Symmetrical Seal XSPRS13–15
Function:
Symmetrical piston/rod seals are designed to seal the pressurized hydraulic
fluid against the atmosphere or between two pressurized spaces.
Features:- Symmetrical, single acting piston/rod seal, combined with pressure ring
and support ring. - By adjusting the number of packings friction and leakage characteristics
can be influenced. - Excellent static and dynamic sealing performance.
- Excellent performance in high pressure conditions.
- Useable for short and long stroke lengths.
- Reduced friction compared to XSPRS10-12 profile especially in the
high pressure range.
|
Seal housing recommandation
Tolerances | [mm]  |   |
---|
L < 10 mm
| + 0,2 | |
L ≥ 10 mm
| + 0,3 | |
∅ NA (rod groove)
| H 10 | |
∅ NI (rod diam.)
| f 8 | |
∅ NA (cylinder diam.)
| H 9 | |
∅ NI (piston groove)
| h 10 | |
|
---|
Surface roughness | Rtmax [ µ]  | Ra [ µ]  |
---|
Bottom of groove
| ≤ 6,3 | ≤ 1,6 |
Face of groove
| ≤ 15 | ≤ 3 |
|
---|
Sliding surface | Rtmax [ µ]  | Ra [ µ]  |
---|
PU, elastormeres
| ≤ 2,5 | ≤ 0,1 - 0,5 |
PTFE
| ≤ 2 | ≤ 0,05 - 0,3 |
Installation
Installation in open housings.