8 1 2015 BRG PREMANT district heating pipe PRE Subject to technical changes 6 520 150 4 3 2 1 6 min 120 150 5 50 0 1 2 3 min 100 1000 4 5 Sectional drainage sectional venting 1 Valve supplied by customer or others 2 Shrink on closure delivered loose 3 Expansion pad 4 Sand 5 Lean concrete 6 Soakaway gravel L as s ta te d Figures in mm L as stated Special version

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