Flygt Tungsten Carbide Bellow Mechanical Seal

Flygt Tungsten Carbide Bellow Mechanical Seal

• 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.

Model:320
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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


CF320-1.jpg
CF320-2.jpg



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.


Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606



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.


R&D and Design.jpg
microscope.jpg
Light band detection.jpg
pressure test.jpg



Industry Solutions


Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606




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.

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    Our company is specialized in the production of sealing materials, mechanical seals , cartridge seals.

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