Rotary seals

Shaft Seal

Shaft seals are active sealing components that can be used in hydraulic and pneumatic applications. These types of seals are produced in different variants and are predominantly used in dynamic and rotary movement applications. The sealing function is supported by the acting system pressure.

Varitef TR

Varitef TR is a internal single acting rotating sealing, which consists of a PTFE seal and a stainless steel spring as preload element. The spring is available in a variety of steel qualities.

Varitef TR is particularly suitable for positioniing cylinders with high pressures and relative slow rotation movements. Suitable for applications in the hydraulics and pneumatics, chemistry, food industry and pharmacy, for rotation and swiveling movements as well as back and forth motion.

The PTFE compound is filled with bronze or carbon graphite to improve the compressive strength. Further materials upon request.

fields of application
static
dynamic
single-acting
double-acting
linear
rotatory
oscillating
materials
metal, PTFE, PTFE with filling material
technical data
pressure up to 15 MPa
temperature -150°C / +225°C (material dependent)
speed up to 2 m/s
Maximum values temperature, speed and pressure are simultaneously not applicable! The values vary in dependence of material and media. For technical queries please contact our application consultants – we have the right solution for you. 

Your contact person regarding

Technical topics - general sealing applications, special designs

Do you have any questions, ideas or suggestions?

We would be happy to advise you.

Personally, by phone or in digital form.

Mr. Thomas Stegmaier
+49 (0) 7034 2518 - 240
thomas.stegmaier(a)ulman.de

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