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


Double Face mechanical seals

Double face mechanical seal type TG208 has a high degree of interchangeability of the parts, suitable for mass production and with economical price. It is ideal for rotating Equipment on water, mud, oil media

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Products Details

  Double face、unbalanced、large spring construction

  Same features as TNG type TG108

Recommended Applications

  Submersible electric pumps, deep-well pumps

  Other Rotating Equipment

Operating range

Shaft diameter:  d1=10...45

Pressure: p=-0.05...0.16Mpa(23.2psi)

Temperature:   t = -20 °C ...80 °C(-4°F to 176°F)

Sliding velocity:  n≤3000r/min


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

Product Structure
Combination Materials

 Rotary Face 
    Carbon graphite resin impregnated Ak 
    Hot-Pressing Carbon Ac 
    Silicon carbide (RBSIC) O
    Tungsten carbide W1
 Stationary Seat 
    Aluminium oxide(Ceramic) B
    Silicon carbide (RBSIC) O
    Tungsten carbide W1

 Auxiliary Seal
    Nitrile-Butadiene-Rubber (NBR) P
    Fluorocarbon-Rubber (Viton) V
    Stainless Steel (SUS304) F
 Metal Parts
    Stainless Steel (SUS304) F

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.