Centrifugal compressors

On-site field Services

Installation and commissioning

  • Technical assistance during the installation
  • Turnkey contracts for the installation of equipment with the support of compressors OEM.
  • Technical assistance during the commissioning and start-up of the equipment


On-site expertise and diagnosis

We propose missions of specialised engineers to perform operation audits of the equipment in order to determine the condition and the performance of machines or the root cause of an abnormal operation.
The main analyses performed during the audits are :

  • Gas characteristics analysis
  • Control and adjustment of the anti-surge systems
  • Determination of the performances and efficiency of the machines in real conditions of operation
  • Vibration analysis
  • Oil analysis
  • Boroscopic inspection
  • Predictive, preventive and corrective maintenance on site,
  • Multi-annual maintenance contracts

Workshop repair

Our maintenance and machining workshops in Montardon carry out overhauls of rotating machines.

CLEMESSY SERVICES TURBOMACHINES proposes refurbishment, up grades and repair of machines :

Centrifugal compressors

  • Sandblasting and glass bead blasting of rotors
  • Rotor balancing at low and high speed
  • Demagnetisation of the rotors and stators


Auxiliary equipment

  • Lube oil systems
  • Cooling water and lube oil pumps
  • Inspection and calibration of gas engine speed controller
  • Refurbishment of bearings bushings
  • Overhaul of gearboxes (pump, reduction gear, valves…)
  • Inspection and non destructive test: magnetic inspection, dye penetrant testing, ultrasonic inspection
  • Reverse engineering components using basic methods, parts’ measurement, 3D scanner


CLEMESSY SERVICES TURBOMACHINES propose solutions for the storage of rotors increasing the preservation and limiting the risks related to the handling / lifting operations and storage on site.

  • Storage in specific containers :
    We can design and manufacture specific containers to protect all types of rotors and major components. The containers are designed for a vertical storage and pressurised with nitrogen.

Complementary services

Maintenance contracts

CLEMESSY SERVICES TURBOMACHINES offer various types of service contracts :

  • Technical support contract
  • Maintenance contract specific to unit shutdowns
  • Multi-annual service contract
  • Multi-annual maintenance contract with best effort obligations


Spare parts

CLEMESSY SERVICES TURBOMACHINES provide spare parts necessary to the overhauls and maintenance contracts through relationships with OEM.

CLEMESSY SERVICES TURBOMACHINES also manufacture and provide parts such as :

  • Tightness of centrifugal compressor
  • Small and complex parts requiring engineering and machining
  • Parts for process valves & safety valves…
    • Specific gaskets
    • Specific fasteners


Revalorization of machines

CLEMESSY SERVICES TURBOMACHINES, with the support of an OEM partner as well as with its own engineering and design services, is able to propose up-grades for centrifugal and reciprocating compressors such as:

  • Installation of temperature and vibration probes in bearings
  • Replacement of lubricated gear-couplings with non-lubricated couplings