Gas & Steam Turbine Insulation Solutions
ERATHERM designs advanced insulation systems for the high temperatures, vibration and complex geometries of gas and steam turbines — improving thermal performance, reducing heat losses and extending equipment life. From in-house removable insulation jackets resistant to 800 °C to spray + jacket hybrid systems, every solution is engineered to ISO 12241, ASTM and EN 13501 and is fully compatible with international turbine manufacturers. We deliver long-term turnkey, maintenance and revision projects alongside GE, Siemens Energy, Mitsubishi Power, Ansaldo Energia, Kawasaki Heavy Industries, Rolls-Royce, MAN Energy and Doosan Škoda Power.
ISO 12241 · ASTM · EN 13501
High-Temperature Engineering for Gas Turbines
Surface temperatures around gas turbine casings, exhaust lines, manifolds and combustion chambers run from 300 °C to 650 °C — and 750 °C and above at the hottest zones. Insulation here is not a wrapping job; it directly drives turbine efficiency, fuel consumption, maintenance cost, equipment life and personnel safety.
- Prevents unnecessary heat loss and excess fuel consumption
- Avoids casing metal fatigue and thermal-shock cracking
- Protects component life and reduces forced-shutdown losses
- Model-specific engineering for each turbine geometry
A Model-Specific Method for Every Turbine
Each turbine model has its own geometry, temperature zones, access needs and thermal behaviour — so ERATHERM engineers every project through a defined sequence of stages.
Thermal Analysis & Simulation
Heat-distribution, surface-temperature and thermal-stress analysis for each model, to ASHRAE, ISO 12241 and ASTM C680.
Detail engineering
Material Optimization
Zone-specific selection — ceramic fiber blankets, high-temperature mats, aerogel composites, silica fabrics and metal-mesh-supported insulation.
Insulation materials
Modular Jacket Design
Jacket-type, removable insulation systems designed for fast maintenance and repair access without compromising thermal performance.
Exhaust System Layers
Composite insulation systems resistant to high vibration and temperature for exhaust diffusers and exhaust lines.
Fire-Safety-Focused Design
Insulation systems engineered with fire safety in mind, compliant with API and EN 13501 requirements.
Maintenance & Revision
Long-term maintenance, revision and planned-shutdown turbine insulation with removable jackets that cut downtime.
Turnaround services
Next-Generation Removable Jackets
Specially designed insulation jackets are among the highest-efficiency technologies in modern turbines — and ERATHERM designs and manufactures them in-house, 3D-modelled to site measurements:
- Resistance up to 800 °C, modular and removable for maintenance
- Prevents heat bridges with high performance at low thickness
- Oil-, chemical- and moisture-protected construction
- Ideal for valves, flanges, injection lines, casing covers and instrumentation
Complex Geometry, 400–550 °C Service
Steam turbines sit at the heart of high-pressure, high-temperature processes in thermal, combined cycle, refinery and petrochemical plants, with surface temperatures of 400–550 °C. Incorrect insulation can raise energy losses by 15–35%, cause casing expansion and fatigue and shorten turbine life — so thermal and mechanical requirements are evaluated together.
- Process temperature maps from thermal-camera and surface analysis
- Special detailing for corners, flanges, actuator and bearing areas
- Steam inlet and outlet line insulation
- Balanced thermal + mechanical design for complex casings
A Hybrid Method Few Apply in Türkiye
For steam turbines, ERATHERM combines mineral-wool spray insulation as the inner layer with insulation jackets as the outer layer — a hybrid offered by very few companies in Türkiye, and one for which we hold among the most references.
- Eliminates heat bridges with a perfect casing fit
- High vibration resistance for rotating equipment
- Removable jackets cut maintenance time by up to 60%
- Lowers thermal losses by 25–40% and reduces corrosion risk
OEM-Grade Materials, International Standards
All ERATHERM turbine materials comply with EN 13501, ISO 12241 and ASTM C411, selected for each temperature zone.
High-temperature ceramic fiber blankets for the hottest turbine zones.
High performance at low thickness for tight, complex geometry.
Silica-based industrial fabrics and metal-mesh-supported insulation.
Inner-layer spray insulation for a perfect casing fit.
Thermal calculation and heat-loss analysis basis.
Hot-surface performance of thermal insulation materials.
Reaction-to-fire classification for insulation systems.
Fire-safety and thermal-design references for turbines.
Long-Term Partner to the World's Turbine Makers
For many years ERATHERM has worked at the sites of leading turbine manufacturers — including GE, Siemens Energy, Mitsubishi Power, Ansaldo Energia, Kawasaki Heavy Industries, Rolls-Royce, MAN Energy, Doosan Škoda Power and Alstom Power — across new builds, maintenance and revisions.
These long-term collaborations confirm that ERATHERM is not just an application team but an internationally recognized turbine insulation engineering firm.
Turbine Insulation at OEM Engineering Level
Solutions at the same technical level as global turbine manufacturers.
3D-modelled removable jackets manufactured in-house to 800 °C.
One of the most-referenced firms in Türkiye for the hybrid method.
Removable systems cutting maintenance time and downtime.
Engineering tuned to each turbine model's geometry and zones.
Two decades of gas and steam turbine insulation references.
Sectors, Systems & Specialist Programs
Turbine insulation connects to ERATHERM's wider portfolio of thermal insulation systems, industrial sectors and specialist defense, aerospace and nuclear programs.
Systems & Sectors
Engineering & Services
Turbine Insulation — Common Questions
Why is turbine insulation a specialist engineering field?
Gas and steam turbines combine high temperatures, vibration and complex geometry, so insulation is a multi-layered field of engineering, material science and process analysis. Each turbine model has different geometry, temperature zones and maintenance access needs, requiring model-specific thermal analysis and detailing.
What surface temperatures do turbines reach?
Gas turbine surfaces typically run 300–650 °C, reaching 750 °C and above at combustion-chamber and exhaust areas; steam turbine surfaces range 400–550 °C. ERATHERM's removable jackets are designed to resist up to 800 °C.
What are ERATHERM's removable turbine insulation jackets?
In-house modular, removable jackets resistant to 800 °C, 3D-modelled to site measurements. They prevent heat bridges, are oil/chemical/moisture protected, achieve high performance at low thickness and cut maintenance time, ideal for valves, flanges, injection lines, casing covers and instrumentation.
What is the spray + jacket hybrid method?
For steam turbines ERATHERM applies mineral-wool spray insulation as the inner layer and insulation jackets as the outer layer. This eliminates heat bridges, gives a perfect casing fit, offers high vibration resistance and facilitates maintenance — an application for which ERATHERM holds many references in Türkiye.
Which standards govern turbine insulation?
Thermal analysis follows ASHRAE, ISO 12241 and ASTM C680; materials comply with EN 13501, ISO 12241 and ASTM C411; and fire-safety design aligns with API and EN 13501.
Which turbine manufacturers does ERATHERM work with?
ERATHERM delivers long-term turbine insulation alongside GE, Siemens Energy, Mitsubishi Power, Ansaldo Energia, Kawasaki Heavy Industries, Rolls-Royce, MAN Energy, Doosan Škoda Power and Alstom Power, across new builds, maintenance and revisions.
Plan Your Turbine Insulation Project with ERATHERM
Thermal analysis, in-house removable jackets and spray + jacket hybrids — for new builds, maintenance and revisions on gas and steam turbines.