8 1 2015 INT CASAFLEX district heating pipe CFL Subject to technical changes 4 505 Trench dimensions CASAFLEX Width Depth Minimum Outer casing Bending Ø D B T radius mm cm cm m 91 50 80 1 0 111 55 85 1 0 126 55 85 1 2 142 60 85 1 5 162 65 90 1 8 202 70 95 2 8 Installation depth Max installation depth 2 6 m Our approval is required for deeper installations SLW 30 300 kN total load to DIN 1072 if subject to higher traffic loads e g SLW 60 a load distributing superstructure as per RStO75 is required With no traffic load the minimum trench depth T can be reduced by 20 cm Trench profile CFL UNO Figures in cm 2 31 10 D 10 D 10 B 60 30 10 D 10 T 4 4 5 1 0 m Structure 1 Pipe warning tape see sheet CFL 4 345 2 Excavated material compactable 3 Sand washed grain size 0 8 mm 4 CASAFLEX district heating pipe 5 Connector see sheet CFL 4 330 CFL 4 350 CASAFLEX Width Depth Minimum Outer casing Bending Ø D B T radius mm cm cm m 111 30 85 1 1 126 35 85 1 4 142 35 85 1 5 162 35 90 1 8 182 38 90 2 0 Ground plan of trench for house connection Trench profile CFL DUO 10 10 306 0 D T D10 10 B 1 2 3 Figures in cm Ground plan of trench for T piece connection 4 B Rmin0 9 m 0 9 m 0 9 m 0 9 m X A A 0 5 m 0 5 m 0 9 m 0 5 m 0 5 m X 1m when connecting a T piece to CFL or 3m when connecting a T piece to KMR A Pipe distance see sheet PRE 6 500 When connecting KMR DUO to CASAFLEX DUO the same dimen sions are valid for one pipe axis

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