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Rotary seal Tortef TW
elastomerNBRgraphite

Rotary seal - Tortef TW - ULMAN Dichtungstechnik GmbH - elastomer / NBR / graphite
Rotary seal - Tortef TW - ULMAN Dichtungstechnik GmbH - elastomer / NBR / graphite
Rotary seal - Tortef TW - ULMAN Dichtungstechnik GmbH - elastomer / NBR / graphite - image - 2
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Characteristics

Type
rotary
Material
elastomer, NBR, graphite, FKM
Configuration
circular
Other characteristics
dynamic, double-acting, high-pressure
Temperature limit

Min.: -30 °C
(-22 °F)

Max.: 200 °C
(392 °F)

Pressure limit

Min.: 0 MPa

Max.: 30 MPa

Speed

Min.: 0 m/s
(0 ft/s)

Max.: 2 m/s
(6.6 ft/s)

Description

Product overview
The Tortef TW is an internal, double-acting sealing element consisting of a PTFE sealing ring and an elastomer O-ring as preload. It is designed for swiveling movements under high pressures and for relatively slow rotating movements. Typical applications include tooling machines, swivel motors, axes and shafts subjected to combined rotating and swiveling motions. The PTFE compound can be filled with bronze or carbon graphite to improve compressive strength. O-rings are available in various materials.

Fields of application
  • static
  • dynamic
  • single acting
  • double acting
  • linear
  • rotating
  • oscillating

Main use
Rotary sealing (internal sealing) for rotary transmissions and swivel drives operating under high pressures.

Materials
  • PTFE
  • PTFE with filler (e.g. bronze or carbon graphite)
  • Elastomers (O-ring preload)
  • O-ring materials: NBR, FKM and others on request

Technical values
Material examples: NBR, FKM.
  • Variant (NBR): Pressure up to 30 MPa; Temperature range -30°C to +100°C (material dependent); Speed up to 2 m/s.
  • Variant (FKM): Pressure up to 30 MPa; Temperature range -20°C to +200°C (material dependent); Speed up to 2 m/s.

Note
Maximum values for temperature, speed and pressure are not simultaneously applicable and vary depending on material and media.

Catalogs

No catalogs are available for this product.

See all of ULMAN Dichtungstechnik GmbH‘s catalogs

Exhibitions

Meet this supplier at the following exhibition(s):

Motek Messe Stuttgart
Motek Messe Stuttgart

6-08 Oct 2026 Stuttgart (Germany) Hall 4 - Stand 4420

  • More information
    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.