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.
