Metal Expansion Joints / Slip Type Expansion Joint For Expansion Contraction

Slip-Type Expansion Joint

The slip-type expansion joint is mainly used to compensate for the expansion, contraction, and compression of pipelines due to temperature changes, pressure variations, or geological conditions. It can effectively absorb displacement in the pipeline system, prevent the concentration of stresses and equipment damage caused by displacement, and ensure the normal operation of the pipeline system. Additionally, the expansion joint can also absorb additional displacement caused by earthquakes, wind load,etc., improving the seismic performance and wind resistance of the pipeline system.

The raw materials for slip-type expansion joint have various options, commonly including metal and non-metal materials. Metal materials include carbon steel, stainless steel, alloy steel, etc., which have high strength and corrosion resistance but are heavy. Non-metal materials include rubber, fluoroplastics, silicone, etc., which have good corrosion resistance and flexibility but lower strength.

Metal expansion joints are suitable for harsh pipeline environments such as high temperature, high pressure, and strong corrosion, with strong pressure and temperature resistance. Non-metal expansion joints are suitable for general pipeline environments, mainly used to absorb displacement and vibration of the pipeline.

Application Scenarios:

Thermal pipelines:Given that thermal pipelines undergoes significant temperature changes,slip-type expansion joints are used to absorb thermal expansion and contraction of pipelines, ensuring the safety of pipes and equipment.

Vibrating pipelines: Slip-type expansion joints are used to absorb the impact of vibrations on pipelines, protecting pipes and equipment, especially in pipelines with significant vibrations, such as those at the outlet side of centrifugal pumps.

Buried piping: Slip-type expansion joints are used to absorb deformation caused by soil pressure and geological conditions, ensuring the safety of pipes and equipment.

Overhead pipelines: Slip-type expansion joints are used to absorb deflection in large-span overhead pipelines like those pipelines in large industrial plants,protecting pipes and equipment.

In summary, slip-type expansion joint are widely used in various pipeline systems to effectively absorb thermal expansion, contraction, and vibrations, ensuring the safety of pipes and equipment.