Beijing Urban-Renewal Solutions delivers Spray-In-Place Pipe (SIPP)
technology—an integrated trenchless rehabilitation system combining
proprietary polymer lining materials, intelligent spray robotics,
and mobile command infrastructure.
SIPP enables functional, semi-structural, and full structural
renewal for aging pipeline networks across municipal water supply,
drainage, district heating, oil & gas, petrochemical, and
industrial applications.
Unlike conventional prefabricated liner methods that rely primarily
on expansion pressure and mechanical contact, SIPP creates a true
bonded interface—sprayed and cured directly onto the prepared pipe
wall to form continuous adhesion with the substrate. This bonding
advantage delivers superior interface integrity, load transfer, and
resistance to under-film leakage pathways, while enabling seamless
rehabilitation through complex geometries including bends, diameter
transitions, inverted siphons, and single-entry pipelines. The
bonded lining interface is particularly critical for pressurized
systems, where it resists debonding and interface movement under
both internal pressure and external loads.
By replacing disruptive excavation with precision,
micro-disturbance application, SIPP minimizes impact to traffic,
infrastructure, and surrounding environments—delivering faster,
more durable, and more sustainable pipeline renewal with reduced
excavation, restoration work, and overall project footprint.
Beijing Urban-Renewal Solutions is an innovation enterprise
integrating materials R&D/production and construction services
in the field of trenchless rehabilitation. We are committed to
helping cities become safer, lower-carbon, and healthier.
What SIPP enables
- Functional rehabilitation: Restore corrosion protection and flow performance with a seamless
in-situ lining.
- Semi-structural rehabilitation: Strengthen aging pipes while maintaining reliable operation under
real-world constraints.
- Full structural rehabilitation: Deliver enhanced structural integrity for demanding conditions and
long service life.
Where we work
- Municipal water supply (pressurized)
- Drainage networks
- District heating
- Oil & gas
- Industrial pipelines
Why choose SIPP
- Bonded lining technology: Creates a continuous bond with the pipe wall for superior
structural performance
- Handles complex geometries: Adapts to bends, transitions, and irregular pipe configurations
- Proven for pressurized systems: Engineered specifically for pressure-bearing pipelines
- Minimal disruption: Trenchless application reduces excavation and project timeline
Why SIPP is different
True bonded lining interface
- Sprayed and cured directly onto the prepared pipe wall to form
continuous adhesion with the substrate — unlike many pre-fabricated
liners that are primarily expanded/pressed against the host pipe.
- Improves interface integrity and load transfer, and helps reduce
the risk of under-film pathways for leakage/corrosion.
Seamless in-situ application
- Sprayed in place to conform to bends, variable diameters, offsets,
and irregular geometry.
- Eliminates seams and joints typical of prefabricated liner methods.
Superior flexibility under complex conditions
- Adaptable process parameters and equipment configurations for
challenging sites, including inverted siphons, trench/river
crossings, reducer (transition) sections, and single-entry (limited
access) pipelines.
- Proven performance in extreme conditions: sub-zero temperatures
(-21°C), high-temperature industrial applications (95°C+), and
continuous-flow scenarios.
Distinct advantages for pressurized pipelines
- Bonded-to-substrate lining is a key requirement for
pressure-bearing systems — helping resist debonding, leakage
pathways, and interface movement under internal pressure and
external loads/groundwater pressure.
- Designed around the reliability and performance requirements of
pressure-bearing systems.
Minimal disruption delivery
- Trenchless, precision application that minimizes disruption to
traffic and surrounding environments.
- Faster turnaround with reduced excavation, restoration, and overall
project footprint.
Track record
- Proven deployment: Across major cities including Beijing and Guangzhou, spanning 10+
provinces and 25+ complex rehabilitation projects
- National recognition: Listed in a national advanced applicable technology/product
directory
- Standards leadership: Active participation in compiling technical standards and related
specifications for polymer spray lining trenchless rehabilitation
- Long-term performance: First domestic SIPP application (2005) continues stable operation
after 20+ years
- IP portfolio: Protected by multiple patents and software copyrights
What we've built
- Scientific and efficient management structure; ISO certifications;
AAA enterprise credit certification
- Full-chain R&D capabilities around new materials and equipment
for urban renewal infrastructure
- Self-developed intelligent spray robotics and mobile command
systems
- Comprehensive testing and validation protocols (lab + full-scale)
- Standardized quality assurance systems and engineering governance
