Trenchless underground sewer repair by CIPP LED or mercury lamp UV
cure system
UV curing technology is a form of CIPP technology of in-situ curing
method. Its principle is to use the irradiation of UV light with a
special wavelength to make the recycled materials in the existing
pipeline polymerize and harden under the irradiation of UV light
through photosensitizer to form a continuous new pipeline, and then
repair the damaged underground pipeline.
During the repair process, the glass fiber infiltrating the resin
is pulled into the pipeline to be repaired from the inspection
manhole through professionals and special equipment, and the pipe
orifices at both ends are closed. The glass fiber inner liner is
filled with compressed air. Under the strict control of the
ultraviolet automatic control equipment, the purpose of repairing
the pipeline can be achieved in only 3-5 hours.
The seals at both ends of the glass fiber pipe are cut off, and the
pipeline can be drained normally.
With the accelerating process of urbanization in China, the
management of urban infrastructure is becoming more and more
difficult. As a key component of the urban operation, the
underground drainage pipeline plays an irreplaceable role. The
trenchless repair technology of underground pipelines has been
continuously accepted and recognized by society. The non-excavation
repair project of the drainage pipeline adopts the light-curing
non-excavation repair technology, which has the technical
advantages in the process of repairing long-distance construction
with large buried depth and large pipe diameter.
The light-curing trenchless repair technology has significant
practical and social significance in quickly and reliably solving
the problems of water leakage, cracks, and corrosion of urban
drainage pipelines.
DAO is specialized in UV Cure equipment and materials.
| Application | Trenchless repair sewers |
| Range | DN600 |
| Light | LED or mercury |
