5 INTRODUCTION TO DISTRICT HEATING EXPANSION JOINTS District heating pipelines are exposed to temperature expansions caused by temperature fluctuations as a result of a system start-up or the prevailing operating conditions. Depending on the purpose District Heating Expansion Joints can be divided into two main categories: • District Heating Expansion Joints • One-step Expansion Joints Both types are specifically developed for district heating applications and are suitable for ground-surface and under- ground pipeline systems. Belman offers both standard and customised solutions. ONE-STEP EXPANSION JOINTS DISTRICT HEATING EXPANSION JOINTS BG2024 – Subject to changes and misprints www.belman.com
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