealed off from the inside of the drill pipe so no grout can escape
  • Coupling has almost the same diameter as the pipe = less wear
  • Plugs rounded into the radius of the coupling = less wear
  • Always easily detachable: Once the plugs are out, the couplings can be rotated relative to each other
  • High drilling torques, axial and radial forces
  • Applicable for various techniques:
    • FDP
    • CFA
    • Soilmix
    • Geothermal
  • Two types of weld connection available
  • Couplings available separately and from stock

Olivier couplings are available for pipes from ∅219mm (8″5⁄8) up to ∅508mm (20″)

This product is protected by one or more of the following patents: AU2022210051A1; BE1029070A1; BE1029070B1; CA3204760A1; CN116802360A; WO2022157650A1, corresponding patents and pending patents.