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Spring–energized PTFE Seals (Teflon seals)

The spring–energized PTFE Seals we manufacture are recommended for sealing in extreme operating conditions of temperature, speed and chemical. It consists of a PTFE U-shaped profile ring energized by a finger spring. The finger spring can be a stainless steel V-spring (meander spring) or canted coil spring. The Spring–energized PTFE Seal design is such that the lip will be pushed against the sealing surface at low pressure and also at high pressure. We can make this type of PTFE seal using pure PTFE, PTFE Carbon, PTFE Graphite, PTFE Bronze or PTFE Glass (see materials section). The features of these PTFE seals are :

  • very low friction and will not seize after long period of unuse when installed in a hydraulic system
  • chemical resistant
  • wide operating temperature range
  • wide operating pressure from vacuum up to 200 bar
  • operating speed up to 10 m/s
  • can be used to seal gases
  • can replace O-rings

Typical applications of Spring–energized PTFE Seals are in oil and gas valve, defence and aerospace, low temperature application, medical equipment, and sealing systems that demand extreme chemical resistant. We can also specially design it to be used for sterilization, clean-rooms and ultra-high vacuum purposes.

Spring–energized PTFE Seals for both rod and piston applications

Type    
Spring–energized PTFE Seals canted coil spring Spring–energized PTFE Seals canted coil spring Standard canted coil spring–energized PTFE Seals and a corrossion resistant coil spring installed. It is good for static, reciprocating and rotary seals applications. PTFE Seals TU1s can operate up to 200 bar while PTFE Seals TU1t, with its extended base, can operate up to 500bar.
TU1s TU1t  
Spring–energized PTFE Seals v-spring Spring–energized PTFE Seals v-spring A single-acting seal consisting of a PTFE U-profiled seal and a corrosion resistant V-spring. It is good for static, reciprocating and rotary seals application. PTFE Seals TU2s can operate up to 200 bar while PTFE Seals TU2t, with its extended base, can operate up to 500bar.
TU2s TU2t  
Spring–energized PTFE Seals v-spring Spring–energized PTFE Seals v-spring A single-acting seal consisting of a PTFE U-profiled seal, a corrosion resistant V-spring, and sharped lip profile.This type of PTFE seal is good for static, reciprocating and rotary seals applications and also for applications with abrasive medias present. PTFE Seals TU3s can operate up to 200 bar while PTFE Seals TU3t, with its extended base, can operate up to 500bar
TU3s TU3t  
Spring–energized PTFE Seals v-spring Spring–energized PTFE Seals v-spring A single-acting seal consisting of a PTFE U-profiled seal, a corrosion resistant V-spring and arounded lip. It is good for static, reciprocating and rotary seals application. PTFE Seals TU4s can operate up to 200 bar while PTFE Seals TU4t, with its extended base, can operate up to 500bar.
TU4s TU4t  

Spring–energized PTFE Seals with lips facing inside to seal internal pressure

Type    
Spring–energized PTFE Seals canted coil spring Spring–energized PTFE Seals canted coil spring Static, dynamic and low pressure seals applications with internal pressure. Canted coil spring–energized PTFE Seal TUi1s can operate up to 500 bar while PTFE Seal TUi1t, with its extended base, can operate up to 1200bar.
TUi1s TUi1t  
Spring–energized PTFE Seals v-spring Spring–energized PTFE Seals v-spring Static and dynamic seals applications with internal pressure. V-spring energized PTFE Seal TUi2s can operate up to 500 bar while PTFE Seal TUi2t, with its extended base, can operate up to 1200bar.
TUi2s TUi2t  
Spring–energized PTFE Seals v-spring Spring–energized PTFE Seals v-spring Static and dynamic seals applications with abrasive particles and with internal pressure. V-spring energized PTFE Seal TUi3s can operate up to 500 bar while PTFE Seal TUi3t, with its extended base, can operate up to 1200bar.
TUi3s TUi3t  
Spring–energized PTFE Seals v-spring Spring–energized PTFE Seals v-spring Static and dynamic seals applications with internal pressure. V-spring energized PTFE Seal TUi4s can operate up to 500 bar while PTFE Seal TUi4t, with its extended base, can operate up to 1200bar.
TUi4s TUi4t  

Spring–energized PTFE Seals with lips facing outside to seal external pressure

Spring–energized PTFE Seals canted coil spring Spring–energized PTFE Seals canted coil spring Static, dynamic and low pressure seals applications with external pressure. Canted coil spring–energized PTFE Seal TUi1s can operate up to 500 bar while PTFE Seal TUi1t, with its extended base, can operate up to 1200bar.
TUo1s TUo1t  
Spring–energized PTFE Seals v-spring Spring–energized PTFE Seals v-spring Static and dynamic seals applications with external pressure. V-spring energized PTFE Seal TUo2s can operate up to 500 bar while PTFE Seal TUo2t, with its extended base, can operate up to 1200bar.
TUo2s TUo2t  
Spring–energized PTFE Seals v-spring Spring–energized PTFE Seals v-spring Static and dynamic seals applications with abrasive particles and with external pressure. V-spring energized PTFE Seal TUo3s can operate up to 500 bar while PTFE Seal TUo3t, with its extended base, can operate up to 1200bar.
TUo3s TUo3t  
Spring–energized PTFE Seals v-spring Spring–energized PTFE Seals v-spring Static and dynamic seals applications with external pressure. V-spring energized PTFE Seal TUo4s can operate up to 500 bar while PTFE Seal TUo4t, with its extended base, can operate up to 1200bar.
TUo4s TUo4t  

 

 

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