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What are metallic bellows and types of Bellows?

 

What are metallic bellows?

The main element of the expansion joint, which consists of one or more convolutions, is called bellows.  The performance of the bellow depends upon the geometric bellows. Hence the type of raw material and its properties, its geometric features, other influencing designing factors, construction or manufacturing method, and performance testing bellows are necessary to study.

Metallic bellows


What are the types of bellows?

Formed Bellows

These types of Expansion Joint  used in the low-pressure system they are cost-effective and can be a substitute to the system

Fabricated Bellows

Formed from a thin wall tube, formed bellows contains only longitudinal welds, and exhibits significant flexibility

Formed Bellows  shapes are made from single or multiply plies of suitable material (usually stainless steel) ranging in thickness from .004" to .125" and greater, and in diameter of 3/4 to over 12 ft




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