Features
Welded metal bellows
Bi-directional
Balanced
0-ing auxiliary seal
Comply with APl682 requirements
Available with DOUBLE-PLY Bellows
TG669 seal, equivalent to Type 609
Recommended Applications
Refining technology, Oil and gas industry
Process industry
Pumps
Special Rotating Equipment.
Operating range
Shaft diameter: d1=1.000"...4.000"
Pressure: p=0...2.5Mpa（362.5psi）
Temperature: t = -75°C ...400 °C(-100°F to 752°F)-TG669M
t = -20 °C ...220 °C(-4°F to 428°F)-TG669T
Sliding velocity: Vg≤25m/s（or Vg≤5,000rpm)（82ft/s））
Notes: The range of preesure,temperature and sliding velocity is depend on seals combination materials
Product Structure
Combination Materials
1.BELLOWS
AM350 T8 inconel 718 M6
2.SEAL FACE
Carbon graphite AD
antimony impreg Sintered Silicon O1
Sintered Silicon O1 Carbide SSIC
Carbide SSlC
3.AUXILIARY SEAL
Flexible Graphite G Flexible Graphite G
4.ROTARY HEAD
Alloy 42 T4 All0y 42 T4
5.METAL PATRTS
CrNiMo-steel G All0y 625 T3
6.APPLICATION
Mildly corrosive medium Corrosive medium
