Steam Turbine Repairs

For over three decades, MD&A has proudly offered comprehensive refurbishment of steam turbine-generators. We employ accomplished, self-motivated turbine and generator technical experts to complete your steam turbine repairs. MD&A’s engineers practice effective, time-tested principles that produce sound and superior repair solutions to aging fleet issues.

Our one-stop-shop, Turbine-Generator Repair facility is fully equipped with overhead cranes, 100-ton lathe, and all support equipment for inspections and repairs. The facility capabilities include Stationary Component Repair, such as diaphragms and blade rings, and Rotating Component Repair, such as Bowed Rotor Straightening, Blade Replacement, Journals and Couplings.

Other specialty turbine-generator repair capabilities include turbine Casing/Shell analysis & renovation after a failure and proprietary distortion correction techniques to permanently address issues associated with out-of-round shells, nozzles, and other critical steam path components.  We also offer rotor welding. 

Within our Turbine-Generator Repair facility, our high speed balance facility is one of the most modern balance facilities for power turbines in the world. Proper balancing of the turbine and generator rotors is extremely vital to ensure proper operation. The facility allows for effective testing to ensure minimal vibrations in any manufacturer’s rotor throughout testing.

This same facility offers machining services. Our machining capabilities include the ability to on-site or in-shop repair of horizontal joints, nozzles, packing box heads and nearly any rotating or stationary turbine-generator component.

Additionally, MD&A maintains several portable machine shops for use during customer’s plant projects. Shops are contained in portable Conex trailers for easy lifting once we deliver them to your door. Our portable machine shops come stocked with metal grinders, a drill press, lathe, and other handy tools needed to address metals work projects.

Our experts offer full-service, one-stop valve repair and upgrade of all high pressure steam valves and complete refurbishment of Rexroth® hydraulic (turbine valve) actuators with an inventory of disc springs, seals and retainers for short-cycle turnaround.  A specialty is a Westinghouse® horizontal throttle valve upgrade.

MD&A Bearings, Seals & Hydraulics Division provides complete refurbishment of steam seal regulators, as well as functional testing and refurbishment of MHC operating governors and power actuators to reduce the need for field adjustments during start-up. Control rotor service and testing of a mechanical overspeed governor is considered a cost-effective form of risk management by many of our repeat customers.

We also specialize in steam turbine bearing repairs, such as Tapered Land Thrust and Tilt Pad Thrust, with quick delivery. Our experts also perform precise journal bearing ball ring repairs. We also have helped many customers eliminate the undesirable effects of oil whip or steam whirl by designing, manufacturing, and repairing elliptical bearings. Also, we offer tilt pad journal retrofits and oil deflector reconditioning and bronze seal ring manufacturing.

Here are some case study blogs with specific examples:
–Rotor Steeple Indications and Diaphragm Repairs
–Rapid Bearing Repair and Journal Machining
–Steam Turbine Reheat Stop Valves Restoration

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Steam Turbine Services   |   Steam Turbine Parts