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 type M3N(DIN24960)series Replacement

TNG type TG120C With reliable performance, wide range of applications and easy installation features. Used in the different media conditions due to extend material options. TG120C is conical spring and O-ring pusher construction mechanical seals,designed for large batch production. It is ideal for use 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.
  Dimensional data conform with DIN24960 standard
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: T4G9  T7G9

T4G9 equivalent to Burgmann G9 Material Carbon

T7G9 equivalent to Burgmann G9 Material Silicone

Alternatives Stationary Seat: T5G9   T3G6

T5G9 equivalent to Burgmann G9
T3G6 equivalent to Burgmann G6

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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.