In specialized industrial processes, not all pumps are created equal. High-value equipment like Sulzer® Scanpump series, MCA/MCE Medium Consistency (MC) pumps, and MBN Multistage pumps operate under conditions that would cause standard seals to fail in hours. When sourcing replacements, technical teams need more than just a part—they need a high-precision engineering solution.

At FBU Sealing Technology, we specialize in the "hard-to-find" and "high-requirement" mechanical seals. Our 2200 series includes specific models designed to match the unique requirements of Sulzer’s specialized fleet, ensuring your critical processes keep running without the OEM price tag or lead time.

1. FBU 2245: Sustaining Performance for Scanpump Systems

Scanpump legacy systems remain vital in many global pulp and water facilities. However, finding reliable SE2Creplacement seals can be a challenge.

The Solution: The FBU 2245 is designed as a direct, high-performance replacement for Scanpump series.

The Technical Edge: We have optimized the seal chamber fit and stationary spring design to accommodate the vibration and shaft movements common in these aging but reliable systems.

 

2. FBU 222M: Engineering for Medium Consistency (MCA / MCE)

Pumping 8-16% consistency pulp is one of the toughest sealing tasks in a mill. The air content and high fiber density in Sulzer® MCA and MCE pumps require a seal that won't clog.

The Solution: The FBU 222M (replacing JCS1MC/JCS2MC) is built for this exact task.

The Technical Edge: Featuring an open-profile design and reinforced drive mechanisms, the 222M resists fiber buildup. We offer specialized face materials like Sintered Silicon Carbide (SSiC) to withstand the abrasive nature of MC pulp.

 

3. FBU 2237: High-Pressure Reliability for MBN Multistage Pumps

The Sulzer® MBN series requires high-pressure stability, often used in boiler feed or high-pressure water injection.

The Solution: The FBU 2237 is our replacement for the JCS1FM series.

The Technical Edge: It features a balanced design capable of handling significant pressure surges and a spring structure located on the stationary side to prevent "pumping up" or failure due to shaft misalignment.

 

A Technical Partnership Beyond the Catalog

Customization for Demanding Environments

As your technical partner, FBU understands that "standard" materials often fall short in specialized pumps.

Material Upgrades: For MCA pumps handling aggressive chemical pulp, we can upgrade O-rings to FFKM and use specialized coatings on the seal faces.

Precision Testing: Every FBU 2237 and 222M undergoes 100% static and dynamic pressure testing to ensure it meets the safety margins required for high-pressure and high-consistency service.

 

Global Supply for Specialized Spares

Specialized pumps often suffer from extremely long OEM lead times—sometimes 12 to 20 weeks. At FBU, we maintain a agile manufacturing and stocking program in our Suzhou facility. We can often ship customized 222M or 2237 seals in a fraction of the time, keeping your downtime to an absolute minimum.

FAQ

1. Can the FBU 222M handle air-laden pulp in MCA pumps? 

Yes. The 222M is specifically designed for Medium Consistency (MC) applications where air and fiber are present. The seal faces and internal clearances are optimized to prevent air-lock and ensure constant lubrication.

2. Is the FBU 2245 compatible with all Scanpump models? 

The 2245 is designed for the most common Scanpump configurations using the SE2C seal. We recommend providing your pump's serial number so our engineers can verify the 100% dimensional fit.

3. What pressure rating does the FBU 2237 support for MBN pumps? 

Our 2237 series is built to support process pressures up to 25 bar (approx. 360 psi) as standard, with custom options available for even higher pressure ratings, matching the requirements of multistage water injection.

4. Do you offer localized support for international pump dealers? 

Yes. We work closely with international distributors by providing technical drawings, material certifications, and rapid air freight, acting as their "factory-direct" engineering arm.