Turcon® VL Seal®

Turcon® VL Seal®

  • Tight leakage control
  • Hydrodynamic back pumping effect maximizes leakage control
  • Avoids the trapping of pressure between tandem seals or between seals and scrapers
  • Low friction due to a reduced contact area between seal and mating surface
  • Continuously lubricated
  • Long service life
  • Simple design
  • Uses standard size O-Ring as an energizer

Turcon® VL Seal® with O-Ring

The Turcon® VL Seal® was developed as the next generation unidirectional rod seal. The sealing mechanism of Turcon® VL Seal® is based on the hydrodynamic properties of the seal. The specially formed seal edge has a steep contact pressure gradient on the high-pressure side and a shallow contact pressure gradient on the low-pressure side. This ensures that the fluid film adhering to the piston rod is returned to the high-pressure chamber on the return stroke of the rod. The micro-fluid layer that is carried out of the high-pressure chamber when the piston rod is extended is therefore prevented from causing leaks.

Turcon® VL Seal®

Important to the function of the Turcon® VL Seal® is the Trelleborg Sealing Solutions back pumping effect. This prevents pressure from being trapped between tandem seals or between seals and double-acting scrapers.

The return delivery property of the Turcon® VL Seal® prevents the build-up of the inter-stage pressure that is normally associated with tandem seal configurations. Inter-stage pressure depends on system pressure speed, stroke length and groove design.

The presence of hydraulic oil around the seal ensures a very long service life, as the seal will always be adequately lubricated.Turcon® VL Seal®

Typical Oil & Gas Applications Include:

Technical Data
Operating Pressure5,800 psi / 60 MPa
(10,000 psi / 69 MPa with Zurcon® Back-up Ring)
SpeedUp to 50 ft/s / 15.0 m/s with reciprocating movements
Temperature Range-54 °C to +260 °C /
-65 °F to +500 °F
Dependent on elastomer
MediaMineral oil-based hydraulic fluids, flame-retardant hydraulic fluids, environmentally-safe hydraulic fluids (bio-oils), water and others, depending on the elastomer material

Local Contact

To speak to a local oil & gas specialist, call the number listed for your region:

+1 713 461 3495

+65 6577 1778

+44 (0)1224 355345

Contact us

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