8 1 2015 BRG PREMANT district heating pipe PRE Subject to technical changes 6 264 L bend over main pipe parallel T piece Installation guidelines Sheet 2 DP expansion pad The limb length a depends on the length l Length b is based on the possible movement of the main pipe The total length a b must be surrounded with expansion pads Expansion of the main pipe is also possible on connections in the adhe sion area due to subsequent repair work so expansion pads should also be installed as a precaution The thickness of the expansion pads which are necessary in such cases can be reduced if the connecting pipes are still exposed and can be aligned under low stress when the main pipe is pre stressed DP DP Building Main pipe b Main pipe a

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