Question

why water and steam pipes of ten have a u-bend in them answer in long? ​

Answer 1

Answer:

when u shut the boiler,the pipes again gets colder.in this process of cooling n heaTING,the gaskets in the flanges gets loose n finnaly get leaked at pressure.so u-bends r provided mainly for expantion n contraction.it also helps in draining out the condensate at the bottom of the u-bend through steam traps.

Answer 2

Answer:

An expansion loop is usually the preferred way of incorporating more flexibility because they are not prone to leakage/breaking like expansion joints are.

The drawback to loops are the resulting pressure

Explanation:

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