Elastomer bellows mechanical seal is indentified by the use of an elastomer bellows or diaphragm for the secondary sealing member. Elatomer bellows seal units require a positive abutment at the back of the bellows or spring, positioned so as to give the correct seal working length


Product variants


John Crane Type 6A Replacement

Type TG6B is the stationary mechanical seals, good perfromance in the high-speed or vibration working condition. Widely used in the Auto industry and small industrial equipment.

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Products Details
  Good perfromance in the high-speed or vibration working condition
  Can be installed to various shaft sizes due to the clearance between the shaft and seal components
  Single-Spring, unbalanced elastomer bellows mechanical seal
Recommended Applications
  Auto industry  
  Coolant Pumps
  Swimming pool pumps
  High-speed equipment 
Operating range

Shaft diameter: d1=10...30m(0.375'' ...0.750'')
Pressure: p=0...0.3Mpa(43.5psi)
Temperature: t = -35 °C ...150 °C(-31°F to 302°F)
Speed: n≤5000m/s


Notes: The range of preesure,temperature and sliding velocity is depend on seals combination materials

Product Structure
Combination Materials

 Rotary Face
    Aluminium oxide B
    Silicon carbide (RBSIC) O             
 Stationary Seat 
    Carbon graphite resin impregnated Ak
    Hot-pressing carbon Ac
    Silicon carbide (RBSIC) O
 Auxiliary Seal   
    Nitrile-Butadiene-Rubber (NBR) P
    Fluorocarbon-Rubber (Viton) V
    Hydrogenated nitrile-butadiene rubber(H-NBR) H

    Stainless Steel (SUS304) F

    Stainless Steel (SUS316) G
 Metal Parts
    Stainless Steel (SUS304) F

    Stainless Steel (SUS316) G

Stationary Seat
WenZhou TianGu Seal Co., Ltd was founded in 1982, is located in Wenzhou City, Zhejiang Province Economic and Technological Development Zone, China Hydraulics Pneumatics & Seals Industry Association, in the mechanical seal product design, manufacturing and sales of businesses.