REPAIR SERVICES

The combination of JOHN BROWNTM ENGINEERING LTD in-house built software with the most advanced technologies allows us to offer our customers the highest caliber of repaired stationary and rotating gas turbine parts in order to minimize their turnaround time.

Building on the extensive expertise derived from JOHN BROWNTM ENGINEERING LTD International BV, The Netherlands, and Thomassen Service Gulf LLC, Abu Dhabi, a former business associate of General Electric, all staff working in the facility have extensive experience and are highly qualified in the repair of combustion and hot gas path components such as turbine nozzles, combustion liners, transition pieces and fuel nozzles.

JOHN BROWNTM ENGINEERING LTD has been operating a workshop facility at Sohar
2009

for the repair of Hot Gas Path components for GE Frame 5, Frame 6 and Frame 9 heavy duty gas turbines.

Thomassen has been working on the optimization of repair procedures and technology
2013

and as a result more and more repair and design activities are now being done in-house. In addition to GE Heavy Duty Conventional, FA & DLN Frame Technology, Thomassen is also capable of repairing Hitachi H25, Siemens v94.2, ABB 13D as well as LM2500 & LM600 GE aero-derivative turbines.

expansion and relocation
2014

of the repair workshop at Nizwa Industrial Estate was done which has extensive and state of the art workshop facilities for the repair of gas turbine hot gas path components.

All procedures and working methods are supported by dedicated blasting, welding, heat treatment and coating systems to create the ideal environment to achieve the required quality and efficiency targets. In order to guarantee a proper fit of the repaired components in the gas turbine once returned to site it is necessary to check important clearances using jigs which simulate actual turbine internal geometry.
Combustion Components
  • Fuel Nozzles
  • Liners
  • Cross Fire Tubes
  • Transition Piece
  • Flow Sleeves
Turbine Components
  • Nozzles and Diaphragms
  • Shroud Blocks
  • Buckets
Rotor Repair
  • De- and re-rack of rotors
  • Compressor Blade replacement
  • Turbine Rotor Rebuilds
  • Balancing

Workshop facilities:

  • Inspection: Identification, Base material & coating verification, metallurgical investigation, Dimensional check, Fluorescent and Red Dye Penetrant NDT & Borescope inspection
  • Cleaning & Blasting: Ultrasonic cleaning, high pressure water & air cleaning, Sand blasting
  • Welding: TIG welding
  • Machining: Grinding, contouring, milling, EDM,
  • Heat Treatments: Solution heat treatment & vacuum furnace
  • Coating: Plasma spray thermal barrier coating, Hard face coating
  • Testing: Gas and Liquid Fuel Nozzle Flow test & calibration, Control valve calibration test bench, harmonic testing, static frequency, assembly check
  • Laboratory: Metrology laboratory, Reverse engineering, QA/QC control, Dimensional control, 3D Scanner and CMM

Your Operation & Maintenance Partner

2024 John Brown Group. All Rights reserved – Design by papa

Main Branch

2nd Floor College House
17 King Eduard’s Road, Ruislip,
London, United Kingdom HA47A

Phone

Jordan (+962) 790709637
Iraq (+964) 780101441

Email
Interested in working with us?
anwer@johnbrowngroup.com
2024 John Brown Group. All Rights reserved
Design by papa