TNG® Offering the widest range of standard mechanical seal from any compnay anywhere.
Categories
- Conical Spring Mechanical Seals
- Parallel Spring mechanical Seals
- Multiple Spring mechanical Seals
- Wave Spring Mechanical Seal
- Metal Bellows mechanical seal
- Cartridge mechanical seal
- PTFE-Bellows Seal
- Parallel Spring Diaphragm Mechanical Seal
- Elastomeric Bellows mechanical seal
- Brand Pump Seals-General Industrial
- Brand Pump Seals-Food and Beverage Industry
- Stationary seat Type
TG680
TG680 Seres mechanical seal featurng welded metal bellowsstatic seal,The bellows adopts advanced welding technology.45°C wave design, which makes the stress distribution morereasonable and flexibility, to ensure seals has advantages of reliable sealing and good matching property. The Type 680incorporates drive lugs under the bellows that provide addedrotational drve, This reduces torsional stress on the bellowsand makes the Type 680 the ideal seal for maximum reliability and and extended life in viscous or high-temperature applications.The seal has excellent dynamic
Detail Information
Features
Drive lugs
Welded metal bellows
Bi-dire ctional
Balanced
Flexible graphite auxiliary seal
Available with DOUBLE-PLY Bellows
TG680 seal, equivalent to Type MFL WT80
Recommended Applications
Refining technology, Oil and gas industry
Extreme ranges of temperature and high-viscosity media
Pumps
Special Rotating Equipment.
Operating range
Shaft diameter: d1=16...100mm
Pressure: p=0...2.5Mpa（362.5psi）
Temperature: t = -75 °C ...400 °C(-103°F to 752°F)-TG680M
t = -40 °C ...290 °C(-40°F to 554°F)-TG680C
t = -20 °C ...200 °C(-4°F to 428°F)-TG680T
Sliding velocity: Vg≤25m/s（or Vg≤5,000rpm）（82ft/m）
Notes: The range of preesure,temperature and sliding velocity is depend on seals combination materials
Product Structure
Combination Materials
1.BELLOWS
AM350 T8 Hastelloy C-276 M5 inconel 718 M6
2.SEAL FACE
Carbon graphite AD Sintered Silicon O1 Sintered Silicon O1
antimony impreg Carbide SSlC Carbide SSIC
3.AUXILIARY SEAL
Flexible Graphite G Flexible Graphite G Flexible Graphite G
4.ROTARY HEAD
All0y 42 T4 Hastelloy C-276 M5 All0y 42 T4
5.METAL PATRTS
CrNiMo-steel G Hastelloy C-276 M5 All0y 625 T3
6.APPLICATION
Mildly corrosive medium Corrosive medium Corrosive medium
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