The LM2500+G4 SAC 50Hz Simple Cycle is a fourth-generation aeroderivative gas turbine of the LM2500. Designed for industrial power applications, including those in the oil and gas sector, it delivers more output and greater thermal efficiency while retaining the ease of maintenance and high reliability the LM2500 series is known for.

In a simple cycle configuration, the gas turbine generates power directly by expanding hot gases through the turbine stages, without recovering heat for additional power generation. This design is favored for its simplicity, lower capital cost, faster start-up, and suitability for mobile or remote applications.

The LM2500+G4 improves upon its predecessor by increasing airflow and turbine cooling capacity, allowing for higher operating temperatures. These changes result in up to 40% thermal efficiency in simple cycle mode—an impressive figure for this class of turbine. This translates to improved fuel usage and reduced operational costs over time.

The engine features a Single Annular Combustor (SAC), which supports stable combustion with low emissions of nitrogen oxides (NOx) and carbon monoxide (CO). The combustor is also designed for durability and long life, with easily replaceable fuel nozzles and a thermal barrier coating for resistance to high temperatures and corrosion.

Its two-spool design means the engine has no cold start limitations, making it well-suited for harsh or variable environments. The power turbine and gas generator can be separated, allowing for easier in-module repairs and less downtime.

Overall, the LM2500+G4 SAC 50Hz Simple Cycle offers a balance of power, efficiency, and maintainability, making it an attractive solution for power generation and mechanical drive needs in industrial, onshore, and offshore oil and gas operations.

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 3” Gas Fuel Isolation Valve is designed for use in industrial gas turbines within the oil and gas sector, serving as a vital safety and control device. It regulates the flow of natural gas or compressor discharge air to the turbine, enabling quick isolation of fuel supply during abnormal or emergency conditions to protect the turbine from damage.

This valve features a three-inch outlet flange and is solenoid-pilot actuated, operating on 24 or 95-140 VDC power. It is engineered to withstand high-pressure environments, with natural gas operation rated up to 900 psig and compressor air up to 640 psig. It also endures elevated temperatures, tolerating heat soak conditions up to 400°F for natural gas and up to 800°F for compressor air applications.

Constructed from stainless steel materials compliant with NACE standards, the valve resists corrosion in harsh operating conditions typical in oil and gas facilities. It meets strict safety certifications, including CE-ATEX Group IIA, Category 3, Zone 2, T3, making it suitable for use in potentially explosive atmospheres.

The valve operates with a rapid opening time of approximately 110 milliseconds and closes within 1 second, enabling prompt response to operational changes or emergency shutdown signals. Typically installed in pairs to provide dual-redundancy, these valves enhance system safety by ensuring backup isolation capability.

Overall, the 3” Gas Fuel Isolation Valve is essential for maintaining safe, efficient, and reliable turbine operation by controlling and isolating fuel or air flow, thereby preventing damage and reducing the risk of costly downtime in oil and gas power generation applications.

LM2500 Fixture, Hinge – Upper Compressor Case is a specialized tool set designed to safely raise and hinge open the upper compressor case of the LM2500 gas turbine engine. This fixture is essential during major maintenance, inspection, or overhaul activities where access to the engine’s internal compressor components is required.

The fixture allows maintenance teams to lift and securely hold the heavy upper compressor case in a hinged, open position. This provides stable and safe access to the compressor rotor and other internal parts, ensuring technicians can carry out detailed inspections or repairs without risking damage to sensitive components.

Made from strong, durable materials, the fixture set is built to support the heavy upper compressor case while keeping everything properly aligned. Its reliable locking and hinge system holds the case securely in place, helping protect the gas turbine.

Compatible with both OEM and MRO procedures, this fixture supports efficient, repeatable maintenance practices and helps reduce overall engine downtime. Whether used in the field or in a dedicated maintenance facility, the LM2500 Hinge Fixture is a critical tool for safe and effective servicing of the LM2500 engine’s compressor section.

The LM2500XPRESS gas turbine is a compact and modular power system designed for fast installation and quick delivery of power when speed matters. It comes prepackaged in 10 simplified modules, which makes installation easier and faster, with only 27 electrical interconnects to manage.

This turbine is based on the proven LM2500 aeroderivative gas turbine, known for its reliability and versatility. It can be used in a wide range of power generation setups, including baseload, peaking, simple cycle, combined cycle, and cogeneration (combined heat and power) applications. The system offers dry low emissions (DLE) and can operate on gas or dual fuel.

One important feature of the LM2500XPRESS is its ability to handle daily starts and stops without increasing maintenance frequency or costs. Its free-spinning power turbine design allows it to act as a synchronous condenser without needing a clutch between the turbine and generator, which helps reduce maintenance needs and downtime.

The turbine can ramp from a cold start to full base load in about five minutes, making it ideal for situations where fast power availability is critical. Its plug-and-play design allows industrial users or grid operators to connect and begin generating electricity quickly and efficiently.

In summary, the LM2500XPRESS combines a reliable aeroderivative gas turbine with a smart, modular package designed for rapid deployment and flexible power generation.