Product
Flygt FS-20 20 mm Cartridge Mechanical Seal 7699430
| Product Name | Flygt FS-20 20 mm Replacement Cartridge Mechanical Seal |
| Seal Reference | FS-20 / 7699430 |
| Nominal Size | 20 mm |
| Seal Type | Cartridge Mechanical Seal Assembly |
| Compatible Pumps | Selected Flygt 2610, 2620, 2630 and 2640 pump configurations |
| Compatible Mixers | Selected Flygt 4610 and 4620 mixer configurations |
| Material Configuration | Confirm according to the original seal reference, old seal and operating conditions |
| Manufacturer | Hong Teng |
| Compatibility Check | Confirm the complete Flygt model, numerical suffix, 20 mm seal size, old cartridge assembly and material configuration before ordering |
Product Details
Product Details
This FS-20 mechanical seal is independently manufactured by Hong Teng as an aftermarket replacement reference for selected Flygt equipment using a compatible 20 mm cartridge seal configuration.
| Product | FS-20 20 mm Replacement Cartridge Mechanical Seal |
| Seal Reference | FS-20 / 7699430 |
| Nominal Seal Size | 20 mm |
| Seal Construction | Cartridge mechanical seal assembly |
| Pump Applications | Selected Flygt 2610, 2620, 2630 and 2640 dewatering pump configurations |
| Mixer Applications | Selected Flygt 4610 and 4620 compact mixer configurations |
| Material Selection | Confirm against the original seal reference, old seal faces, elastomers and actual operating conditions |
| Identification Method | Complete model number, model suffix, nameplate, old cartridge photos, seal dimensions and reference number |
| Product Type | Aftermarket replacement mechanical seal |
Product Description
Product Description
The Flygt FS-20 20 mm mechanical seal supplied by Hong Teng is an aftermarket cartridge seal replacement reference for selected Flygt equipment associated with the FS-20 / 7699430 seal configuration.
Our current compatibility reference includes selected Flygt 2610, 2620, 2630 and 2640 dewatering pump configurations together with selected 4610 and 4620 compact mixers. Because the 4610 and 4620 are mixer models rather than standard dewatering pumps, the complete equipment designation should be recorded when requesting a replacement.
The nominal 20 mm size and FS-20 reference are useful identification points, but they should not be used alone. Flygt equipment can have different numerical suffixes, motor versions, shaft configurations and mechanical seal materials within the same general model family.
Before ordering, compare the complete nameplate information with the removed cartridge assembly. If the original seal is already dismantled, photograph the full assembly and record the shaft size, cartridge outside dimensions, installation length and any visible reference numbers. See our
mechanical seal measurement guide
for the main dimensions to record.
For general fitting and startup considerations for preassembled seal designs, review our
cartridge mechanical seal installation guide
.
For other Flygt seal sizes, upper and lower seal references and cartridge configurations, browse our complete range of
Flygt replacement mechanical seals
.
Flygt, Xylem, equipment model numbers and seal reference numbers are used only for compatibility identification.
This product is independently manufactured and supplied by Hong Teng and is not represented as an original Flygt or Xylem product.
Application
Applications
The FS-20 20 mm replacement cartridge mechanical seal is intended for maintenance, repair and overhaul work on selected Flygt equipment where the model, seal reference, dimensions and installed configuration match the existing assembly.
- Selected Flygt 2610 dewatering pump configurations
- Selected Flygt 2620 dewatering pump configurations
- Selected Flygt 2630 and 2640 dewatering pump configurations
- Selected Flygt 4610 compact mixer configurations
- Selected Flygt 4620 compact mixer configurations
- 20 mm FS-20 / 7699430 cartridge seal replacement projects
- Dewatering, drainage, wastewater and industrial maintenance applications where the confirmed configuration matches
- Replacement matching by pump or mixer model, reference number, sample, drawing or dimensions
Do not select the FS-20 only from the base model or 20 mm nominal size.
Confirm the complete numerical model suffix, equipment version, old cartridge assembly,
dimensions and material configuration before ordering.
How to Confirm an FS-20 20 mm Replacement Seal
Use the FS-20 / 7699430 reference and nominal 20 mm size as initial identification points,
then compare the complete equipment model and removed cartridge before confirming the replacement.
01. Record the Full Model
Send the complete Flygt pump or mixer model, including the numerical suffix and a clear nameplate photograph.
02. Check the Seal Reference
Record FS-20, 7699430 or any other reference visible on the original seal, packaging or service information.
03. Measure the Cartridge
Confirm the 20 mm nominal size together with cartridge outside dimensions, installation length and key locating features.
04. Confirm Materials & Service
Compare the existing seal-face and elastomer materials and provide the pumped medium, solids, temperature and operating conditions.
Pump or Mixer? Record the Equipment Type
Flygt 2610, 2620, 2630 and 2640 belong to the 2600-series dewatering pump range,
while 4610 and 4620 are compact mixer models. Because the same replacement reference
can appear across different equipment types, always provide the complete equipment model
rather than describing the unit only as a “Flygt pump.”
Company Profile
Dongguan Hongteng Seals Co., Ltd. Company was established in 1996. The company has passed the GB/T19001-2016 idt ISO9001:2015 quality management system certification. The company has world-renowned pump mechanical seals, axe mechanical seals, fluid mechanical seals, metal bellows mechanical seals, container mechanical seals, rubber bellows mechanical seals, O-ring seals, PTFE mechanical seals, stainless steel oil seals, skeleton oil seals, hydraulic oil seals, automotive water seals and various mechanical seal materials, hard alloys, silicon carbide, carbon graphite, alumina, etc. There are Guangzhou Port, Shenzhen Port, and Foshan Port in the surrounding area, with developed and efficient logistics. The company has a stock warehouse of over 2000 square meters, which can efficiently and quickly deliver goods.
Production of Workshop
Exhibiton
Packing And Shipping
Customer Reviews
frequently asked questions
01. Q: Are you a factory or a trader?
A: We are a production factory and also sell on our own
02. Q: Where is your factory located?
A: Our factory is located in Dongguan City, and the nearest ports are Guangzhou Port and Shenzhen Port. Other ports can also be selected according to customer needs
03. Q: What is your delivery time in days?
A: For products in stock, we can ship immediately when receive the payment; For other projects, we need 10-25 days for mass production
04. Q: Do you provide free samples?
A: We usually do not provide free samples, and the sample fee can be deducted after the second order
05. Question: What is the most commonly used mode of transportation
A: The weight and size of mechanical seals are relatively small, and air freight, sea freight, and express delivery are usually the preferred transportation methods for customers.
06. Q:What payment methods do you accept?
A: For products in stock, 100% advance payment is required and immediate shipment will be made upon receipt of payment. For customized products, a 30% advance payment and a 70% payment must be made before the order is shipped. We accept T/T, Western Union, and also welcome customers to make payments through Alibaba
07. Q: Can you provide me with customized production
A: Yes, we can customize products and welcome OEM
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