Belzona ® Composite repair On-site Application for Buried Natural Gas Pipelines

KHIA ID: 8242

Industry: Oil & Gas (OILG)
Application: VPF-Valves, Pipes and Fittings (VPF)
Substrate: Carbon steel

Customer Location: Sichuan, China
Application Date: August, 2013

Products:
Belzona 1161 (Super UW-Metal)

Belzona 9371 (Reinforcement Sheet)

Problem: The operating pressure of these buried gas pipelines is 2Mpa; Maximum depth of external metal loss is 6.7mm; The corrosion area is 40 × 60mm. These pipelines have been immersed in a humid environment for a long time, and the surface of the pipeline cannot be dried.

Photograph Descriptions

1. Buried pipeline；

2. Damaged external surface；

3. Dry wrapping of the reinforcing sheet;

4. Application complete

Application Situation

These natural gas supply pipelines are used for the local scenic area which cannot be replaced or shut down. The client requires on-site repair by an engineering designed repairing system.

Application Method

Application carried out in accordance with Belzona System Leaflet VPF-11

Belzona Facts

As these buried gas pipelines operate in humid environments (such as paddy fields and hills area), Belzona moisture tolerant material is used for on-site application which avoids hot-work and saves time and costs for client. The client is very pleased with the result.

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