7EA Gas Turbine Aftermarket Parts, Upgrades, and Combustion Retrofits

We engineer and manufactures aftermarket hot gas path components, combustion system retrofits, and compressor hardware for the GE 7B, 7E, and 7EA gas turbine fleet. All components are designed and manufactured at our Jupiter, Florida facility using proprietary alloys, coatings, and cooling configurations that meet or exceed OEM specifications. We have supplied 7B/7E/7EA parts and upgrades since 1999. Our component designs are compatible with the latest 2055F firing temperature engines (GE Model 7121) and backward-compatible to legacy 7B units. Over 100 global installations of LEC III™ low-emission combustion systems validate our 7EA engineering across diverse fleet configurations.

7EA Upgrade Capabilities and Compatibility

Our 7EA component portfolio covers the full hot gas path, combustion section, and compressor. Since 1999, we have supplied hot gas path buckets and shrouds for the 7B/7E/7EA platform. In 2014, we expanded to full-range gas turbine nozzles, compressor hardware, and advanced component upgrades. All PSM 7EA components are backed by advanced computational modeling, metallurgical testing, and system-level performance validation.

Key compatibility details: 
·  Compatible with GE 2055F firing temperature engines (Model 7121) and backward-compatible to 7B units
·  Standard hot gas path inspection intervals: 24,000 fired factored hours (FFH) or 1,200 factored starts (FS)
·  Extended intervals available up to 32,000 FFH with PSM engineering consultation
·  All components designed as form, fit, and function equivalents to OEM parts, with proprietary improvements to alloys, coatings, and cooling.

What 7EA Operators Gain with PSM

• Extended Inspection Intervals: Hot gas path intervals extended from 24,000 to 32,000 fired factored hours,reducing outage frequency and lowering lifecycle maintenance costs..
• Sub-5ppm NOx Emissions: LEC III™ combustion retrofit delivers sub-5 ppm NOx on natural gas, field-proven across 100+ global installations on 7B, 7E,7EA, 6B, and 9E frames.
• OEM-Independent Service Flexibility: All PSM components are form, fit, and function compatible with OEM equipment. No OEM lock-in required. Full support available through PSM field service or your existing maintenance provider.

Component Design Improvements

1st Stage Nozzle

• Direct OEM equivalent in form, fit, and function
• Optional NiCoCrAlY overlay coating for oxidation resistance

1st Stage Buckets

• 12 radial stem drill holes for improved airfoil cooling

2nd Stage Nozzle

• OEM-equivalent design with PSM manufacturing quality controls

2nd Stage Buckets

• Scalloped tip shroud design for improved creep resistance at operating temperature
• Increased tip shroud contact surface to mitigate shingling (shroud overlap distortion)
• Compatible with both shrouded and non-shrouded blockconfigurations

3rd Stage Nozzle

• OEM-equivalent nozzle design

3rd Stage Buckets

• Enhanced bucket tip shroud geometry to reduce wear patterns and extend part life

LEC III™ and LEC NextGen Low-Emission Combustion for the 7EA

PSM's LEC III™ and LEC NextGen combustion systems are field-proven low-emission retrofits for the GE 7B, 7E, 7EA, 6B, and 9E platforms. These systems replace the existing combustion hardware with PSM's proprietary combustor design to achieve regulatory-compliant NOx and CO emissions without sacrificing operational flexibility.

LEC III™:
·  Sub-5ppm NOx on natural gas at baseload
·  100+global installations across B/E-class fleet
·  Compatiblewith legacy GE combustion systems including 6581B, 7121EA, and 9171E models
·  Extendedturndown range while maintaining emissions compliance

LEC NextGen:
·  Sub-9ppm NOx on natural gas
·  Designed as a lower-cost entry point for operators who need emissions reduction without the full LEC III™  package
·  Same form factor and installation footprint as LEC III™

Both systems are designed for installation during a standard combustion inspection outage. PSM provides complete project management including combustion dynamics monitoring, emissions tuning, and commissioning support.