Single Crossover size:Europress Carbon Steel Single Crossover 22 x 15mm Europress 316L Spigot Elbow is

Europress 316L Spigot Elbow is an equal Spigot x Adaptor fitting

Europress 316L Elbow Adaptor 90° with Male Thread

The pipe diameter is d and the Roll Groove diameter is D

The full face Gaskets are essential for sealing between Flanges and or Backing RingsThese are dimensioned to match series DIN

The Tee is for joining  pipes of equal diameter and has a shoulder  for location of correct insertion depth

Single Crossover size:Europress Carbon Steel Single Crossover 22 x 15mm Europress 316L Spigot Elbow isThe Single Crossover is a pair of fittings with one half bridging over the other half to provide 2 parallel branchlines at 90 degrees to the mainline pair