Restrained flange adaptor RKS-FL-E



Intended for mechanical connection of plain end of pipe with flanged fittings in waterworks, wastewater and other systems for liquids chemically neutral. Equipped with rims protecting againt sliding a pipe out of an adaptor. Used for iron, steel, plastic, GRP and AC pipes.


  • diameter range DN250-1200 mm
  • adaptor tolerance is ± 7 mm in relation to the outer pipe diameter
  • pipe angular deflection up to ± 3°
  • corrosion protection:
    – epoxy coating
    – optional: hot-dip galvanized
  • EPDM gasket for potable water or NBR gasket for wastewater
  • threaded galvanized pins,
    optional: hot-dip galvanized, stainless steel, acidresistant steel
  • eyebolt
  • possibility to design and produce an adaptor according to individual customer needs: nonstandard height, made of different materials, e.g. stainless steel
  • prevents a pipe from sliding out of an adaptor
  • the design of protection depends on the pipe material and pressure
  • reinforced construction for heavier working conditions and increased product life


  • material acc. PN-EN 10020
  • seal:
    – NBR: PN-EN 681-1
    – EPDM: WRAS, BS 6920-2, ACS
  • flange drilled acc. PN-EN 1092
  • nominal pressure:
    – PN10: DN250-1200
    – PN16: DN250-1200
  • temperature range:
    – EPDM: -10°C / +60°C
    – NBR: -20°C / +80°C