The Single Annular Combustor (SAC) version of the LM2500+G4 is designed for oil and gas applications that prioritize consistent performance, fuel flexibility, and emissions control—such as LNG facilities, gas processing plants, and pipeline compression, both onshore and offshore.

What makes the SAC version different is its simpler combustor design compared to dual annular or premix types. The SAC uses a through-flow, venturi swirler to ensure an even temperature profile at the turbine inlet, helping extend hot section life. It features individually replaceable fuel nozzles, a durable machined-ring liner, and a thermal barrier coating for better resistance to high temperatures and corrosion. This design supports both dry operation (with higher emissions) and water or steam injection to reduce NOx when needed—making it adaptable to site-specific emission regulations.

The LM2500+G4 SAC builds on the proven LM2500+ design, with approximately 10% more power. This gain comes from increased airflow, improved internal cooling, and material upgrades—while keeping the same number of compressor and turbine stages. The 17-stage high-pressure axial compressor and the basic engine layout remain unchanged, making it easy to maintain and service.

The engine can run on a wide range of liquid and gas fuels, allowing flexibility in remote or supply-constrained locations. It achieves up to 40% thermal efficiency in simple cycle mode. Water-injected operation enables NOx emissions as low as 25 ppm (gas) and 42 ppm (liquid).

In short, the LM2500+G4 SAC is well-suited for high-power mechanical drive and power generation in harsh or remote oil and gas environments, offering a balance of power output, fuel versatility, and emissions control.

The LM2500+ gas turbine delivers increased power and improved efficiency by building on the proven LM2500 platform. Designed to meet the demanding needs of industrial and offshore operations, it offers a compact, reliable solution for power generation and mechanical drive applications.

The LM2500+ enhances the original LM2500 design by adding a 17-stage high-pressure axial compressor. This additional compressor stage increases airflow and raises the engine’s pressure ratio, resulting in roughly 20% more power output. The turbine uses a ring combustion chamber with advanced dry low emissions (DLE) technology, producing very low levels of NOx and CO emissions to meet strict environmental standards.

A key feature of the LM2500+ is its low-speed turbine section, which is specifically designed for offshore platforms and other space-restricted environments. This turbine’s compact size and modular design allow for easy maintenance, with split compressor casing and in-place blade replacement that reduce downtime and operational complexity. The turbine is factory-tested and pre-wired for straightforward installation, supporting both 50 Hz and 60 Hz power generation without the need for additional equipment like reducers.

Operators benefit from the LM2500+’s enhanced power and fuel efficiency, which help reduce operational costs and improve performance in applications such as combined heat and power systems, industrial power generation, underground gas storage, and gas pipelines. Its modular, space-saving design fits well in offshore installations where size and weight are critical factors.

the LM2500+ ensures continuous performance and maximizes uptime, making it a trusted solution for critical power needs across various industrial and offshore applications.