Steam & Gas Turbine Removable Insulation Blankets

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Aeroderivative Gas Turbine Insulation Blankets

Aeroderivative gas turbines operate under extreme thermal cycling and rapid startup conditions, particularly in peaker power plants, offshore platforms, and mission-critical data center backup power facilities. ATC manufactures specialized, high-temperature flexible insulation blankets engineered to withstand continuous operating temperatures up to 2,300°F (1,260°C) while dampening high-frequency acoustic noise.

We engineer custom blanket sets for the world’s most widely deployed aeroderivative turbine families:

Turbine Model Series	Supported Variants & Configurations	Critical Components Insulated
GE LM6000	LM6000 PC, LM6000 PF, LM6000 PF+, LM6000 Sprint®, PC Sprint, PF Sprint	Turbine casing, exhaust collector, exhaust transition duct, enclosure piping, stop & control valves.
GE LM2500	LM2500, LM2500+, LM2500+G4, LM2500XPRESS®	Exhaust cylinder, turbine shell, flange connections, fuel manifold lines, package enclosure blankets.
GE LMS100 & TM2500	LMS100, TM2500 Mobile Gas Turbines	Intercooler ducting, high-pressure turbine casing, exhaust diffuser, mobile package piping.
Siemens Aeroderivative	SGT-A35 (Industrial RB211), SGT-A05 (Industrial 501-K)	Gas generator casing, power turbine shell, exhaust ductwork, flexible expansion joints.

Heavy-Frame Gas Turbine Insulation Systems

Large utility-scale combined-cycle and simple-cycle power generation facilities rely on ATC heavy-duty thermal insulation systems to maintain precise cylinder clearances, minimize radiant heat gain inside the turbine hall, and ensure OSHA-compliant surface touch temperatures (< 140°F / 60°C).

Supported Heavy-Frame Fleets:

• GE F-Class & H-Class: GE Frame 7F / 7FA (7F.03, 7F.04, 7F.05), GE 6F / 6FA, GE 9F / 9FA, and next-generation GE 7HA / 9HA gas turbines.
• GE B/E-Class Established Fleets: Frame 6B, Frame 7E, and Frame 9E turbines.
• Siemens / Westinghouse Heavy-Duty: 501F Family (W501F, 501FC, 501FD, 501FD2), SGT6-5000F, SGT-800, SGT-700, and SGT6-9000HL.

Areas Insulated w/ Blankets	Method of Insulation	Engineering Reasons & Benefits
Top Shell & Upper Casing	Multiple Layers (High-Density Silica / E-Glass)	Thermal Protection, Heat Retention, Shell Distortion Prevention
Bottom Shell & Lower Half	Multiple Layers w/ Stainless Wire Mesh Lining	Thermal Retention, Balanced Shell Cooling, Environmental Resistance
Horizontal Split Line Joints	Custom Molded Split-Flange Blankets	Prevents Casing Warpage, Facilitates Rapid Outage Unbolting
Combustion Section & Cans	Multi-Layer Flexible Thermal Barrier	Acoustical Damping, Radiant Heat Containment, Burn Protection
Exhaust Cylinder & Diffuser	High-Temp Reusable Jackets	Thermal Containment, Exhaust Expansion Absorption

Steam Turbine Thermal Insulation Blankets

Steam turbine efficiency depends on uniform thermal expansion and strict heat retention across High Pressure (HP), Intermediate Pressure (IP), and Low Pressure (LP) cylinders. ATC designs precision-fit, multi-piece removable blanket systems for utility steam turbines (GE, Siemens SST series, Westinghouse, Toshiba, and Mitsubishi):

Areas Insulated w/ Blankets	Method of Insulation	Engineering Reasons & Benefits
HP SHELL (Top, Bottom & Joint)	Multiple Layers (High-Temp Mat)	Thermal Protection, Thermal Equilibrium, Heat Retention
RH / IP SHELL (Top, Bottom & Joint)	Multiple Layers	Heat Retention, Consistent Expansion Across Casings
LP SHELL (Top, Bottom & Joint)	Multiple Layers w/ Acoustic Septum	Acoustical Protection, Personnel Touch Temperature Reduction
CROSS-OVER PIPING	Sectional Removable Jackets	Thermal Containment, Easy Disassembly During Overhauls
Stop & Control Valves	Pre-Formed Valve Enclosures	Rapid Access for Valve Actuator Testing & Stem Packing
Reheat Valves & T&T Valves	Custom Molded Blankets	Prevents Condensation & Heat Loss, Full Personnel Protection

Combined-Cycle & HRSG Insulation Systems

In Combined Cycle Power Plants (CCPP), heat recovery steam generators (HRSGs) and interconnecting steam piping require continuous thermal management. ATC supplies custom insulation covers for:

• HRSG Casing & Penetration Seals: Flexible penetration boots and sealing covers preventing air infiltration and heat escape around superheater, reheater, and evaporator tube headers.
• Ductwork & Diverter Dampers: Exhaust transition ducts, diffuser sections, bypass stacks, and silencer covers.
• High-Temperature Steam Piping: Main steam lines, hot reheat (HRH), cold reheat (CRH), boiler feedwater piping, and flange insulation blankets.

Industrial Compressors (Hot or Cold Service)

ATC manufactures specialized removable jackets for centrifugal, axial, and reciprocating compressors across refinery, petrochemical, pipeline gas compression, and cryogenic facilities:

Compressor Area Insulated	Method of Insulation	Performance Benefits
Compressor Body & Barrel Casing	Single or Double Layers	Thermal & Acoustical Protection, Condensation Control
Suction & Inlet Nozzles	Single or Double Layers	Thermal Isolation, Acoustic Noise Reduction
Discharge & Outlet Lines	High-Temp Sectional Blankets	Extreme Heat Retention, Personnel Protection

Outage, Turnaround & Emergency Blanket Replacement

Planned outages—including Combustion Inspections (CI), Hot Gas Path Inspections (HGP), and Major Overhauls (MI)—require reliable insulation suppliers who can respond rapidly to damaged, oil-soaked, or non-fitting blankets. ATC provides:

• Emergency Turnaround Blanket Fabrication: Expedited 24- to 48-hour emergency manufacturing for critical path outage replacements.
• On-Site Field Measurement & 3D Templating: Technical field crews dispatched directly to your power plant to scan, measure, and verify complex turbine casing geometry.
• Exact OEM Replacement Guarantee: Fit-form-and-function replacement blankets matching or exceeding original OEM specifications at substantial cost savings.

Engineering Materials & Technical Specifications

Specification Parameter	Advanced Thermal Corp Standard
Maximum Continuous Temperature	Rated from 500°F (260°C) up to 2,300°F (1,260°C) continuous exposure.
Outer Jacketing Fabrics	Silicone-coated fiberglass, PTFE/Teflon® coated fiberglass, Stainless Steel knitted wire mesh, aluminized fiberglass.
Inner Liner Fabrics	Inconel® mesh, 304/316 Stainless Steel wire mesh, Silica cloth (1,800°F+), Ceramic cloth.
Insulation Core Media	High-density E-glass needle mat, high-purity silica mat, pyrogel/aerogel composite, ceramic fiber.
Fastening Hardware	Stainless steel lacing anchors, tie wire, stainless steel springs, high-temp belts with D-rings, Nomex® Velcro®.
Safety & Compliance Standards	OSHA personnel burn protection (< 140°F / 60°C touch temp), ASTM C1057, ASTM E84 / UL 723 flame and smoke rating.

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