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


Elastomer Bellows Mechanical Seal

TGXB is unbalanced,singal face, elastomer bellows structure mechanical seal. It is ideal for using in hot water pumps and other rotating equipment.TNG Type XB is quite easy to installation and seal structure is simple.

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Products Details

  With full enclosed  elastomer bellows design

  Single seal and single spring


Recommended Applications

  Hot water pumps

  Other Rotating Equipment

Operating range
Shaft diameter: d1=25.....35mm
Pressure: p=0...0.4Mpa(58 psi)
Temperature: t = -20 °C ..+150 °C(-4°F to 302°F)

Sliding velocity: Vg≤3000m/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 
    Hot-pressing carbon Ac
    Silicon carbide (RBSIC) O
 Auxiliary Seal    
    Nitrile-Butadiene-Rubber (NBR) P

    Fluorocarbon-Rubber (Viton) V

    Ethylene-Propylene-Diene (EPDM) E

    Stainless Steel (SUS304) F
 Metal Parts
    Stainless Steel (SUS304) F
Stationary Seat
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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.