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


EagleBurgmann Type BT-AR Replacement

Mass-produced, short axial installation length and compact design elastomer bellows mechanical seal TG301 is frequently used by food and beverage industry, househpld and garden pumps, swimming pool pumps and dishwasher pump

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Products Details
  Compact structure design,short axial installation length 
  Stationary seat with wide face design,offers maximum durability and performance 
  Insensitive to shaft play and run out due to special bellows arrangement
  Can also be used as double face mechanical seals in two sets arrangement
Recommended Applications
  Water and waste water technology
  Food and beverage industry
  Househpld and garden pumps
  Swimming pool pumps
  Other Rotating Equipment
Operating range

Shaft diameter: d1=6...70 mm 
Pressure: p=0...0.4Mpa(58 psi)
Temperature: t = -20 °C ..+150 °C(-4°F to 302°F)
Sliding velocity: Vg≤10m/s(32.8ft/s)


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 
    Silicon carbide (RBSIC) O
    Hot-pressing carbon Ac   
 Stationary Seat 
    Aluminium oxide B
    Silicon carbide (RBSIC) O
    Tungsten carbide W1
 Auxiliary Seal  
    Nitrile-Butadiene-Rubber (NBR) P
    Fluorocarbon-Rubber (Viton) V
    Ethylene-Propylene-Diene (EPDM) E
    Stainless Steel (SUS304) F

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

    Stainless Steel (SUS316) G
Stationary Seat

Standard Stationary Seat:T1RA

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.