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TG8U

TG8U

John Crane Type8-1 Replacement
Mutil-Spring,
O-ring pusher seal type 8U is the Rugged
mechanical seals.
Used in the different media conditions
due to
extend material options. It is widely used in
the general
industrial applications.
Detail Information
Features
  Mutil-Spring, Unbalanced, O-ring pusher.
  Rotary seat with a snap ring holds all parts together in a unitised design which eases installation and removal
  Torque transmission by set screws
  Conform with  EN12756 standard
Recommended Applications
  Chemical industry
  Industry pumps 
  Process Pumps
  Oil refining and petrochemical industry 
  Other Rotating Equipment
Operating range
Shaft diameter: d1=18...100mm(0.750'' ...4.000'')
Pressure:  p=0...2.0Mpa(290psi)
Temperature: t = -40 °C ...200 °C(-40°F to 392°F)
Sliding velocity: Vg≤25m/s(82ft/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
    Tungsten carbide W1
    Carbon graphite resin impregnated Ak
 2. Stationary Seat 
    99% Aluminium Oxide B1
    Silicon carbide (RBSIC) O
    Tungsten carbide W1
 3. Auxiliary Seal 
    Fluorocarbon-Rubber (Viton) V
    Ethylene-Propylene-Diene (EPDM) E
    PTFE Enwrap Viton M1
 4. Spring 
    Stainless Steel (SUS304) F
    Stainless Steel (SUS316) G
 5. Metal Parts
    Stainless Steel (SUS304) F
    Stainless Steel (SUS316) G
Stationary Seat
Standard Stationary Seat:  T6WG 
T6WG equivalent to John Crane WG  
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