Main pipes and branches up to dimension 323.9 mm are delivered in reinforced designs in order to withstand axial forces corresponding to stresses of 330 MPa, if the branch dimension is smaller than the main pipe dimension.
In case main pipe and branch have the same dimension, T-pieces can withstand axial forces corresponding to stresses of 190 MPa.
Preinsulated T-pieces are produced in accordance with EN 448.
T-pieces > ø323.9 must always be documented by the design responsible person specifically as regards project class C after EN13941-1.
Internal pressure = 25 bar (grey = 16 bar)
All preinsulated T-pieces are delivered with 2 embedded wires. A copper wire and a tinned wire.
The tinned wire always runs into the branch, whereas the copper wire runs straight through.