Rotary sealing set Praedifa series RS

Артикул

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Бренд

Parker

Цена

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Описание

Краткое описание: Rotary seal for rotary distributors. Dynamic function on inner diameter. Double-acting. For highest-pressure applications. ISO 7425.
Тип термического применения: High Temperature (
Рабочая среда: Hydraulic
Опции полимерных материалов: NBR (Nitrile-Butadiene), FKM (Fluorcarbon), HNBR (Hydrogenated Nitrile-Butadiene)
Максимальное рабочее давление: 500 bar
Минимальная рабочая температура: -50 to -10 °C
Максимальная рабочая температура: 100 °C
Максимальная окружная скорость: 0.5 m/sec
Единица измерения: Length: mm
Механизм амортизатора: No
Номинальное давление: Extremely High Pressure (> 500 bar) bar
The profile RS rotary sealing set consists of a high-strength thermoplastic slide ring with particularly stable thermic properties and an elastomer expander ring. The special contact surface geometry at the inner diameter of the slide ring with the patented (EP 0 643 243 B2) altering pitch has a major benefical effect on the lubrication of the seal. This impacts positively on both friction resistance and wear. The expander ring responsible for the static sealing function has a rectangular cross-section. Compared to O-Rings, this has advantages with regard to contact load (sealing) and deformation behavior (pumping inside the groove). The dynamic interior sealing method is preferable. We do not recommend a dynamic exterior sealing arrangement. The slide ring compound used and its geometry allow use of the seal even under maximum permissible pressure (and in case of pressure peaks) without requiring additional anti-extrusion rings. At the same time, it is possible to take maximum advantage of the diameter play between rotor and stator without any functional impairment. In principle, the seal can also be used as a final exterior sealing device. In case of doubt, however, we recommend the use of our profiles C5 or C9.

• Enhanced sealing performance in non-pressurized conditions.
• Robust seal profile for harshest operating conditions.
• Extreme wear resistance.
• Long service life thanks to application-optimized compounds.
• Insensitive to pressure peaks.
• Improved lubrication due to pressure medium deposit in the dynamic contact area.
• Extremely high extrusion resistance.
• Installation in closed and undercut housings.

Range of application
Primarily for alternating sealing of rotary applications in rotating tracks, pivot drives, hose reels, and in machine tool hydraulics.