FBU Delivers High-Performance Solutions! Upgraded APOG-FB Enhanced Seal + THS System for Copper Smelting Slurry Pumps

From 2020 to 2024, FBU completed the sealing system retrofits for six WARMAN®-brand slurry pumps (shaft diameter: 145mm) at a copper smelting plant. By combining APOG-FB upgraded seals (with key components made of HAST.C276 material) and the THS sealing support system, the challenges posed by harsh operating conditions were successfully tackled, resulting in seal service life far exceeding customer expectations.

The slurry pumps handle media containing dilute sulfuric acid and metal smelting by-products, which are highly corrosive and abrasive. Conventional seals were prone to frequent failure and short lifespans. FBU provided a tailored solution: the HAST.C276 material offers excellent corrosion and wear resistance, making it ideal for harsh media. The THS system enhances seal performance through pressure regulation, impurity filtration, and temperature control, ensuring stable operation under extreme conditions.

After the retrofit, the equipment completely resolved issues such as frequent leakage and short replacement cycles, greatly reducing maintenance costs and downtime losses. This upgrade supports the smelting plant in ensuring production continuity and improving operational efficiency. This successful project highlights FBU's technical expertise and customization capabilities, demonstrating its commitment to delivering high-quality sealing solutions for industrial equipment needs.

Operating parameters of APOG-FB

Temperature	Pressure	Speed	Material
-20~200℃	≤40bar	≤30m/s	316SS,Duplex,Alloy20,Hast.C276,Titanium,Zirconium etc.

The APOG-FB Primarily utilized to suit the requirements of the Oil and gas industry application defined by API682.Balanced integral ring design can better resist pressure fluctuations in the sealing chamber.Integrated bidirectional flow design,unique pump efficiency ring design,and significant circulation effect of buffer/barrier fluid.