Hot Gas Expanders

Sulzer Turbo Services supports the repair, replacement of parts and complete overhaul of all power recovery, refinery tail gas ammonia/nitrogen hot gas expanders.

Typical general services include: disassembly, cleaning, NDT and dimensional inspection of all expander parts. Following repairs, complete assembly is also performed. Specific services include: removal of rotor blades, unstacking of built up rotors, repair and/or replacement of all component parts such as blades, vane segments, diaphragms, labyrinth seals, spacer sleeves, bearings, couplings trip and throttle components, valve racks, stems, linkages and much more.

Complete reverse engineering through modern stationary and portable CMM equipment, together with the latest generation modeling software allow us to replace rotors via reverse engineering while upgrading them at the same time in many cases. Our full machine shop capabilities include advanced rotor restoration welding at most facilities as well as CNC and conventional horizontal lathes and both horizontal and vertical boring mills. Other specific services include coatings applied to hot gas path components for erosion and corrosion protection, stellite shield removal and installation, and the restoration of expander components through a variety of welding/machining and coating techniques.

Our professional engineers are on staff at all of our facilities to guide the repair process at all times. Individual component part balancing and moment weighing/charting is done prior to full rotor balancing, which can be performed at both low and full operational speed. Assembly of rotor, and then reassembly of whole machines finishes the restoration process at our shop and we offer a full service Field Service Division to return your machines to operation at your plant location.

We are an ISO9001-2000 certified organization that competes against all manufacturers and provides competitive solutions in a timely, cost-effective manner. We are a unique opportunity for our clients to experience service the way YOU expect it to be. We seek your total satisfaction.


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Copyright Sulzer Turbo Services Ltd, 2008