8 1 2015 COOLFLEX CLX Subject to technical modifications Energy losses Dimensions DN 20 DN 40 Heat losses q W m COOLFLEX U value Average operating temperature TB C W mK 6 8 10 12 14 25 76 SDR 11 0 1254 0 5 0 3 0 0 0 3 0 5 32 76 SDR 11 0 1588 0 6 0 3 0 0 0 3 0 6 40 91 SDR 11 0 1657 0 7 0 3 0 0 0 3 0 7 50 91 SDR 11 0 2243 0 9 0 4 0 0 0 4 0 9 63 126 SDR 11 0 1941 0 8 0 4 0 0 0 4 0 8 75 126 SDR 11 0 2523 1 0 0 5 0 0 0 5 1 0 90 162 SDR 11 0 2269 0 9 0 5 0 0 0 5 0 9 110 162 SDR 11 0 3287 1 3 0 7 0 0 0 7 1 3 125 182 SDR 11 0 2275 0 9 0 5 0 0 0 5 0 9 Installation type CLX Pipe distance Covera above pipe Ground temperature Soil conductivity Conductivity of PUR foam Conductivity of PE pipe Conductivity of PE casing On request we shall be glad to calculate the heat losses for surface mounted pipe systems 2 pipe laid in the ground a 0 10 m H 0 60 m TE 10 00 C lE 1 2 W mK lPU 0 0234 W mK lPE 0 40 W mK lPE 0 33 W mK Heat loss during operation q U TB TE W m U Heat transfer coefficient W mK TB Average operating temperature C TE Average ground temperature C VL Flow RL Return a 0 1 m H 0 6 m TE lE Applications laid in the ground 2 210

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