Power Generation Market Services

Wabtec Repairs Services ASME Code Certified Welders

ASME Code Certified Welders

ASME Code Certified Welders
Whether manufacturing new or replacement coolers, repairs and reconditioning, Unifin uses only ASME Code Certified welders. This includes both ferrous and non-ferrous materials as applies to:

  • MIG Welding
  • TIG Welding
  • Stick Welding
  • Brazing

Wabtec Corp CleanTest Inspect Diagnostic Service

Clean Test and Inspect (CTI)

Clean / Test / Inspect (CTI) Diagnostic Service
Corrosion and the hindrance of heat transfer caused by fouling in heat exchangers are the main reasons for an increase in energy, operating and maintenance costs of a generator. That’s why coolers must be inspected, cleaned and tested on a regular basis. Our standard CTI Service includes a hydrostatic test of the coolers in the received condition (to identify any leaks), a general steam cleaning, replacement gaskets when applicable, and a written initial and final test report.
Regardless of initial test results, the water/headers are removed for evaluation. At that point Unifin issues a set of recommendations and work scope.

Wabtec Designs Testing Consulting Engineering Services

Engineering Services

TransTech's team of engineers works to innovate and streamline products with decades of performance reliability.  They are available for consultation, design, and testing services.

Engineering Services Gerken Group Wabtec Corp

Engineering Services

The Gerken group specializes in the design and manufacture of graphite components. Gerken invests continuously in the development of new products to meet the expectations of different markets. We have set up teams and material resources dedicated to the design, design, development and validation of innovations.
 
In addition, we have set up research and development facilities at the Gerken sites in Belgium and Gerken SAS in France. Gerken SAS has a design office able to answer all the demands of its customers in the railway, industrial and wind sectors, as well as a test center allowing us to reproduce the often extreme conditions of use Devices and components.
 
Our development tools:

  • SolidWorks®: 3D Design and Construction
  • Software SolidWorks® Simulation Premium
  • AutoCAD®: 2D Drawing Software

 
We offer:

  • Creative problem solving
  • Project Management (AMDEC, RAMS Studies, Maintenance Manuals)
  • Optimization: standard parts / quantities / budgets and costs

Iron castings

Iron Castings

SanCasT produces high-quality castings in weights ranging from one to 120 pounds on our Hunter® 20 X 26 and BP® 20 X 26 molding machines in the following irons: 

  • Class 25 and Class 30 Gray Iron
  • Acicular Gray Iron
  • Ferritic Ductile Iron
  • Pearlitic Ductile Iron

Wabtec Power generation Repairs Reconditioning Coolers

Repairs / Reconditioning

Repairs / Reconditioning
Unifin can help extend the life of your coolers by repairing key elements such as water boxes and/or tubesheets when needed. After blasting we apply a polymer filler and epoxy coating.
Lead Carbonate Decontamination service is also available.

Wabtec power generation cooler Replacements Servicing

Replacements

Replacements
When cooler conditions are more serious, with plugged / corroded tubes, degraded tubesheets and/or waterboxes, the recommended corrective action is cooler replacement. Unifin can provide brand new in-kind replacements designed to be physically interchangeable in form, fit and thermal function with the originals. And because we often have the original design drawings for existing coolers, we can do this sight unseen – saving you the time and expense of sending us the originals ahead of time for estimating purposes.
The average age of hydrogen coolers at time of replacement is 27 years, with 35 years for air type coolers.

Research Development Gerken Group

Research and Development

Research and development is located in Gerken SA in Belgium, Gerken SAS in France, and Pantrac in Germany.  In France, we have invested in test facilities designed to replicate, as closely as possible, the extreme environmental conditions our carbon brushes can operate under in wind turbine applications.

Wabtec PTC Positive Train Control service maintenance

Service & Maintenance

Our Napier overhaul service takes place in the Turbonetics factory in Moorpark, CA where we remanufacture complete turbochargers or cartridges to OEM standards. During the process, the units are stripped down and analysed by our technical experts to assess where parts may need to be replaced to achieve ‘as new’ condition. Overhauling products in this way helps to reduce your costs and maintain the highest levels of performance. We also supply a full OEM warranty, and certificate of conformity and authenticity for all remanufactured products.

Wabtec train pressure hydro Testing oil coolers

Testing

Testing
All coolers manufactured or repaired by Unifin are subject to pressure (hydro) testing:

  • 1 Hour Duration
  • Test Pressure at (1.33 – 1.50) X Design Pressure
  • “Pass” = No Leaks / No Distortions
  • Pneumatic Air (vs Water) Test for Oil Coolers

Eddy Current testing is also available for tube erosion assessment.

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Upgrades / Updates

Vintage Spiral Fin cooler designs often contain lead-based solder, which could lead to lead carbonate contamination throughout the entire generator system, while Plate Fin designs do not. Unifin offers Spiral Fin to Plate Fin redesign replacement solutions to eliminate this potential issue while resetting your cooler life cycle. Our other upgrades also include material substitutions for improved performance.