Complete Equipment Solutions for Trenchless Pipe Rehabilitation

CIPP (Cured-in-Place Pipe) Equipment is designed for the installation and curing of resin-impregnated liners, enabling the rehabilitation of damaged pipelines without excavation. It provides a fast, cost-effective, and environmentally friendly solution for renewing underground sewer, stormwater, industrial, and utility pipelines while minimizing disruption to traffic and daily operations.

Key Features

• Complete CIPP rehabilitation equipment solution

• Suitable for municipal, industrial, and drainage pipelines

• Compatible with felt and fiberglass CIPP liners

• Supports air inversion and water inversion methods

• Available for steam, hot water, or UV curing processes

• High installation efficiency with reduced project downtime

• Durable construction for demanding job site conditions

• Custom configurations available for different pipe diameters and project requirements

• Technical support and operator training provided

Applications

• Municipal sewer rehabilitation

• Stormwater drainage rehabilitation

• Industrial pipeline rehabilitation

• Culvert rehabilitation

• Underground utility pipeline renewal

• Trenchless pipeline maintenance projects

Equipment Range

• Our CIPP Equipment portfolio includes:

• CIPP Inversion Drums

• Wet-Out Systems

• Steam Curing Equipment

• Hot Water Curing Equipment

• UV Curing Equipment

• Air Compressors and Steam Generators

• Calibration Rollers

• Resin Mixing Equipment

• Installation Accessories

Why Choose Our CIPP Equipment?

With years of experience in trenchless technology, we provide complete CIPP equipment solutions designed to improve installation efficiency, reduce operating costs, and deliver reliable rehabilitation performance. From standalone machines to complete turnkey systems, we offer customized solutions backed by professional technical support and worldwide service.

Working Principle

CIPP Cured-In-Place Pipe Inversion Lining is one of the most widely used trenchless pipe rehabilitation technologies. It repairs damaged pipelines by inverting a resin-impregnated flexible felt or fiberglass liner into the existing pipe using air pressure or water pressure. After the liner is fully installed, it is cured with hot water, steam, or ambient-curing resin systems to form a seamless, corrosion-resistant structural pipe within the original pipeline.

Unlike UV-CIPP, which uses ultraviolet light for curing, traditional CIPP inversion relies on pressure inversion and thermal curing.

The repair process typically includes the following steps:

1. Pipeline Inspection

• Inspect the pipeline using CCTV to assess defects, pipe diameter, and length.

• Clean the pipeline using high-pressure water jetting or mechanical cleaning equipment.

2. Liner Preparation

• Saturate a polyester felt liner or fiberglass liner with epoxy, vinyl ester, or polyester resin using a wet-out system.

• Protect the impregnated liner from premature curing during transportation and installation.

3. Liner Inversion

• Install the liner into the inversion drum.

• Use compressed air or water pressure to invert the liner through the pipeline.

• As the liner turns inside out, the resin-coated surface is pressed tightly against the host pipe wall.

4. Inflation and Positioning

• Maintain constant internal pressure to ensure intimate contact between the liner and the existing pipe.

• Remove wrinkles and ensure uniform liner thickness.

5. Thermal Curing

Depending on the resin system, curing may be carried out using:

• Hot water circulation

• Steam curing

• Ambient-temperature curing for certain resin systems

The heat initiates resin polymerization, transforming the flexible liner into a rigid, structural composite pipe.

6. Cooling

• Gradually cool the cured liner while maintaining internal pressure to prevent shrinkage and deformation.

7. Service Reinstatement

• Reopen lateral connections using robotic cutting equipment.

• Perform CCTV inspection and pressure or leak testing before returning the pipeline to service.

Applications

CIPP inversion lining is widely used for rehabilitating underground pipelines in various sectors.

Municipal Sewer Systems

• Sanitary sewers

• Combined sewer systems

• Stormwater drainage pipelines

Water Infrastructure

• Potable water pipelines using certified liner systems

• Non-pressure drainage pipelines

• Irrigation pipelines

Industrial Pipelines

• Industrial wastewater pipelines

• Chemical drainage systems

• Cooling water pipelines

Oil & Gas Facilities

• Process drainage pipelines

• Utility pipelines

Transportation Infrastructure

• Highway drainage pipelines

• Railway drainage systems

• Airport drainage networks

Commercial and Residential Buildings

• Building drainage systems

• Underground service pipelines

Suitable Pipe Materials

The CIPP inversion system can rehabilitate pipelines made from:

• Concrete pipe

• Reinforced concrete pipe RCP

• Clay pipe

• Brick sewer

• Cast iron pipe

• Ductile iron pipe

• Steel pipe

• PVC pipe

• HDPE pipe

• Asbestos cement pipe where regulations permit

Suitable Defects

CIPP inversion lining is effective for repairing:

• Longitudinal cracks

• Circumferential cracks

• Joint separation

• Corrosion

• Root intrusion

• Infiltration and exfiltration

• Pipe abrasion

• Internal surface deterioration

• Leakage

• Minor deformation

• Structural weakening caused by aging

Typical Diameter Range

Depending on the inversion equipment and liner system:

• DN100–DN600 small-diameter systems

• DN150–DN1200 standard municipal systems

• DN150–DN1600 large-diameter systems

• Customized systems can rehabilitate pipelines up to DN2000 or larger.