6F, 501D, OP16, and Frame 5 Gas Turbine Upgrades

6F, 501D, OP16 and Frame 5

PSM and Thomassen Energy, sister companies within Hanwha Group, deliver aftermarket gas turbine solutions for frame models beyond the most common fleets. Whether your unit is a GE 6F,Siemens/Westinghouse 501D, OP16, or GE Frame 5 (5001), our combined capabilities cover combustion system retrofits, hot gas path component upgrades, rotor services, field support, and long-term service agreements. PSM provides combustion technologies including LEC III™ and FlameSheet™. Thomassen Energy provides hot gas path components, rotor services, field services, and complete outage support

Why Upgrade Legacy Gas Turbine Frames?

Upgrading older frames with modern technology delivers clear, long-term value:

• Improved Performance – Boost power output, reduce emissions, and enhance fuel efficiency.
• Increased Reliability – Minimize unplanned downtime by replacing aging components with proven, high-reliability upgrades.
• Extended Operational Life – Modernization delays capital investment and maximizes the value of existing assets.
• Enhanced Safety – Integrate newer safety standards and reduce risk for operators and facilities.
• Cost Efficiency – Lower lifecycle costs by extending maintenance intervals and improving part durability.

Supported Frame Types

We offer tailored support and component upgrades for:

• 6F Frame: 6F-class gas turbine. PSM provides LEC III™ combustion retrofits. Contact PSM for availability.
• Siemens/Westinghouse 501D Frame: 501D heavy-duty gas turbine. Contact PSM for combustion system options and Thomassen Energy for component support.
• OP16: OP16 gas turbine. Contact PSM for available upgrade solutions.
• GE Frame 5 (5001): Frame 5-1/5001 heavy-duty gas turbine. Thomassen Energy provides comprehensive Frame 5 support including HGP components, FlameSheet™ combustion, rotor services, thermal block replacement, field services, and globally sourced turbines for re-manufacturing.
  
  View Thomassen Energy's Frame 5 capabilities

Proven Upgrade Technologies

Our engineering-driven upgrades combine innovation with field-proven results. Key solutions include:

FlameSheet™: Fuel-Flexible Combustion System

FlameSheet™ is a combustion system designed for fuel flexibility, emissions compliance, and extended inspection intervals up to 32,000 factored hours. FlameSheet™ supports natural gas, hydrogen blends, and alternative fuels within a 30% Modified Wobbe Index (MWI) operational range.  NOTE: FlameSheet™ availability varies by frame type. Contact PSM or Thomassen Energy to confirm applicability for your specific installation.

LEC III™: Low-Emission Combustion System

A low-emissions combustion system delivering 3–5 ppm NOx and single-digit CO. A reliable option for operators looking to meet tight emissions regulations. Learn more about LEC III™

LEC NextGen

An advanced version of LEC III™, offering enhanced durability and consistent <9ppm NOx even under variable load conditions. Compatible with 6B, 7E/EA, 9E, and legacy 7B units.

HGP Parts: Hot Gas Path Components (Thomassen Energy)  

Thomassen Energy manufactures and supplies hot gas path components for these frame types,including inner barrel hardware, compressor blades, and turbine section components. All HGP parts are designed for OEM-level interchangeability with improved materials, sealing, and cooling. Contact Thomassen Energy for HGP component options and availability. Visit: Thomassen Energy

ThomELT (Thomassen Extended Lifetime Technology)

Extend the lifespan of your combustion system with Thomassen Energy’s coating and wear-resistant material upgrades. ThomELT reduces component wear and maintenance costs without modifying the original system configuration.

ThomELT can be installed without any further modifications to the gas turbine and can be done during a combustion inspection. For more information visit: Thomassen Energy