O-ring Pusher seals use a sliding secondary seal and in this design the O-ring is pushed along the outside diameter of the equipment shaft or sleeve. The O-ring retains the sealed liquid and follows along the shaft to compensate for face wear.


Product variants


EagleBurgmann M3N(G4/G13seat)series Replacement

TG120B is conical spring and O-ring pusher construction mechanical seals,designed for large batch production. This type of mechanical seal is easy to install. covers a wide range of applications and reliable performance. It is frequently used in paper industry,sugar industry, chemical and petroleum, food processing, sewage treatment industry.

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Products Details
  Conical spring,unbalanced,O-ring pusher construction   
  Torque transmission via conical spring,  independent of direction of rotation.
  Wide option in seal face material 。
  Spring with deep coils to reduce the risk of clogging in solids content or viscous liquids.
Recommended Applications
  Paper and sugar industry,Food Processing,waste  water technology
  Low solids content or viscous media
  Sewage pumps, chemical pumps, screw pumps, process pumps
  Other Rotating Equipment.
Operating range

Shaft diameter: d1=12...80mm
Pressure: p=0...1.0Mpa(145psi)
Temperature: t = -20 °C ...180 °C(-4°F to 356°F)
Sliding velocity: Vg≤15m/s(49.2ft/m)

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

Product Structure
Combination Materials

  Rotary Face

     Silicon carbide (RBSIC) O
     Tungsten carbide W1
     Cr-Ni-Mo Sreel (SUS316) G
     Surface hardfacingtungsten carbide I
 Stationary Seat 
     Carbon graphite resin impregnated Ak
     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
     Left rotation: L Right rotation: R
 Metal Parts
     Stainless Steel (SUS304) F
     Stainless Steel (SUS316) G

Stationary Seat

Standard Stationary Seat T3G4

T3G4 equivalent to Burgmann G4

Alternatives Stationary Seat T15G4   T8G13

T15G4 equivalent to Burgmann G4
T8G13 equivalent to Burgmann G13

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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.