PPG SIGMALINE® 403: Gasunie Gas Pipeline Network

Gasunie

Delivering proven, long-lasting coating performance

The Customer

Gasunie’s network ranks among the largest high pressure gas pipeline grids in Europe, consisting of approximately 15,500 kilometers of pipeline in the Netherlands and northern Germany, dozens of installations and approximately 1,300 gas receiving stations.

With its cross-border gas infrastructure and its services Gasunie facilitates TTF, which has developed into a leading and strongly growing European gas trading hub. The company also offers other services in the gas infrastructure field, including gas storage and LNG.

The Challenge

Reliability and recognized, long-lasting protection were essential criteria for this critical pipeline network. As a result, the project required a pipeline protective coating system that would ensure consistently high performance and also reduce operational costs.

The Solution

PPG Protective & Marine Coatings (PPG) proposed the hardwearing PPG SIGMALINE 403 epoxy flow coating. The coating offers good protection against corrosion and remains smooth. This reduces the frictional resistance on steel pipe interiors, thereby enhancing the flow and transportation of purified natural gas.

The Customer

Gasunie (N.V. Nederlandse Gasunie)


The Location

The Netherlands


The Challenge

To provide a pipeline protective coating system that ensures reliable performance and reduces operational costs.


The Solution

PPG SIGMALINE 403 epoxy flow coating.


The Benefits

Proven, long-term corrosion protection and flow enhancement resulting in less maintenance and reduced costs.


The Result

Due to the extension of Schiphol Airport in 2000, the existing pipelines which were laid in 1978 needed to be moved. This was an excellent opportunity to inspect the state of the internal coating. PPG SIGMALINE 403 showed very good performance, without any coating defects.

The Benefits

Gasunie

This project shows the importance of choosing an established protective coatings partner. As they face increasing operational costs, companies like Gasunie rely on PPG to provide the most effective, long-term protective solution. PPG’s unrivaled products, systems and support help customers become more efficient by offering increased efficiency for new-build projects; effective solutions for touch-up and maintenance tasks; and enhanced, longer lasting protection to reduce maintenance frequency.

PPG SIGMALINE 403 offers the following benefits:

  • Good anticorrosive properties
  • Reduces the frictional resistance on steel pipe internals for the transportation of purified natural gas
  • Meets API RP 5L2 fourth edition
  • Meets the requirements of EN10301

The combination of this resilient pipeline coating system with PPG’s market-leading expertise and support means that partnering with PPG helps reduce the total cost of ownership and operation on pipeline projects of any scale.

The Result

Gasunie

The exceptional performance of PPG’s products is established throughout the world. In this particular project, the proven durability and performance of the PPG SIGMALINE 403 product was evaluated in ‘Performance of PPG SIGMALINE 403 epoxy coating - A case history. By D. Koster, Pipeline Protection Service’. The results exceeded all expectations. After 22 years’ service, the PPG SIGMALINE 403 coating showed very good performance without any coating defects.

The pipeline inspection highlighted these specific characteristics:

  • After visual inspection, the coating still had a smooth surface, no indication of damages or blisters and the original color
  • The measured thickness at different locations was still between 40 and 60μm.
  • An adhesion test according to API RP 5L2 and ISO 2409 showed 0% adhesion loss
  • After the adhesion test the coating was removed for visual inspection of the coating - steel interface:
    • no indication of loss of performance
    • no indication of contamination of any product between coating and steel was observed

PPG is a market-leading supplier of high-performance, heavy-duty coating systems. The inspection conducted by the company Pipeline Protection Services concluded that the coating was still intact after 22 years, which means that the system is able to perform for another 20 years.

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