The Turcon® Double Delta® is a double-acting sealing element which is energized by an elastomer O-Ring. The Turcon® Double Delta® seal can be fitted in existing O-Ring grooves (US standard AS 568 A, MIL-P-5514) and demonstrates good friction properties, stick-slip free starting and excellent dry-running. The Turcon® Double Delta® is used in light and medium-duty industrial hydraulics.
Turcon®Double Delta® is a rubber energized plastic faced seal, designed to expand and significantly improve the service parameters of O-rings. Double Delta® can be installed in existing O-ring grooves. Double Delta® combines the flexibility and responsiveness of O-rings with the wear and friction characteristics of the Turcon® materials in dynamic applications.
The double-acting performance of the seal follows from the symmetrical cross section which allows the seal to respond to pressure in both directions.
Initial contact pressure is provided by radial compression of the O-ring. When the system pressure is increased the O-ring transforms this into additional contact pressure, the contact pressure of the seal is thereby automatically adjusted so sealing is ensured under all service conditions.
Pressure: up to 35 MPa
Speed: up to 15 m/s
Temperature: -45 °C to +200 °C according to O-ring material
Media: Mineral oil-based hydraulic fluids, flame retardant hydraulic fluids, environmentally friendly hydraulic fluids (bio-oils), phosphate ester, water and others, depending on temperature, seal and O-ring material compatibility.
Clearance: The maximum permissible radial clearance Smax is shown in Table 87, as a function of the operating p