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Single Outside PTFE Bellows Component Seal


Features &


  • Outside design for highly corrosive media

  • No metallic parts contact fluid

  • Bellows design helps compensate for face wear

  • Clamp to shaft design eliminates need for direct set screw drive on shaft

  • No vapor corrosion

  • Multiple Springs out of the product but enhance face loading

  • Eliminates O-rings

  • Easy Installation

  • Replaces John Crane® Type 20

Standard Materials of Construction


  • Carbon Graphite (Resin Impregnated), Silicon Carbide, PTFE, Ceramic

Seal Body:

  • PTFE ( Teflon)

  • Clamp Metallurgy (Non Contacting): 316, Monel, Hastelloy-C , Alloy 20

Operating Limits

  • Pressure: 120 psi / 8.3 Bar

  • Temperature: -40°F to +248°F / -40°C to +120°C.

TB drawing
TB dimensions

Note: Customized "T" clamp seats always available 

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