Heat Shrinkable Wraparound Sleeves (HSS) for Pipeline Rehabilitation

High-Performance External Coating Repair for 6" and 10" Buried Carbon Steel Pipelines

Product Overview

Our Heat Shrinkable Wraparound Sleeves (HSS) are a premium, field-applied coating repair system designed for the rehabilitation and external corrosion protection of buried onshore carbon steel pipelines. Engineered to meet the most stringent international standards, this system is specifically designed for 6-inch and 10-inch pipeline spools, ensuring seamless restoration of the pipeline's protective barrier.

Manufactured in the USA with brand-new, virgin materials, these sleeves are ideal for pipelines operating at maximum temperatures of up to 85°C (185°F) and are fully compatible with a wide range of existing plant coatings, including PE, FBE, DFBE, and Coal Tar.

Key Features & Technical Compliance

Our heat shrink sleeves are built for durability and long-term performance in demanding soil environments.

• Industry Standards Compliance: Fully certified and tested to meet ISO 21809-3 (Class 14 B2) and EN 12068 (Class C60 UV / Class C80 UV) standards.

• No Soil Stress Restrictions: The high-integrity adhesive system provides exceptional resistance to soil stresses, normal mechanical loads during backfilling, and long-term operation.

• Superior Moisture Barrier: Forms a watertight seal to prevent moisture and water ingress, ensuring permanent external corrosion protection.

• High-Temperature Performance: Reliable adhesion and sealing properties are maintained throughout the specified operating temperature range up to 85°C.

• Broad Compatibility: Delivers strong adhesion to both prepared steel surfaces (Sa 2½) and existing pipeline coatings (PE, FBE, DFBE, Coal Tar).

Product Specifications

Installation & Application

To ensure a permanent and continuous corrosion barrier, the installation process must be followed strictly. Our system is designed for ease of application under normal pipeline maintenance conditions.

1. Surface Preparation: The exposed steel surface must be cleaned to a minimum cleanliness grade of Sa 2½ according to ISO 8501-1.

2. Preheating: Apply the minimum preheat temperature of 70°C (158°F) to the steel surface.

3. Application: Wrap the sleeve around the joint, ensuring the manufacturer's recommended minimum longitudinal, circumferential, and end-overlap onto the existing original coating is achieved.

4. Heating: Apply heat uniformly using the recommended heating equipment until the sleeve shrinks and the adhesive flows, creating a fully sealed system.

All installation materials, including primers, closure patches, and heating accessories, are included in the supply scope to ensure a complete and professional application.

Comprehensive Documentation & Traceability

We provide a fully documented supply package to guarantee quality assurance and traceability. The technical offer and delivery include:

• Manufacturer's Technical Data Sheet & Product Catalogue

• Material Safety Data Sheet (MSDS/SDS)

• Detailed Application and Installation Procedure

• Certificates of Compliance (EN 12068 & ISO 21809-3)

• Product Qualification and Performance Test Certificates

Supply Scope & Quantity Calculation

We understand that accurate material planning is critical for project success. Our team will calculate the required quantity based on a complete coverage of the specified spools (approximate length of 1.0 meter per spool), taking into consideration:

• Full coverage of each 6" and 10" spool.

• Required longitudinal and circumferential overlaps.

• Sufficient overlap with the existing original pipeline coating at both ends.

• Manufacturer's minimum recommended overlap requirements.

• Reasonable allowances for cutting, installation, and normal field wastage.