Gas Turbine Systems

Boldrocchi is one of the few companies in the world to provide all systems around gas turbines from air intake systems to stacks, and everything in between including diverters & dampers and enclosures. Having worked with the largest OEMs, we have over 1,000 gas turbine auxiliary systems installed in power plants around the world.

Our Integrated Approach for Gas Turbine Power Plants

Boldrocchi's integrated approach for gas turbine power plants

We Provide

Air intake systems

  • Intake duct systems
  • Silencers
  • Filter housings
  • Inlet air cooling systems
  • Wet compression for GT enhancing performances
  • Inlet air pre-heaters
  • Anti-icing systems

Acoustic enclosures / hoods

Fresh air fans

Steam silencers

Simple cycle exhaust gas systems

  • Diffuser to stack
  • Silencers
  • Vertical Stack
  • Provisions for late conversion to combined cycle

Cooling systems

  • Air Cooled Heat Exchangers
  • Electrical Machine Coolers (motors, generators, transformers)

Fresh air dampers

Combined cycle bypass systems

  • Diffuser to stack
  • By pass diverter dampers (single & multi-blade)
  • Guillotine dampers
  • Blanking plates
  • Silencers
  • Vertical Stack

Ventilation systems

Stack & weather dampers

Stack silencers

Gas Turbine Systems & Noise Protection Case Studies


Delivering Diverter Damper Systems to Nigeria Within a Mere 4 Months

In 2016, Boldrocchi was awarded a contract to supply eight (8) diverter damper systems for six gas turbines, to be installed at a refinery in Lekki, Nigeria. The goals: achieve reduced wear & extended operational life. Thanks to our large in-house facilities, all 8 were assembled at once. They were then tested in-house in the presence of the customer’s inspectors. Turnaround was very short – at least for the first two – and Boldrocchi delivered within a mere 4 months.

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Helping Close an Open-Cycle Circuit on a Gas Turbine in Oman

Boldrocchi helped close an existing open cycle circuit on a GE turbine in Amal. We designed four various dampers and diverters and had them made on-site, constantly supervising fabrication. Installation of the diverter, also supervised by Boldrocchi, was a significant challenge: the diverter measuring 5.2 x 5.2 m (17’ x 17’) had to be fit into the existing circuit with a mere 20 cm (8”) clearance!

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Boldrocchi Successfully Tests 7m X 7m Diverter for Gas Turbines

Boldrocchi welcomed over 30 customers from some of the largest OEMs to its in-house testing facilities near Milan, Italy in 2018, for the functional testing of an enormous 7m X 7m (23’ X 23’) diverter damper. The gas turbine diverter, one of three delivered to the client, not only offers extreme capacity, but surpasses the norm in terms of geometrical sealing, sealing pressure and closing time, while reducing maintenance and easing transportation and assembly.

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