The important accessories of the bellows expansion joint
Important components are an important guarantee for the normal operation of corrugated expansion joints. These components should be selected appropriately according to different conditions of use.
Internal liner: A cylinder used to reduce the contact between the inner wall of the bellows of the expansion joint and the flowing medium passing through it, also known as the inner sleeve or diversion cylinder. The material of the inner liner can be the same as or different from the bellows.
Limiting rod (Limited rod): set on the expansion joint assembly, generally made of rods or rods, mainly used to limit the range of motion (axial, lateral, angular) of the bellows under normal working conditions, When the main fixing bracket is damaged, this part can prevent the corrugated tube from being excessively stretched and compressed, and at the same time, it can also control the entire internal pressure load and the dynamic load caused by the failure of the bracket.
Protective cover: A device that provides certain protection to the outer surface of the corrugated tube of the corrugated expansion joint to prevent it from contact with foreign objects or mechanical damage. Sometimes called a protective cover.
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