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 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.

The 3-inch sleeve-style hot air purge valve is designed for aero-derivative industrial gas turbines to control the flow of hot compressor bleed air used in critical purge operations. This valve is normally closed and solenoid-pilot actuated, available in two- or three-inch sizes with elbow sleeve design. It operates on 24 or 125 VDC power and is constructed with ANSI B16.5 Class 600 raised face flanges.

Key specifications include a physical size of approximately 7.5 inches wide and 25 inches high, weighing between 84 to 91 pounds. It can handle line pressures up to 500 psig and actuation pressures between 80 and 125 psig. The valve is rated to operate in fluid temperatures ranging from 32°F to 1100°F (bleed air), and can withstand ambient temperatures between –20°F and 240°F with heat soak up to 400°F for 1 to 2 hours when de-energized.

Performance characteristics include a flow capacity of about 1.2 pounds per second of compressor bleed air with a maximum pressure drop of 0.70 psi across normal operating conditions. Internal leakage is minimal, rated at 0.00025 pounds per minute. The valve features a rapid full stroke response time of 1 second for both opening and closing cycles. It includes a position indicating switch and supports continuous duty operation.

Functionally, this valve plays a crucial role in purging residual fuels, such as diesel, from the combustor fuel lines when switching fuels, preventing deposits that can impair turbine performance or cause damage. The valve is often installed in pairs for dual redundancy to enhance safety and operational reliability. With millions of field operating hours, this design reflects high durability and precise control essential for efficient and safe turbine operation.

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 E3/E17 off-engine electrical cables are designed for resilience in the toughest of applications. To protect the critical wiring components from exposure to harsh environmental conditions, these cables incorporate rugged materials and advanced protective features.

Used with LM2500 gas turbines, these cables are located outside the engine and serve as essential links between the turbine’s internal control systems and external instrumentation, control panels, and auxiliary equipment.

Built to withstand vibration, moisture, extreme temperatures, and chemical exposure, E3/E17 cable harnesses include stainless steel connectors, rubber or fluoropolymer over-molding, and electromagnetic interference (EMI) shielding to maintain signal integrity and durability.

The E3/E17 classifications indicate different cable configurations and connector types tailored for specific LM turbine system requirements. Both ensure reliable transmission of electrical power and control signals critical to turbine operation, safety, and performance monitoring.

Manufactured with custom materials and protective coatings, these cables comply with hazardous location standards such as ATEX and UL/CSA certifications. Their robust design provides long service life with minimal maintenance, supporting high fleet availability and operational reliability.

In oil and gas applications, where equipment is exposed to extreme environments and strict safety regulations, the E3/E17 off-engine cables offer dependable, durable connectivity. Their rugged construction and certification for hazardous locations make them ideal for maintaining safe, continuous turbine operation in demanding field conditions.

The 3” Globe-Style Gas Metering Valve is designed to deliver accurate and consistent fuel control in industrial gas turbines, including both Dry Low Emissions (DLE) and Single Annular Combustor (SAC) engine types. This valve ensures that the correct amount of gas fuel is metered into the engine based on real-time operating conditions—essential for achieving stable combustion, optimal turbine performance, and reduced emissions.

With an accuracy of ±3% of flow point and a full-stroke response time of 175 milliseconds, it supports precise adjustments to the fuel-to-air ratio, even under fluctuating load conditions. This level of performance is critical for maintaining turbine efficiency, lowering NOx and CO emissions, and supporting regulatory compliance.

The globe-style design allows for smooth fuel flow control, making it ideal for high-capacity, high-pressure turbine applications, such as those found in the oil and gas industry. Built to withstand extreme temperatures and pressures, the valve is available with certifications such as ATEX Zone 1 and 2, PED, UL, and NEC Class 1, ensuring safe operation in hazardous environments.

This metering valve supports modern turbine control systems and is part of a generation of components that prioritize long-term reliability, reduced maintenance needs, and consistent field performance.