from DN300

Stepped version, for connection between pipes of PE, PVC, steel and cast iron, whenever the diametre difference is bigger than the standard tolerance. End restrained fittings, used whenever the axial thrust of pressure has to be compensated.


  • Wide range
  • Wide tolerance
  • Resistant to corrosion
  • Separate hydraulic sealing and end restraint
  • Multi-material end restraint system


  • Single or separate bolts
  • 30mm tolerance range on pipe outside diametre
  • Pipe Locking System
  • PN10-16 rated grippers – other pressures on request
  • Working pressure PN 16

Pipe materials

  • Steel
  • Cast Iron
  • HDPE
  • PVC


  • Body and compression flange: S235JR Steel
  • Bolts, nuts, washers: zinc coated Steel – alternative: grade A2 AISI 304 SS
  • Sealing rings: EPDM or NBR on request
  • End restraint grippers: tempered Steel with Dacromet coating – in alternative: martensitic stainless steel grippers
  • Anticorrosion coating RILSAN NYLON 11

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