Replacement Mechanical Seals for
Flygt Pumps
Hong Teng supplies replacement mechanical seals for selected Flygt pump models used in wastewater treatment, sewage pumping, drainage and other industrial pumping applications.
Our available range includes upper mechanical seals, lower mechanical seals and cartridge mechanical seals for different Flygt pump series.
Use the pump model search below to find a compatible replacement seal, or send us the complete pump model and nameplate for identification.
Know your Flygt pump model? Enter it below to find a compatible mechanical seal.
Find a Flygt Mechanical Seal by Pump Model
Use the table below as a quick reference for replacement mechanical seals currently available from Hong Teng. Pump models may have different seal arrangements depending on the exact pump version and installation position. Always confirm the complete pump designation and existing seal before ordering.
| Seal Model | Pump Number | Application | Action |
|---|---|---|---|
| FS-20 | 2610 | 2620 | 2630/2640 | 4610/4620 | Cartridge | View Seal |
| FS-25 | 2660 | 4630/4640 | Cartridge | View Seal |
| FS-35 | 2670 | 3153.090/180 | 3153.091,095,181/185 | 5100.210,220/221 | 5100.211 | Cartridge | View Seal |
| FS-45 | 3171 | 4650/4660 | 5100.250,251,260/261 | Cartridge | View Seal |
| FS-60 | 3202 | 4670/4680 | 5100.300/310 | 5150.300/310 | Cartridge | View Seal |
| FS-90 | 3301 | 3315 | 5150.350/360 | Cartridge | View Seal |
| FGU-20 | 2060 | 3041.171/180 | 3041.281 | 3057.091/181 | 3057.180 | Upper | View Seal |
| FOU-45 | 2201.010 | 2201.011 MT/HT | 2201.011 LT | 3140 | 3151 | Upper | View Seal |
All Flygt Replacement Mechanical Seals
Browse our range of replacement mechanical seals for Flygt pumps, including cartridge, upper and lower seal designs. Use the pump model search above if you already know your Flygt pump number.
Can't Find Your Flygt Pump Model?
Not every Flygt pump or mechanical seal configuration is listed in our online database. If you cannot find your pump model, send us the complete pump model, pump nameplate and clear photos of the existing mechanical seal. We will help identify a compatible replacement seal based on the available information.
Please send:
✓ Complete pump model
✓ Pump nameplate photo
✓ Photos of the old mechanical seal
✓ Upper or lower seal position, if known
✓ Shaft diameter or seal dimensions, if available
✓ Required quantity
How to Identify the Correct Mechanical Seal for a Flygt Pump
Selecting a replacement mechanical seal for a Flygt pump should not be based only on appearance or shaft diameter.
Different Flygt pump models and variants may use different upper seals, lower seals or cartridge seal arrangements, even when the components look similar.
Start with the complete pump model and information from the pump nameplate. If the original seal has already been removed, keep both the rotating and stationary components and take clear photos before discarding them.
For a more reliable match, also check the seal position, shaft diameter, stationary seat dimensions and overall working length.
Learn More: How to Measure a Mechanical Seal→
Related Mechanical Seal Guides
Explore practical guides on mechanical seal identification, selection, installation and troubleshooting.
Learn which dimensions to measure when identifying an unknown or replacement mechanical seal.
Understand the difference between upper and lower seal positions in selected Flygt pump applications.
Learn how shaft condition and alignment problems can cause premature seal leakage and failure.
Review important installation steps, setting checks and common mistakes that can affect mechanical seal performance.
Frequently Asked Questions About Flygt Replacement Mechanical Seals
How do I find the correct mechanical seal for my Flygt pump?
Start with the complete Flygt pump model and model variant. Use the pump model search on this page to check available replacement seals. If you cannot find a match, send us the pump nameplate and clear photos of the old mechanical seal for identification.
What is the difference between an upper and lower Flygt mechanical seal?
Some Flygt submersible pumps use separate upper and lower mechanical seals. The two seals may have different dimensions, materials and functions, so they should not be selected only by appearance. Always confirm the seal position and complete pump model before ordering.
Can two different Flygt pump models use the same mechanical seal?
Yes. Some Flygt pump models and variants may share the same replacement mechanical seal. However, similar pump numbers can also use different seal arrangements, so the complete model designation should always be checked.
Can you identify a Flygt mechanical seal from photos?
In many cases, yes. Please send clear photos of the complete old seal, rotating and stationary components, pump nameplate and any available measurements. Shaft diameter, seat diameter and overall working length are especially useful for identification.
Do you supply original Flygt mechanical seals?
We supply replacement mechanical seals for compatible Flygt pump applications. Unless specifically stated otherwise, our products are replacement parts and are not represented as original Flygt parts.
What information should I provide before ordering?
Please provide the complete pump model, pump nameplate photo, upper or lower seal position if known, photos of the old mechanical seal, available seal dimensions and required quantity. This information helps us confirm the most suitable replacement before shipment.
Need Help Finding the Right Flygt Replacement Seal?
Send us your pump model, pump nameplate and clear photos of the existing mechanical seal. We’ll review the available information and help you identify a suitable replacement option before you order.
Compatibility Notice: Flygt names, trademarks and pump model numbers are referenced only to identify compatible applications. Hong Teng replacement mechanical seals are independently manufactured replacement products and are not represented as original Flygt parts.
