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TG685

TG685

EagleBurgmann Type MFL85N 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
  Bellows not only used as elastic component, but also has good torque transmission effect
  No dynamically loaded O-Ring
  Dimensional data conform with DIN24960 standard
Recommended Applications
Refining technology, Oil and gas industry
Process industry
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 ...220 °C(-4°F to 428°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 
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
Alternatives Stationary Seat: T4G9
T4G9 equivalent to Burgmann G9 
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