The LM2500+ DLE in a 1x1 combined cycle configuration—one gas turbine, one heat recovery steam generator (HRSG), and one steam turbine—delivers significantly higher efficiency, exceeding 50% in combined cycle mode.

Designed for high thermal efficiency, fast start capability, and reduced emissions, the LM2500 family is widely used across onshore and offshore environments, including industrial plants, pipeline stations, CHP systems, and utility-scale power production.

The DLE combustion system enables the LM2500+ to maintain low NOx and CO emissions without the need for water or steam injection—simplifying operations and reducing water-related maintenance.

Key features include:

• Triple annular combustor design for even temperature distribution and lower emissions across the power range
• Electrically actuated DLE fuel valves replacing traditional electro-hydraulic SAC valves for better control
• 75 pre-mixers in 30 external modules, creating a consistent lean fuel/air mixture
• NOx emissions ≤15–25 ppm and CO emissions ≤25 ppm (on natural gas, full load)

With fast ramp-up—achieving base load from cold start in under five minutes—the LM2500 is an ideal choice for fast-start and cycling applications. This performance makes it well suited to dynamic grid environments and industrial use cases requiring quick responsiveness.

The LM2500XPRESS+G5 DLE UPT is a modular aeroderivative gas turbine system built for fast, flexible, and efficient power generation in both onshore and offshore environments. It is particularly well-suited for applications across LNG facilities, gas pipelines, gas processing plants, and general power generation, including electricity production at both 50 and 60 Hz, without the need for a speed reducer.

The "+G5" designation refers to its fifth-generation power turbine, offering the highest output and efficiency in the 20–40 MW class. It supports both high-speed and low-speed power turbine configurations, allowing integration into a variety of grid or mechanical drive systems.

At its core, the G5 includes a high-pressure compressor derived from the LM2500+G4, now redesigned for longer service life. In a simple cycle, it achieves up to 41% efficiency, which is notable for a turbine of this size class. The system can start from cold and reach load in about five minutes, making it ideal for rapid-response applications.

The unit is built for speed and simplicity. It’s shipped in preassembled modules, with a compact footprint that helps reduce installation time.

The Dry Low Emissions (DLE) system supports environmental compliance without requiring water or steam injection, simplifying operations and reducing resource demands.

Altogether, the LM2500XPRESS+G5 DLE UPT provides a practical solution for projects that need reliable, fast, and efficient power without a complex setup.

The LM2500+G4 DLE U PT is a versatile gas turbine designed for a wide range of applications, including onshore and offshore power generation, gas pipeline compression, and LNG compression. It features Dry Low Emissions (DLE) technology, which reduces nitrogen oxide (NOx) emissions to as low as 25 parts per million by volume (ppmv) at 15% oxygen, meeting stringent environmental standards.

In the oil and gas industry, production rates are closely linked to available horsepower. The LM2500+G4 DLE U PT offers higher power output, high reliability, and a lower initial cost per kilowatt, making it a cost-effective solution for energy-intensive operations.

This turbine has proven its capability to operate reliably in extreme ambient conditions, with running data demonstrating performance at temperatures as low as -50°F and start-up capability down to -40°F. This wide operational temperature range ensures dependable service in harsh environments.

Fuel flexibility is a key strength of the LM2500+G4 DLE U PT. It can seamlessly switch between various fuels—lean treated natural gas, rich offshore gas, propane, or diesel—without shutting down or losing efficiency. This flexibility supports energy security, allowing continuous operation even if the natural gas supply is interrupted. Additionally, the turbine can be adapted to burn alternative fuels like bioethanol and naphtha, further enhancing fuel options.

A notable advantage of aeroderivative gas turbines like the LM2500+G4 DLE U PT is their ability to operate on hydrogen blends, which produce no carbon emissions when combusted. Both new turbines and existing units can be converted for high hydrogen fuel use, supporting decarbonization goals.

Moreover, the LM2500+G4 DLE U PT is truly dual-fuel capable, able to switch from 100% natural gas to 100% propane without the need for pilot fuels. This contrasts with dual-fuel reciprocating engines, which typically require about 5% diesel during gas operation, increasing costs and emissions. The LM2500+G4 DLE U PT’s fuel flexibility, emission controls, and robust design make it a reliable and efficient choice for demanding mechanical drive and power generation needs in the oil and gas sector.

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.

The T5.4 thermocouple is a temperature-sensing probe used in LM2500 gas turbines to measure exhaust gas temperature (EGT). The label T5.4 refers to its specific position in the turbine\'s exhaust thermocouple array—zone T5 (turbine exhaust), sensor 4. These sensors are part of a system that monitors thermal conditions at multiple points in the exhaust stream.

This thermocouple operates in high-temperature environments, withstanding continuous exposure up to approximately 1100°C. It is built to maintain accuracy and reliability under the thermal stress and vibration typical in gas turbine applications.

T5.4 thermocouples are often used with flexible

harness systems. This allows operators to replace individual probes without removing the entire harness, improving maintenance efficiency and reducing downtime.

By providing real-time exhaust temperature data, the T5.4 thermocouple supports engine control, performance optimization, and safety monitoring in industrial gas turbine operations.