Spring–energized PTFE 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
		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
		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
		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
		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
		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
		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
		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
		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

		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
		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
		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
		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