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TG8B-TG9B

TG8B-TG9B

John Crane Type8B-1/Type 109B Replacement
TG8B Auxiliary seal is rubber 0-ring structure
TG9B Auxiliary seal is PTFE wedge ring structure
Detail Information
Features
 Multiple Spring Design
 Ealanced SealBi-directional
 Equivalent to Type8B-1
                        Type109B
Recommended Applications
  Chemical industry
  Industry pumps 
  Process Pumps
  Oil refining and petrochemical industry 
  Other Rotating Equipment
Operating range
Shaft diameter: d1=18...100mm(1.000''...4.000'') 
Pressure: p=0..5.2Mpa(754psi)
Temperature: t = -40 °C ..+200 °C(-40°F to 392°F)(TG8B)
                      t = -29 °C ..+260 °C(-20.2°F to 500°F)(TG9B)
Sliding velocity: Vg≤25m/s(82ft/s)(5000fpm)
Notes: The range of preesure,temperature and sliding velocity is depend on seals combination materials

Product Structure
Combination Materials
 1. Rotary Face 
     Carbon graphite, resin impreg  AK
     Reaction Bonded Sic RBSlC  O
     Sintered Silicon Carbide SSlC  O1
     Tungsten Carbide.Ni-binder  W
 2. Stationary Seat 
     Reaction Bonded Sic RBSlC  O
     Sintered Silicon Carbide SSlC  O1
     Tungsten Carbide.Ni-binder  W
 3. Auxiliary Seal 
     Elastomers 0-ring(TG8B)
     Fluorocarbon Rubber FKM  V
     Etylene Propylene Rubber EPDM  E
     Perfluorocarbon Rubber FFKM  K
     PTFE wedge ring (TG9B)
     Pure PTFE  T  
 4. Spring 
     GrNiMo-Steel (AlS1316)  G
     Hastelloy C-4  M
 5. Metal Parts
     GrNi-Steel (AlS1304)  F
     GrNiMo-Steel (AlS1316)  G
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