Inserted Hoses lining Service

Pipeline Internal Rehabilitation Project

Inserted Hoses (IH) Trenchless 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

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

Pipe Insertion 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