FGD Seal Repair

Large Flue Gas Desulfurization Slurry Seals Repair Services

Factory-Certified Repairs for FGD Systems

Flue gas desulfurization systems demand reliable sealing solutions to keep operations compliant and efficient. Pro-Seal Service Group's factory-certified repair centers specialize in restoring FGD slurry seals, agitators, and mechanical components to like-new performance. From engineered repairs to complete dual sealing upgrades, we deliver proven results for critical applications in power generation and heavy industry.

As a trusted repair provider for industrial pumps and equipment, we understand the challenges of wet limestone forced oxidation systems. Our team combines engineering expertise with advanced repair processes to extend seal life, reduce downtime, and improve long-term reliability.

Servicing All FGD Mechanical Sealing Systems

Our experience covers every seal in the FGD process, including:

  • Mill slurry tank
  • Limestone slurry storage
  • Gypsum bleed pumps
  • Absorber recirculation pumps
  • Including the agitator drives and respective sealing system and shut down devices.

Whether you operate large-scale facilities with industrial equipment and pumps or specialized agitators, we provide the service and precision needed to keep systems running efficiently.

FGD Compliance and Reliability Improvements

 

sketch of FGD Absorber Agitator Seal

Specializing in Complete Repairs

We handle mechanical seal repairs up to 20" shaft diameter, including:

  • AES CDPH / FGDSS
  • Burgmann HR Series Slurry Seal
  • Flow Serve RIS, SLM, SLC
  • Huhn Seals
  • John Crane 5860 Series

All repairs are tested to API 682 specifications to ensure performance. For absorber agitator seal repairs, we support Chemineer, Ekato, Lightnin, Sharpe, and Philadelphia systems. Our repair facilities are equipped to restore industrial pump equipment and slurry seals for the most demanding environments.

 

Our Certified Repair Process

As an AES Certified Mechanical Seal Repair Center and officially approved by BPX and ConocoPhillips, we follow strict standards, including API 682 and AES Seal Repair Guidelines. Our repair process includes:

FGD Seal Repair FAQs

Can FGD slurry seals be upgraded instead of replaced?
Yes, in many cases they can. We often re-engineer existing seals or upgrade them to dual sealing solutions that improve reliability and compliance. This approach can save you money while also extending service life, especially in demanding flue gas desulfurization systems.
How do I know when it's time to send in a seal for repair?
If you notice leaks, reduced performance, or unexpected downtime in your FGD system, it's usually a sign that the seal needs attention. Even small irregularities can escalate quickly in slurry applications. Sending a seal in early often means a faster, less expensive repair and less risk of damage to connected equipment.
Do you only service large utility-scale systems, or can you handle smaller setups too?
We handle both. While much of our work involves utility-scale absorber recirculation pumps and agitators, we also repair and service seals in smaller slurry tanks and storage systems. No matter the size, our process is the same: restore performance and keep your operation compliant.
What testing do you perform after repairing FGD seals?
Every repair is validated against API 682 specifications, which is a strict international standard for mechanical seal performance. We also run dynamic and static tests that simulate the real operating environment. That way, when the seal goes back into service, you can be confident it will perform as expected.
Can you help with troubleshooting recurring seal failures?
Of course. If your seals are failing more often than they should, it may point to issues beyond the seal itself—like slurry chemistry, equipment misalignment, or operating conditions. Our team not only repairs the seal but also helps identify root causes so you don't keep running into the same problem.
worker using tablet to work on industrial equipment

A Fluid Company in a Fluid Industry

Keeping complex equipment in motion takes expertise, reliable service, and long-term support. That is why we pair high-quality products with complete repair capabilities and responsive customer care, giving you everything you need to maintain performance and reduce downtime.

Each of our three product areas is led by experienced in-house specialists who know the challenges you face and the solutions that work. The result is smarter repairs, stronger equipment, and a lower total cost of ownership over the life of your systems.

See how our Total Strength Package can support your plant operations.

SPEAK TO A ProSeal SPECIALIST
worker using tablet to work on industrial equipment

Ready to Strengthen Your FGD Systems?

Slurry seals and agitators are critical to compliance and uptime. Don't let failures put your operation at risk. Our certified repair centers in Michigan and Alaska are equipped to restore, upgrade, and test FGD seals so your systems perform with confidence.

Whether you need support for complex flue gas desulfurization repair projects or maintenance on specialized systems like oil industry pump equipment, our team delivers proven solutions to keep your operation running.

Contact Us
(800) 525-4553

Michigan

(248) 758-0500 35 Silverdome Industrial Park West
Pontiac, MI 48342

Alaska

(907) 283-0500 43784 Kenai Spur Highway
Kenai, AK 99611

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