+1 (561) 354-1100 sal[email protected]
Innovative Clean Energy Solutions for Future Generations

Frame 501F

Complete Compressor, Combustor, and Turbine Flow Path Offering

Since 1999, PSM has maintained a complete 501F product line that offers robust and proven design improvements and solutions. Our product line has expanded from our flagship combustion offerings to include reliability enhanced, in-kind replacement of turbine, compressor, and rotor hardware, as well as upgrade packages that deliver performance enhancements and extended lifetimes.

As the sole source for aftermarket 501F GT performance upgrades, we remain focused on producing responsive, targeted, high quality design solutions in anticipation of 501F fleet needs.  Through continuous improvement of our current offerings and expansion into new products, we combine our technical expertise, speed to market, flexible solutions, innovative tools, and multiple OEM cross-platform experience to prove ourselves the industry leading 501F alternative products and services supplier.  We bring these advantages to customers who want gains in efficiency and performance paired with reduced life cycle costs through better durability and reliability.

Designed to Reduce Life Cycle Cost

Maximizing part durability and reliability provides better availability and profitability in the marketplace.

Our complete line of SW & MHI 501F parts have been redesigned where necessary to address
the life-limiting elements of existing designs.  Our hot gas path components utilize advanced
materials, coatings, cooling schemes, and design features to maximize durability and reliability.
We upgrade components following our proven design approach.

  • Identify the current component issues/failures
  • Use state-of-the-art analysis tools, metallurgical evaluations, and engine test data where
    possible to determine the root cause of the issues/failures
  • Use the same analytical tools to design and fabricate new hardware with design features
    to maximize durability and reliability
  • Return that value to owners and operators through reliability and operability enhancements,
    outage elimination to reduce operating costs, and performance upgrades to improve the bottom line

By co-locating R&D engineering with our repair workshop, our design engineers collect continuous
feedback on the performance of PSM and competitor designs and proactively address emerging fleet issues.

Our Hot Gas Path benefits include:

  • Interchangeability: with OEM parts at the component or system level
  • Interval Extension: Minimum 25K EBH or 900 ES repair interval for all parts
  • Life Cycle Costs: 4 interval component life for all combustion parts, with lower repair costs at each part turn
  • Operational Flexibility: 5-10% turndown improvement
  • Reduced Operational Risk: Design and flow control increases dynamics window for safe operation
    (increased flashback and NOx margin)

Exhaust Cylinder and Manifold

Maximizing part durability and reliability provides better availability and profitability in the marketplace.

  • Solution to Fleet-wide issues for rotor alignment and diffuser cracking
  • Thermally free diffuser design
  • Redesigned split line flanges
  • Baffle Plates eliminated
  • Lower stress strut shield design
  • Higher strength strut material
  • Mechanically robust liners
  • Material changed for increased weldability
  • New static seal design
  • Recreates front flange of Exhaust Manifold to remove crack-prone interface
  • Drop-in replacement, 2-piece construction on cylinder


Automated GT Combustion Tuning
PSM’s AutoTune system enables automated combustion tuning to maintain emissions and combustion dynamics within specified limits under varying ambient conditions (temperature and humidity), engine deterioration or while using a range of natural gas or liquefied natural gas.

Optimize Unit Operation
The AutoTune system incorporates features which result in optimal operation from a power and heat rate standpoint. The result is improved emissions control, hardware life, reliability and operability.

Optional Software Components
Fuel gas temperature optimization, Power+ for maximum power, and optimization for LNG are all options for allowing optimal power and increasing hardware life.

Performance Upgrades with GTOP6

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

Existing gas turbine power generation operators face multiple challenges to their future viability, including the increasing presence of renewables and distributed generation.  At the same time, coal retirements are being accelerated while new generation is costly and slow to come online.  This highlights the need for generating companies to maximize the capacity, efficiency, and flexibility of their existing assets.  For 501F customers, PSM has developed the Gas Turbine Optimization Packages – which offer customized options for output, heat rate improvement, interval extension, and operational flexibility.

What is included in the GTOP package from PSM
• GT output improvement up to 9% of baseload, efficiency improvement up to 1.6% for 2×1 combined cycle, and interval extension to a combined 32K CI/HGP
• Incremental upgrade packages allowing tailored solutions to meet your economic goals with compatibiity to future improvements
• Plant Assessment to evaluate the performance impact of the GTOP upgrade on your entire plant
• No exhaust scope required as part of upgrade package.  However, PSM’s 501F Exhaust Cylinder and Manifold solution available
• Turn Down capability of PSM combustor demonstrated to be superior to OEM parts.  Users can expect a 5-10% improvement within emissions compliance
• Compatibility with OEM hardware on a set-wise basis for non-GTOP components. This enables customers to complete a phased implementation of GTOP upgrade packages and realize the full value of their part purchases

Learn more in our GTOP video shown here.

GTOP6 Upgrade
Providing Performance Improvement and Interval Extension to 501F Engines

  • Upgraded Stage 1 & 2 components
  • Compatible with all existing custome inventory
  • includes rredesigned R4B for improved aerodynamics
  • Compatible with existing FD2 Exhaust Cylinder and blade ring

501F 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.

  • Anti-icing system protects compressor airfoils against ice formation
  • Protects inlet filters against ice and snow accumulation
  • Alarm system warns of ice formation conditions in compressor
  • Warns of ice and snow accumulation on inlet air filters

PSM’s system puts air in front of the filters, diverting high pressure air from the turbine and injecting it upstream for full inlet system ice protection.

Looking for Brochure Downloads?

Find additional information regarding PSM's Products and Services on our Media page, under the Brochure Downloads section.