Steam Turbine Inspection & Repair Services

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Turn-Key Inspections

Power Services Group (PSG) has the ability to provide full turnkey inspections on steam turbine generators for most OEM manufacturers. PSG provides total turnkey outage performance including technical direction, engineering, project management & coordination, supervision, labor, tooling, repairs, parts sourcing and/or manufacturing, and start-up support. We support fossil and nuclear steam turbines ranging from 1MW to 1,300MW for all major OEMs. We service all industry types including, but not limited to: industrial, paper/pulp, marine, steel/aluminum, chemical and petrochemical, utility, nuclear, and independent power producers.

Services Provided: Common Repair Services:
  • Open, Clean, Inspect, Close (Outage Services)
  • Valve & Bearing Inspection and Repairs
  • Steam Path Component Inspection and Repairs
  • Major Overhaul Planning and Execution
  • Shop Repair Services
  • Field Repair Services
  • Forced Outage Responsiveness
  • Multi-Year Service Agreements
  • Engineering/Consulting
  • Reverse Engineering
  • Parts Manufacturing
  • Generator Inspection, Testing, and Repair
  • Running Condition Assessments
  • Unit Installation/Relocation
  • Nozzle and Diaphragm Refurbishment
  • Blade Ring Refurbishment
  • Seal and Packing Machining and Replacement
  • NDE Services
  • Dish Removal and Re-rounding Services
  • Blade/Bucket Replacement
  • Erosion Shield Replacement
  • Lashing Lug Weld Repair
  • Tennon Welding and Refurbishment
  • Cover Replacement
  • Bore Plug Removal and Installation
  • Balancing Services
  • Valve Reconditioning
  • In-House Nitriding Services
  • Stellite Application Services

 

 

 

In-House Gas Nitriding

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We have in-house nitriding capabilities to provide you with a quick turnaround of your critical components.  Gas nitriding is a surface hardening process, where nitrogen is added to the surface of steel parts using dissociated ammonia as the source. Gas nitriding develops a very hard case in a component at relatively low temperature, without the need for quenching. As a result, a very high strength product with extremely good wear resistance can be produced, with little or no dimensional change. For valve components, these material enhancements translate into increased durability and service life and ultimately, reduced maintenance cost.  

Please contact us today to discuss when we could nitride your component and how we can expedite all of your future component nitriding needs.   We have the capability to nitride around the clock, providing you with more opportunities to nitride your components at a schedule that is convenient for you.  Our nitriding oven can accommodate components up to 38″ in diameter and 100″ in length.

We look forward to working with you for all your critical component needs.

Alstom GT8 & GT11 – A, B, & C Inspections

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Power Services Group (PSG) provides comprehensive maintenance, repair and overhaul support for Alstom-manufactured GT8 & GT11 gas turbines used in the power generation, oil & gas and industrial markets.

From single engine owners to large fleet operators, Power Services Group ensures that owners and operators of Alstom gas turbines receive high-quality, innovative and cost-effective solutions that are tailored to the needs of their individual operational goals.

We offer expert field services for borescope inspections, planned and unplanned maintenance, and unit troubleshooting. Our supply chain partners provide advanced technology component repair service and capital part manufacturing solutions.

Experience Matters – We have completed over 120 outages on Alstom GT8/GT11 equipment, providing you with an experienced service provider for your Alstom Gas Turbines.

Please contact us today to discuss how we can help you with your next A, B, or C inspection on your GT8 or GT11 equipment.

January Safety Update

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We’ve completed the month of January with zero OSHA-recordable injuries and have a TRIR of 0.00 for the year. We continue to be proactive in identifying potential hazards and maintaining our safety-first mindset. Great job by our HSE Director, Shannon Scruggs, and each one of our Project Management teams for engraining our safety culture throughout the teams working at site. Nice job everybody!

Steam Turbine Blade/Bucket Replacements

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If you have any upcoming steam turbine blade/bucket replacement projects please contact us today to receive a budgetary estimate on the cost and schedule for that project.  Our organization is comprised of highly qualified people who have the necessary experience to perform steam turbine blade/bucket replacements at the highest level of quality. We believe that having quality personnel makes an organization great, and have hired some of the best people in the industry to better serve our customers.  We look forward to earning an opportunity to work with you on your next steam turbine blade/bucket replacement project.

To see a video of a low-speed balance performed at our repair facility please click on the below photo:

More examples of blade/bucket replacements in progress:

 

 

Steam Turbine Diaphragm Dishing Repair

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Diaphragm “dishing” due to creep is prevalent in many types of steam turbines.  A viable repair must both correct the dishing prevalent in the diaphragm, while helping prevent future occurrences.

