Lambda values

The current lambda values for the various types of pre-insulated pipes available from LOGSTOR are presented below.
The lambda values are used to calculate heat loss from LOGSTOR’s pipe systems.

Pipe system

Straight pipe, continuous production, axial process

Straight pipe, conventional production

Straight pipe, continuous production, spiral process


PUR insulation in foamed joints

PUR insulation half shells in joints

Current lambda value

0,023 W/mK

0,027 W/mK

0,026 W/mK

0,022 W/mK

0,027 W/mK

0,028 W/mK

0,036 W/mK  – after 30 years