Rehau Rauvipex Uno Pipe 125/200 SDR11
Original price was: £390.53£325.44.£170.86£142.38Current price is: £170.86£142.38. £170.86£142.38 inc VAT Incl. VATExcl. VAT
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Description
RAUVIPEX UNO 125mm – 441019
RAUVIPEX UNO 125mm is a pre-insulated single pipe designed for high-capacity underground heating applications where a single flow or return run is required. It is commonly used in large district heating networks and commercial biomass heating systems.
The pipe can be supplied in continuous lengths, allowing installation with fewer joints compared to segmented pipe systems. The insulated construction helps limit heat loss over long underground distances.
The 125 mm size is typically used for main underground heating distribution lines serving multiple buildings or large heat loads, where higher flow rates are required over extended pipe runs.
RAUVIPEX UNO 125mm is compatible with Rehau approved jointing systems and is commonly specified for underground heating pipework where long-term reliability and capacity are critical.

| Type | d (mm) | s (mm) | di (mm) | Dmax (mm) | U-value W/(mK) | Volume (l/m) | 2.4m x 1.2m Standard coil (m) | 2.8m x 1.6m Special coil (m) | Weight (kg/m) |
|---|---|---|---|---|---|---|---|---|---|
| UNO 25/100 | 25 | 2.3 | 20.4 | 100 | 0.095 | 0.33 | 325 | – | 1.6 |
| UNO 25/125 | 25 | 2.3 | 20.4 | 125 | 0.079 | 0.33 | 215 | – | 2.0 |
| UNO 32/100 | 32 | 2.9 | 26.2 | 100 | 0.116 | 0.54 | 325 | – | 1.5 |
| UNO 32/125 | 32 | 2.9 | 26.2 | 125 | 0.093 | 0.54 | 215 | – | 2.1 |
| UNO 40/100 | 40 | 3.7 | 32.6 | 100 | 0.145 | 0.84 | 325 | – | 1.6 |
| UNO 40/125 | 40 | 3.7 | 32.6 | 125 | 0.109 | 0.84 | 215 | – | 2.2 |
| UNO 50/125 | 50 | 4.6 | 40.8 | 125 | 0.144 | 1.31 | 215 | – | 2.4 |
| UNO 63/150 | 63 | 5.8 | 51.4 | 150 | 0.151 | 2.08 | 165 | 305 | 3.4 |
| UNO 75/175 | 75 | 6.8 | 61.4 | 175 | 0.155 | 2.96 | 110 | 210 | 5.7 |
| UNO 90/175 | 90 | 8.2 | 73.6 | 175 | 0.199 | 4.25 | 110 | 210 | 5.7 |
| UNO 110/175 | 110 | 10.0 | 90.0 | 175 | 0.287 | 6.36 | 110 | 210 | 5.7 |
| UNO 110/200 | 110 | 10.0 | 90.0 | 200 | 0.199 | 6.36 | 105 | 140 | 7.2 |
| UNO 125/200 | 125 | 11.4 | 102.2 | 200 | 0.286 | 8.20 | 105 | 140 | 7.5 |
| UNO 140/225 | 140 | 12.7 | 114.6 | 225 | 0.285 | 10.32 | 90 | 120 | 9.3 |
| DUO 20 + 20/125 | 20 | 1.9 | 16.2 | 125 | 0.111 | 0.21 | 215 | – | 2.4 |
| DUO 25 + 25/125 | 25 | 2.3 | 20.4 | 125 | 0.134 | 0.33 | 215 | – | 2.4 |
| DUO 32 + 32/125 | 32 | 2.9 | 26.2 | 125 | 0.176 | 0.54 | 215 | – | 2.3 |
| DUO 40 + 40/150 | 40 | 3.7 | 32.6 | 150 | 0.200 | 1.31 | 165 | 305 | 3.3 |
| DUO 50 + 50/175 | 50 | 4.6 | 40.8 | 175 | 0.181 | 2.07 | 110 | 210 | 5.7 |
| DUO 63 + 63/200 | 63 | 5.8 | 51.4 | 200 | 0.219 | 2.07 | 105 | 140 | 7.4 |
| DUO 75 + 75/225 | 75 | 6.8 | 61.4 | 225 | 0.253 | 2.96 | 90 | 120 | 9.1 |
1) Special order production
2) 2.8m x 1.2m
The documents and links below provide installation guidance and product information to support the use of the Rehau Rauvipex product range.
Below are some useful videos on Rehau Rauvipex.