We have developed a procedure that straightens diaphragms even after they are beyond the specifications that typically lead to a replacement recommendation.  The proper combination of stress-relieving and pressure at specific points along the diaphragm has allowed us to repair diaphragms that exhibit extreme dishing.   In certain diaphragm designs, such as with the D-11 Steam Turbine, the diaphragms may even be reinforced with bridges to mitigate future dishing.   We have performed this repair on diaphragms that have been in service for over a decade now, showing tremendous improvement compared to previous major inspections.

If you have a steam turbine that is prone to diaphragm dishing please contact us today to discuss how we may be able to help you prolong the life of your steam turbine diaphragms and prevent costly replacement.  

Looking to order Steam Turbine Valve Components?

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Contact us today to learn how we can provide you with high quality/low cost valve components for your Steam Turbine.   We manufacture a variety of valve components for various Steam Turbine OEM types for the fossil and nuclear industries.

Whether it be to replenish your stock or for an upcoming turbine outage need, we have a solution for you.  We can also reverse engineer and manufacture components through the simple process outlined below.

 

  • Sample Received– Whether it’s a stock item or an item made to order for a special application, the process begins with a new or used sample.
  • Reverse Engineering – After receiving your sample, we confirm all required properties using our state of the art equipment; properties such as dimensions, hardness, and material composition.
  • Design – From the reverse engineering data, a detailed CAD manufacturing drawing is created in accordance with international design standards.
  • Price Estimate – A price estimate is provided to the customer for the finished part. Typically, savings are in the range of 15-30% under standard retail pricing. More savings can be realized as production quantities increase.
  • Manufacture – Upon agreement on the design and price, we manufactures the part, keeping you updated on status along the way. After passing a stringent quality inspection, parts will ship immediately.

We look forward to developing a custom plan to help you improve quality and reduce the cost of your critical steam turbine valve components.

Gold Safety Award!

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ConstructSecure Recognizes its Safest Contractors & Vendors

Safety Assessment Program – Gold Safety Award

Lexington, MA: ConstructSecure, Inc., a cloud-based mobile platform that empowers clients to make smarter risk management decisions, has announced the recipients of its prestigious safety awards. Orbital Energy Services has received the Gold Safety Award . This award is presented to companies that register a safety score score between 85% – 95% in the Safety Assessment Program administered by ConstructSecure.

“Orbital Energy Services has done a remarkable job of implementing a strong safety management system. In addition to keeping employees safe, safety performance of this caliber should reduce their insurance premiums,” says Garrett Burke, CEO of ConstructSecure.

The Safety Assessment Program reviews a company’s historic safety performance and current safety management systems. The platform normalizes data for vendor or contractor size and type of work performed. The program provides thorough, objective and consistent evaluation of company performance so clients can identify, monitor, and manage risk smarter. The results provide a strong indicator of how a vendor or contractor values safety and a reliable predictor of future performance.

About ConstructSecure: ConstructSecure, Inc. is a global SaaS company. Our cloud-based and mobile platform empowers clients to make better risk management decisions. Proprietary algorithms, developed at an Ivy League University, leverage safety and financial indicators to accurately pre-qualify vendors. The data captured by our suite of solutions ensures that our clients, and their subcontracted vendors, are not only meeting regulatory standards but are approaching safety in a way that positively impacts their number of injuries, loss rate, EMR, defaults, insurance premiums, and their overall financial health.

Steam Turbine Valve Component Inspections

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We perform various steam turbine valve component inspections for steam turbines all across the country.  We recently completed a shop inspection of D-11 steam turbine valve components at our world-class facility in Gainesville, Georgia.  The original scope of work for these valves was to disassemble, clean, dimensionally inspect, perform NDE, and provide inspection results and recommendations to the client for disposition. “As Found” dimensional data along with the final NDE inspections were provided to the customer to aide in their decision-making process.

After component inspections are complete we communicate with the customer to determine the best course of action for their components, execute the repair/replacement (if necessary), and return the valve assemblies to the site.

In this instance we inspected the following D-11 steam turbine valves:

  • Reheat Stop Valve
    • RHSV-Left
    • RHSV-Right
  • Intercept Valve
    • IV-Left
    • IV-Right

If you have any upcoming steam turbine valve component inspections please CONTACT US today and we can send you a sample inspection report, as well as a quotation for completing the inspections.

Click here to learn more about our Southeast Service Center

Click here to learn more about our Steam Turbine Valve Component Manufacturing

Click here to learn more about our Steam Turbine Valve Component Repair Services

2020 Safety Accomplishment

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Power Services Group (PSG) is proud to announce that we finished 2020 with no OSHA-recordable incidents.

Our TRIR for 2020 is 0.00

This is a testament to the excellent safety culture that we’ve built over the years and the ability of our Technical Field Advisors, Supervisors, and Project Coordinators to instill a safety-first mentality on each and every project we complete.

Join us in congratulating our Director of HSE and project teams for this outstanding accomplishment, they make it happen each and every day and they are the reason for our success. At the end of the day the most important part of any project is that everyone is able to go home safely, and our entire organization has embraced that mindset and made it a reality.