Flygt Cartridge Mechanical Seal 45mm Plug In Seals For Pump 3171,4650,4660,5100
The Flygt 45mm Plug-in cartridge mechanical seal is a precision-engineered double-seal unit designed as a direct OEM replacement for Flygt submersible pumps with 45mm shafts, including models 3171, 4650, 4660, and the 5100 series (e.g., 5100.250, 5100.251, 5100.260, 5100.261). This pre-assembled cartridge features a robust Tungsten Carbide (TC) vs. TC face combination and Viton (FKM) elastomers housed in a corrosion-resistant stainless steel frame. Engineered for demanding wastewater, sewage, and abrasive slurry applications, it offers exact dimensional interchangeability (cross-referencing OEM part 6196430) and simplifies maintenance with its drop-in plug-in design, ensuring reliable motor protection and extended pump service life.
Key Features
• Exact Plug-in Fit for 45mm Shafts: Precision-machined to match the exact dimensions and locking mechanism of original Flygt 45mm cartridge seals. Ensures a direct drop-in replacement for models 3171, 4650, 4660, and 5100 series without any pump modification.
• Chemical Compatibility: When paired with FKM (Viton®) bellows, this seal handles industrial effluents containing chemicals that would degrade NBR seals.
• Thermal Conductivity: SiC runs cooler than Tungsten Carbide, making it a good choice for pumps that might run warm or have marginal cooling.
• Sintered SiC: We use high-grade Sintered Alpha SiC for maximum hardness and chemical inertness, superior to reaction-bonded grades in acidic media.
• Grip-Loc Compatibility: Engineered to match the specific installation dimensions of modern "Griploc" style seals used in Flygt N-pumps.
Technical Specs | Materials | ||
Mediums | Water, oil and weakly-corrosive mediums | Stationary Ring | Ceramic/Sic/TC |
Pressure | ≤1.4MPa | Rotary Ring | Carbon/Sic/TC |
Temperature | -20℃ to 120℃ | Secondary Seal | NBR/EPDM/Viton |
Speed | ≤15m/s | Spring and Metal Part | Stainless Steel |
Product Specifications
| D1 (inch) | Size Code | D1 (mm) | Size Code | D3 | D7 | L1 | L4 |
| 0.500 | 0127 | 12 | 0120 | 30.14 | 25.40 | 20.64 | 7.93 |
| 14 | 0140 | 33.32 | 31.75 | 22.23 | 10.30 | ||
| 0.625 | 0158 | 16 | 0160 | 33.32 | 31.75 | 22.23 | 10.30 |
| 0.750 | 0191 | 18 | 0180 | 36.50 | 34.93 | 22.23 | 10.30 |
| 20 | 0200 | 39.67 | 38.10 | 23.80 | 10.30 | ||
| 0.875 | 0222 | 22 | 0220 | 39.67 | 38.10 | 23.80 | 10.30 |
| 24 | 0240 | 45.50 | 41.28 | 25.40 | 11.10 | ||
| 1.000 | 0254 | 25 | 0250 | 45.50 | 41.28 | 25.40 | 11.10 |
| 1.125 | 0286 | 28 | 0280 | 48.50 | 44.44 | 26.97 | 11.10 |
| 30 | 0300 | 52.37 | 47.63 | 26.97 | 11.10 | ||
| 1.250 | 0317 | 32 | 0320 | 52.37 | 47.63 | 26.97 | 11.10 |
| 33 | 0330 | 56.00 | 50.80 | 28.58 | 11.10 | ||
| 1.375 | 0349 | 35 | 0350 | 56.00 | 50.80 | 28.58 | 11.10 |
| 1.500 | 0381 | 38 | 0380 | 59.20 | 53.98 | 28.58 | 11.10 |
| 1.625 | 0412 | 40 | 0400 | 67.00 | 60.33 | 34.93 | 12.70 |
| 43 | 0430 | 69.85 | 63.50 | 34.93 | 12.70 | ||
| 1.750 | 0444 | 45 | 0450 | 69.85 | 63.50 | 34.93 | 12.70 |
| 1.875 | 0476 | 48 | 0480 | 73.03 | 66.68 | 38.10 | 12.70 |
| 2.000 | 0508 | 50 | 0500 | 76.20 | 69.85 | 38.10 | 12.70 |
| 2.125 | 0539 | 53 | 0530 | 82.55 | 76.20 | 42.85 | 14.28 |
| 2.250 | 0571 | 55 | 0550 | 85.73 | 79.38 | 42.85 | 14.28 |
| 2.375 | 0603 | 60 | 0600 | 88.90 | 82.55 | 46.02 | 14.28 |
| 2.500 | 0635 | 63 | 0630 | 92.08 | 85.73 | 46.02 | 14.28 |
| 2.625 | 0666 | 65 | 0650 | 98.43 | 85.73 | 49.20 | 15.90 |
| 2.750 | 0698 | 70 | 0700 | 101.60 | 88.90 | 49.20 | 15.90 |
| 2.875 | 0730 | 73 | 0730 | 104.78 | 95.25 | 52.37 | 15.90 |
| 3.000 | 0762 | 75 | 0750 | 107.95 | 98.43 | 52.37 | 15.90 |
Workshop
This workshop is equipped with professional processing equipment and integrated with standardized material warehousing management, enabling a one-stop production process from precision machining to finished product delivery. It ensures part machining accuracy and production efficiency, meeting various high-specification manufacturing requirements.
Product Research, Development and Testing
Our Product R&D and Testing focuses on optimizing seal performance through advanced simulation and material analysis. All seals undergo rigorous trials, including thermal cycling and pressure tests, to ensure durability, minimal leakage, and long service life in demanding industrial environments.
Industry Solutions
Case Study
Industrial Laundry Sump: A sump pump handling hot, soapy, gritty water failed frequently. We supplied this SiC/FKM seal. The FKM withstood the heat/chemicals, and SiC resisted the grit, solving the chronic failure.
Testimonials
This is our standard upgrade for industrial customers. It turns a sewage pump into a light chemical pump.
—Industrial Pump Distributor, UK
FAQs
Q: Is this seal a direct replacement for my Flygt 3171, 4650, 4660, or 5100 pump?
A: Yes, this 45mm Plug-in cartridge seal is designed as a direct form-fit-function replacement for Flygt pumps with 45mm shafts, including 3171, 4650, 4660, and 5100.250/.251/.260/.261 series. It cross-references to common OEM part numbers like 6196430 and matches the original shaft diameter and cartridge length.
Q: How do I install the 45mm Plug-in seal correctly?
A: The Plug-in design is pre-set at the factory. Installation is simple: clean the 45mm shaft/sleeve, slide the cartridge onto the shaft, and secure it with the locking mechanism (varies by pump vintage). No special tools or face compression measurements are needed, making it ideal for field service.
Q: What are the operating limits for pressure and temperature?
A: Standard 45mm Plug-in seals for these Flygt models are rated for pressures up to 1.0 - 1.5 MPa (10-15 bar) and a temperature range of -20°C to +150°C (with standard Viton). For higher temperatures (up to 180°C), high-temperature elastomers can be specified
Our company is specialized in the production of sealing materials, mechanical seals , cartridge seals.
E-mail: gechacha@aliyun.com
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