Type 10T and 10R both use PTFE bellows, and are designed for external mounting on extremely corrosive duties including acids, salts and organic compounds.


Product variants


PTFE Bellows mechanical seal

A complete externally mounted PTFE bellows mechanical seals Type TGWB2 is designed for extreme corrosion resistance applications, such as high concentrations of acids, salts, strong oxidizing and reducing agents and chemically active organic compounds.

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Products Details
  PTFE bellows seals 
  Externally mounted,Independent of direction of rotation.
  With spring protective sleeve.
Recommended Applications
  Chemical and organic compounds industry 
  Extreme corrosion resistance media 
  Anticorrosive Pumps
  Other Rotating Equipment.
Operating range

Shaft diameter: d1=18...100mm(0.750'' ...4.000'')
Pressure:  p=0...0.8Mpa(116psi)
Temperature: t = -20 °C ...120 °C(-4°F to 248°F)
Sliding velocity:  Vg≤13m/s(42.6ft/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
    Carbon graphite resin impregnated Ak
    Glass Filled PTFE Y
 Stationary Seat
    Silicon carbide (RBSIC) O
    99%Al2O3 ceramic B1
    Composite PTFE Y1
    Stainless Steel (SUS304) F
    Stainless Steel (SUS316) 

 Metal Parts     

    Pure PTFE T

    Stainless Steel (SUS316) G
Stationary Seat

Standard Seat: T9W

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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.