• Brazed Face Technology: For metal bellow versions, the TC face is vacuum brazed to the bellow holder, ensuring a bond that withstands high torque and shock loads.
• Optimized Face Geometry: Designed to maintain lubrication even in slurry, preventing dry-running damage during snoring conditions.
Key Features
• Maximum Abrasion Resistance: Solid Tungsten Carbide faces resist scoring and wear from sand and grit better than any other material.
• Rugged Bellow Design: The elastomer or metal bellow (depending on model) protects the shaft and provides flexibility to handle shaft deflection during heavy loads.
• OEM Compatibility: Available as direct replacements for Flygt Plug-in and Cartridge seals used in the 2000, 3000, and 5000 series pumps.
Technical Specs | Materials | ||
Mediums | Chemical, Food, Oil, Petroleum, Pharmaceuticals Paper and pulp, Sewage treatment | Stationary Ring | Carbon/Sic/Ssic/TC |
Temperature | Elastomer Dependent | Rotary Ring | Sic/Ssic/TC |
Pressure | ≤2.8MPa | Secondary Seal | Viton/EPDM/Chemraz/Kalrez/Aflas, etc |
Speed | ≤35m/s | Spring and Metal Part | Stainless Steel/Hast C |


Product Specifications
| D1 (mm) | D2 | D3 | D5 | L1 | L2 | L3 | L5 |
| 25 | 44.5 | 104 | 12.5 | 35 | 54 | 24 | 62 |
| 28 | 47.5 | 104 | 12.5 | 35 | 54 | 24 | 62 |
| 30 | 49.5 | 104 | 12.5 | 35 | 54 | 24 | 67 |
| 32 | 51.5 | 104 | 12.5 | 35 | 54 | 24 | 67 |
| 33 | 51.5 | 104 | 12.5 | 35 | 54 | 24 | 67 |
| 35 | 54.5 | 110 | 12.5 | 35 | 54 | 24 | 70 |
| 38 | 57.5 | 125 | 14.7 | 35 | 54 | 24 | 75 |
| 40 | 59.5 | 125 | 14.7 | 35 | 54 | 24 | 75 |
| 42 | 61.5 | 133 | 14.7 | 35 | 54 | 24 | 80 |
| 43 | 62.5 | 133 | 14.7 | 35 | 54 | 24 | 80 |
| 45 | 64.5 | 140 | 14.7 | 35 | 54 | 24 | 82 |
| 48 | 67.5 | 140 | 14.7 | 35 | 54 | 24 | 82 |
| 50 | 69.5 | 140 | 14.7 | 35 | 54 | 24 | 87 |
| 53 | 72.5 | 150 | 17.5 | 35 | 54 | 24 | 92 |
| 55 | 74.5 | 150 | 17.5 | 35 | 54 | 24 | 92 |
| 60 | 79.5 | 160 | 17.5 | 35 | 54 | 24 | 100 |
| 65 | 84.5 | 165 | 17.5 | 35 | 54 | 24 | 105 |
| 70 | 89.5 | 180 | 17.5 | 35 | 54 | 24 | 120 |
| 75 | 102 | 190 | 17.5 | 39 | 58 | 26 | 125 |
| 80 | 107 | 190 | 17.5 | 39 | 58 | 26 | 130 |
| 85 | 112 | 220 | 21.5 | 39 | 58 | 26 | 135 |
| 90 | 117 | 220 | 21.5 | 39 | 58 | 26 | 140 |
| 95 | 122 | 220 | 21.5 | 39 | 58 | 26 | 145 |
| 100 | 127 | 220 | 21.5 | 39 | 58 | 26 | 150 |
| D1 (inch) | D2 | D3 | D5 | L1 | L2 | L3 | L5 |
| 1.000 | 1.752 | 4.094 | 0.492 | 1.378 | 2.126 | 0.984 | 2.441 |
| 1.125 | 1.870 | 4.094 | 0.492 | 1.378 | 2.126 | 0.984 | 2.441 |
| 1.250 | 2.027 | 4.094 | 0.492 | 1.378 | 2.126 | 0.984 | 2.638 |
| 1.375 | 2.146 | 4.331 | 0.492 | 1.378 | 2.126 | 0.984 | 2.756 |
| 1.500 | 2.264 | 4.921 | 0.579 | 1.378 | 2.126 | 0.984 | 2.953 |
| 1.625 | 2.421 | 5.236 | 0.579 | 1.378 | 2.126 | 0.984 | 3.150 |
| 1.750 | 2.539 | 5.512 | 0.579 | 1.378 | 2.126 | 0.984 | 3.228 |
| 1.875 | 2.657 | 5.512 | 0.579 | 1.378 | 2.126 | 0.984 | 3.228 |
| 2.000 | 2.736 | 5.906 | 0.579 | 1.378 | 2.126 | 0.984 | 3.425 |
| 2.125 | 2.854 | 6.102 | 0.689 | 1.378 | 2.126 | 0.984 | 3.622 |
| 2.250 | 3.051 | 6.299 | 0.689 | 1.378 | 2.126 | 0.984 | 3.937 |
| 2.375 | 3.130 | 6.469 | 0.689 | 1.378 | 2.126 | 0.984 | 3.937 |
| 2.500 | 3.248 | 6.693 | 0.689 | 1.378 | 2.126 | 0.984 | 4.055 |
| 2.625 | 3.445 | 7.067 | 0.689 | 1.378 | 2.126 | 0.984 | 4.724 |
| 2.750 | 3.523 | 7.480 | 0.689 | 1.378 | 2.126 | 0.984 | 4.724 |
| 2.875 | 3.937 | 7.480 | 0.689 | 1.535 | 2.283 | 1.181 | 4.843 |
| 3.000 | 4.016 | 7.480 | 0.689 | 1.535 | 2.283 | 1.181 | 4.921 |
| 3.125 | 4.213 | 8.661 | 0.689 | 1.535 | 2.283 | 1.181 | 5.118 |
| 3.250 | 4.331 | 8.661 | 0.846 | 1.535 | 2.283 | 1.181 | 5.236 |
| 3.375 | 4.410 | 8.661 | 0.846 | 1.535 | 2.283 | 1.181 | 5.315 |
| 3.500 | 4.607 | 8.661 | 0.846 | 1.535 | 2.283 | 1.181 | 5.512 |
| 3.625 | 4.685 | 8.661 | 0.846 | 1.535 | 2.283 | 1.181 | 5.591 |
| 3.750 | 4.804 | 8.661 | 0.846 | 1.535 | 2.283 | 1.181 | 5.709 |
| 3.875 | 5.000 | 8.661 | 0.846 | 1.535 | 2.283 | 1.181 | 5.906 |
| 4.000 | 5.000 | 8.661 | 0.846 | 1.535 | 2.283 | 1.181 | 5.906 |
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
Construction Dewatering: Pumps failed every 2 weeks from sand. TC Bellow seals lasted entire 6-month project.
Testimonials
These are the only seals we use for our rental fleet. They take a beating in the mud and sand and keep sealing.
—Fleet Manager, Pump Rental Company
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Which Flygt pump series use this seal?
A: This seal is primarily used in the Flygt 2600 (dewatering), 3153, and 3171 (slurry) series pumps. It is designed to handle the heavy vibration and abrasive media typical of these pump applications.

Our company is specialized in the production of sealing materials, mechanical seals , cartridge seals.
E-mail: gechacha@aliyun.com
Mobile: +86-18758835650
WhatsApp: +86-18758835650
Add: No8-2, Jinsha road Yuelin Street, Fenghua District, Ningbo, Zhejiang