501F Frames

Complete Compressor, Combustor, and Turbine Flow Path Offering

PSM has supported 501F gas turbines since 1999, delivering proven performance upgrades that improve reliability, efficiency, and total cost of ownership. We offer a complete portfolio of aftermarket solutions—including combustor, compressor, and turbine flow path hardware—to extend component life and reduce repair costs.

Our engineering approach combines advanced analytics, proprietary design features, and deep platform experience to solve known 501F challenges. Whether you're running SW or MHI units, PSM’s upgrades help you adapt to evolving operational and emissions demands without sacrificing durability.

Design Improvements That Deliver

PSM’s upgraded 501F hot gas path components are engineered to address life-limiting design elements. Backed by our own IP and data-driven analysis tools, we help operators solve root-cause issues and improve hardware performance.

Our proven design process includes:

• Diagnosing known failure modes using metallurgy and engine test data
• Applying advanced materials, coatings, and cooling schemes
• Implementing design features that maximize durability and reliability

Benefits of our hot gas path upgrades:

• OEM-Compatible Interchangeability
• Extended Intervals: Up to 32K EBH / 900 ES for all components
• Lower Life Cycle Costs: 4-part interval coverage with lower repair expenses
• Increased Operational Flexibility: +5-10% turndown range
• Reduced Risk: Optimized flow control expands safe operating margin

Let’s Optimize Your 501F Performance
_{Whether you're seeking better emissions control, lower maintenance costs, or extended hardware life, PSM’s 501F upgrades deliver value you can measure.}

Additional Upgrade Options

AutoTune

PSM’s AutoTune system automatically adjusts combustion dynamics to maintain emissions compliance under changing ambient and fuel conditions—including operation on natural gas or LNG. It helps reduce tuning costs, improve fuel flexibility, and maintain performance across seasons.
For more information visit Intelligent Data.

GTOP6

PSM’s 501F GTOP6 Upgrade Package offerings optimize critical performance variables to improve operation and life cycle maintenance costs.

GTOP6 Upgrade

The GTOP6 upgrade enhances critical Stage 1 and Stage 2 components for FC-FD2 engines. It includes:

• Upgraded Stage 1 & 2 components
• Compatibility with customer-owned inventory
• Redesigned R4B for better aerodynamics
• Integration with existing FD2 exhaust cylinders and blade rings

Inlet Bleed Heat System (IBH)

PSM’s IBH system addresses the issue of ice or snow buildup on the inlet filters and compressor, which can lead to damage of the filter components and compressor. The IBH system can also provide increased turndown flexibility allowing emissions compliance at lower levels.
For more information visit Auxiliary Upgrades.