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


O-ring pusher construction mechanical seals

Typically seals with large spring, O-ring pusher construction. Type TG1527 with easy to install, covers a wide range of applications and reliable performance characteristic. With extend combination material options,widely used in general corrosive chemical pump,Sewage pumps and industrial pumps

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Products Details
  O-ring pusher construction.
  Transmission by typical large spring,independent of direction of rotation 
  Single seal, unbalanced.
  Low risk of clogging in solids content or viscous liquids
Recommended Applications
  Petrochemical industry and sewage treatment industry
  Low solids content or viscous media
  Sewage pumps and industrial pumps and chemical pumps.
  Other Rotating Equipment.
Operating range

Shaft diameter: d1=18...100mm
Pressure:  p=0...1.0Mpa(145psi)
Temperature:  t = -40 °C ...150 °C(-40°F to 302°F)
Sliding velocity:  Vg≤10m/s(32.8ft/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
 Stationary Seat
    Silicon carbide (RBSIC) O

    Carbon graphite resin impregnated Ak

    Tungsten carbide W1
 Auxiliary Seal 
    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:T5S43

Alternatives Stationary Seat:T4S43  

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.