PTFE ROTARY LIP SEALS
UltraLip PTFE seals are formed or machined from highly wear resistant PTFE/Teflon composites for long life, low friction, high surface speeds, poorly lubricated conditions and soft shafts. Available with metal backing or o-ring on the seal OD for support and to prevent seal rotation. A variety of seal profiles provide the designer with significant improvement in performance over elastomeric seals at a much lower cost than mechanical face seals.
Features and Advantages:
- Temperature Range: -20 C to + 250 C
- Pressures up to 30 bar
- Excellent chemical resistance
- Ultra low friction
- Dry running or abrasive media
- Surface speeds up to 25 m/s
- Easy to install and replace
- Metal support for higher temperatures
Type M50: Shaft speed up to 25m/s. Maximum pressure = 5 bar. Used in lubricated and non lubricated applications. Maximum temperature 100ºC.
Type M51: As type M50 but due to the metal support ring can be used up to 200ºC or maximum O-ring material temperature.
Type M52: Improved sealing of gases and abrasive media due to higher lip load. Not recommended for shaft speeds greater than 8m/s.
Type M53: As type M52 but can be used up to 200ºC or maximum O-ring material temperature due to metal support ring.
Type M54: Incorporates spring loading for use in applications where shaft run-out or misalignment exists. Pressures up to 3 bar. Speed up to 7m/s.
Type M55: As type M54 but can be used up to 200ºC or maximum O-ring material temperature due to metal support ring.
Type M56: Shaft speed up to 30m/s. Maximum pressure 1.5 bar. Low friction seal, used as environmental seals.
Type M57: As type M56 but can be used up to 200ºC or maximum O-ring material temperature due to metal support ring.
Type M58: Used in high pressure hydraulic applications - pumps, hydraulic motors. Operational PV factor bar m/s max.
Type M59: As type M58 but the clamping is in the axial direction which requires the gland width to be held to the seal width -0.0/+0.1