Piston Seal XSPS35
Function:
Piston seals are designed to seal the pressurized hydraulic fluid against the atmosphere or between two pressurized spaces.
Features:- Asymmetrical, double acting compact piston seal, designed with interference on the ID which provides a good static fit in the groove.
- Excellent static and dynamic sealing performance.
- Excellent performance in low pressure conditions.
- For rotary applications the interference on the ID has to be increased (better static fit to reduce the danger of the seal rotating in the housing), the preload has to be reduced (lower friction).
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Seal housing recommandation
Tolerances | [mm]  |   |
---|
L < 10 mm
| + 0,2 | |
L ≥ 10 mm
| + 0,3 | |
∅ NA
| H9 | |
∅ NI
| h10 | |
|
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Surface roughness | Rtmax [ µ]  | Ra [ µ]  |
---|
Bottom of groove
| ≤ 6,3 | ≤ 1,6 |
Face of groove
| ≤ 15 | ≤ 3 |
|
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Sliding surface | Rtmax [ µ]  | Ra [ µ]  |
---|
PU, elastormeres
| ≤ 2,5 | ≤ 0,1 - 0,5 |
PTFE
| ≤ 2 | ≤ 0,05 - 0,3 |