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TG680W

TG680W

EagleBurgmann MFL WT80 series replacement
Welded metal bellows
mechanical seals Type TG685 is a high
parameter seal,
used in corrosive media and large friction
coefficient media.
With good floatability and random compensatory,
widely used in
petrochemical industry,sewage treatment
industry and
paper industry.
Detail Information
Features
  Welded metal bellows construction, Balanced, Independent of direction of rotation.
  Extreme  temperature Resistance due to flexible Graphite material in auxiliary Seal .
  Dimensional data conform with DIN24960 standard
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=18...100mm(0.750'' ...4.000'')
Pressure: p=0...2.5Mpa(362.5psi)
Temperature:  t = -20 °C ...400 °C(-4°F to 752°F)
Sliding velocity:   Vg≤15m/s(49.2ft/m)

Notes: The range of preesure,temperature and sliding velocity is depend on seals combination materials
Product Structure
Combination Materials
1.Rotary Face
Silicon carbide (RBSIC) O
Carbon graphite resin impregnated Ak 
Tungsten carbide W1
2.Stationary Seat
Silicon carbide (RBSIC) O
Tungsten carbide W1
3.Elastomer 
Exfoliated Graphite G
Fluorocarbon-Rubber (Viton) V
Ethylene-Propylene-Diene (EPDM) E
PTFE Enwrap Viton M1
4.Bellows  
Alloy C-276 M4
Stainless Steel (SUS316) G
AM350 Stainless Steel T6
Alloy 20 M3
5.Parts
Stainless Steel (SUS304) F
Stainless Steel (SUS316) G
4J42 T4
Stationary Seat
Standard Seat: T7G9
T4G9 equivalent to Burgmann G9  
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