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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

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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 A_K

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

Mechanical Seals

Pump Seals

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