What are the functions of the expansion joint

Expansion joint, also known as ripple compensator, is used to absorb the displacement and deformation of pipelines, containers or equipment due to thermal expansion and cold contraction, vibration or installation errors. Expansion joints are widely used in chemical, petroleum, power, heating, construction, dust removal and other industries.

Expansion joint, also known as ripple compensator, is a device used to absorb the displacement and deformation of pipelines, containers or equipment due to thermal expansion and cold contraction, vibration or installation errors. Expansion joints are widely used in chemical, petroleum, power, heating, construction, dust removal and other industries.

Main function
1, compensate for thermal expansion and contraction
When the temperature changes, the pipeline or equipment will be heated expansion, pre-cooling contraction, expansion joints can absorb these displacements, to prevent damage to the pipeline or equipment.
2. Vibration and noise reduction
Expansion joints reduce noise and vibration due to mechanical vibration or dielectric shock.
3, compensation for installation error
Pipe and pipe, pipe and equipment in the installation process, expansion joints can make up for the misalignment or dislocation between pipes or equipment.
4, absorb the displacement caused by earthquake or settlement
In the case of earthquake or foundation settlement, the expansion joint can absorb the displacement caused by the above reasons to protect the safe operation of the pipeline system.
sort
1. Metal expansion joint
The structure is composed of stainless steel corrugated pipe, nozzle, tie rod, guide cylinder and other structural parts, according to the direction of compensation displacement is divided into axial, transverse and angular.
2, non-metal expansion joint
The structure is composed of multi-layer fiber fabric skin, structural parts, etc., according to the cross-section shape can be divided into round, rectangular, shaped.
3, rubber expansion joint
The structure is composed of rubber spheres and structural parts.
When selecting expansion joints, it is necessary to combine the properties of the medium, temperature, pressure, displacement and installation environment. After the correct selection, combined with the installation steps of expansion joints, the correct installation and regular maintenance are carried out.