Flange adaptors machined from extruded hollow bar, there is no voids problem on the taper part.
Full face flange adaptor drilled with holes with different backing ring standard are available.
Smart Joint also offer a full package of backing rings suits with HDPE flange adapters, with material Q235 steel, ductil iron, stainless steel, PP coated-steel, PP fiber.
Long Spigot Flange Stub Short Stub End
Full Face flange adaptor IPS/DIPS MJ Adaptors