Spiral Wound Pipe Lining Overview

Layla Tong
Aug 1
2 min read

Process Introduction

Spiral Wound Lining Technology is an innovative method for pipeline rehabilitation. This technique involves assembling a dismountable winding machine underground, which then transports prefabricated PVC-U strip profiles and stainless steel bands to the winding machine. The winding machine synchronously wraps the strip profiles with the stainless steel bands, utilizing the interlocking of the profile edges to create a continuous, high-strength, and water-tight reinforced steel-plastic pipe within the existing pipeline.

Application Scope

Applicable Pipe Diameters

DN800 to DN3000

Suitable Pipe Types

Various drainage pipes
Large diameter pipes
Box culverts
Reinforced concrete pipes
PVC pipes

Features

Water-Enabled Operation: Suitable for pipelines that cannot be completely drained.
Interface Misalignment Repair: Effectively addresses issues with misaligned pipe interfaces.
Repairs for Reducing and Irregular Pipes: Applicable to various shapes and sizes of pipes.
Frequent Dynamic Load Areas: Ideal for installation in regions with poor geological conditions and frequent dynamic loads.
Complex Geographic Environments: Capable of performing long-distance pipeline rehabilitation in various complex environments.

Technical Characteristics

Excellent Bending Capability: Suitable for repairing reducing, bent, misaligned, and irregular pipes.
Broad Applicability: Requires minimal water flow during the installation process, making it user-friendly and versatile across multiple pipe types.
Enhanced Flow Capacity: The smooth inner wall of the repaired pipe significantly improves flow capacity and strengthens the pipeline structure.
High Toughness: The liner exhibits excellent ductility and toughness, making it suitable for pipelines affected by dynamic loads.
Simple Installation: The integrated construction equipment allows for high installation efficiency, typically completing repairs within 4-6 hours.
Eco-Friendly Construction: The materials used do not produce pollutants during the installation process, with no chemical reactions involved.
Long Service Life: The installed liner possesses excellent corrosion resistance and aging properties, ensuring a prolonged service life.