Bolts
Bolted flanges connections - Characteristics and components

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Bolts


Bolted flanges connections - Characteristics and components

Author : Simon PLANCHE

Publication date: July 10, 2026 | Lire en français

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4. Bolts

Bolts are the essential component through which preload is applied in a bolted flange assembly. They maintain the contact pressure of the gasket, which is essential for ensuring a leak-tight seal during operation. The bolting system consists of various components, each of which plays a specific role.

4.1 Overall Role of Bolts

Bolts and fasteners are the set of components through which clamping force is applied and controlled (screws, studs, nuts, and washers). They are what generate the preload necessary for the seal and the mechanical integrity of the assembly.

From an operational standpoint, it is the element on which the operator acts: it is through these components that preload is generated in the assembly, an essential condition...

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