Inserted Trenchless Pipe lining Service
Pipeline Internal Rehabilitation Project
Inserted Pipe Trenchless Lining Rehabilitation Technology is an advanced method that installs a high-pressure continuous composite hose inside existing metal pipelines, creating a durable “pipe-within-a-pipe” composite structure. During operation, the flexible hose tightly adheres to the host pipe wall.
Key Applications:
- Repair of high-pressure corroded pipelines in oilfields
- Renewal of municipal water supply lines
- Rehabilitation of thermal pipelines
- Repair of industrial/mining water pipelines
- Gas pipeline repair or pressure upgrade projects
Characteristics and Applications of Internal Pipeline Rehabilitation
Our HDPE Lining Technology: Rapid, High-Strength Trenchless Rehabilitation
This advanced HDPE pipe lining method delivers exceptional operational efficiency and long-term performance. The process offers minimal loss of flow area and navigates large-radius bends with ease. By creating a jointless, sealed system where the liner is flanged at terminations, it provides superior integrity and leak-proof security. The result is a new pipeline within the old one that boasts significantly higher pressure capacity. Furthermore, the technique requires less stringent cleaning, enables longer single-pass installation distances, and drastically reduces excavation needs and overall downtime. This translates to a remarkably fast construction cycle, getting your system back online faster and stronger than ever.
Key Features:
- Corrosion Resistance: Non-metallic materials provide excellent chemical resistance
- Pressure Capacity: Withstands 1.6 MPa working pressure (4.8 MPa burst pressure)
- Rapid Installation: 300-400 meters/hour construction speed
- Bend Navigation: Passes through 5D radius (90°) elbows without segmentation
- Diameter Range: DN50-DN1200 pipeline rehabilitation
- Long-Distance Capability: Single-pass installation up to 5km continuous length
Primary Applications:
- High-pressure corroded pipeline repair in oilfields
- Municipal water supply line renewal
- Thermal pipeline rehabilitation
- Industrial/mining water pipe repair
- Gas pipeline restoration and pressure upgrades
Trenchless Pipe Lining Rehabilitation Technology
Industry Challenges
Pipelines in oil/gas and chemical industries frequently suffer from internal wear, corrosion, and breaches – causing production downtime and environmental contamination.
Technology Advantage
This trenchless rehabilitation method repairs pipelines without dismantling, eliminating:
- Production stoppages
- Environmental risks
Technical Process
The pipe insertion method is a high-efficiency solution for aging pipelines:
- HDPE/HDPO/composite hoses are swaged (temporarily reduced in diameter)
- Inserted into host pipes
- Memory effect allows liner to re-expand, creating a tight “pipe-in-pipe” bond
1.Pipeline Assessment Construction Preparation 2..Pipe Cleaning & Purging 3.Pressure Testing & Leak Repair 4.Excavation & Pipe Sectioning 5.Pressure Test & Commissioning 6.Pressure Restoration Joint Connection 7.Pipe Insertion 8.Pull Force Testing
Structure of the Trenchless Composite Hose
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Beijing Jinshiwan is a leading integrated provider of pipeline technology and services, combining high-end equipment manufacturing with professional engineering expertise. We deliver safe, reliable, and innovative full-lifecycle pipeline solutions for the global oil & gas, chemical, and utility industries.
Pipeline Construction & Installation
- Cross-country pipeline construction
- Pipeline installation and commissioning
- Plant pipeline systems installation
- Pipeline relocation and modification
Pipeline Maintenance & Repair
- Hot tapping and pressure tapping services
- Pipeline plugging and isolation services
- Emergency pipeline repair
- Pipeline rehabilitation and lining
- Composite sleeve repair (B-sleeve installation)
- Corrosion protection and repair
Specialized Technical Services
- Pipeline integrity management
- In-line inspection support services
- Non-disruptive live line modifications
- Pipeline pressure testing
- Pipeline cleaning and drying
Equipment & Manufacturing
- Hot tapping machine manufacturing
- Pipeline plugging equipment production
- Custom pipeline fittings fabrication
- Special valve manufacturing
Our International Service Advantages:
• 24/7 emergency response capability
• API and ASME compliant standards
• Multilingual project management
• Global shipping and logistics support
• On-site technical supervision worldwide
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