Couplings are designed for gas and pipelines, a wide tolerance system it will fit most standard pipe materials and therefore dramatically reduces the number of dedicated Couplings which need to be stocked for maintenance purposes, It is suitable for steel, GRP, PVC, PE, Ductile Iron, Cast Iron and Asbestors Cement.

PN10 and PN16
For iron pipes (ductile or grey), PVC, or steel.
Ductile iron GGG-40, ductile iron GGG450-10 with epoxy coating
Gaskets of EPDM NBR.

Bolts and nuts:
Steel fasteners coated with zinc. Hot dip galvanized, black galvanized, dacromet coating