LTP-209-E3RRubber lip piston seal with SKF patented locking anti-extrusion rings
LTP seals are double-acting piston seals with a nitrile rubber sealing ring and polyamide anti-extrusion rings on both sides. The anti-extrusion rings provide improved high pressure performance by reducing the likelihood of gap extrusion. The anti-extrusion rings are split for easy installation and their locking design reduces assembly issues.
Dimensions
| D |
23.81 mm
|
Cylinder bore diameter |
|---|---|---|
| d |
17.67 mm
|
Piston groove diameter |
| L |
4.75 mm
|
Piston groove width |
| S |
3.07 mm
|
Radial depth |
| R |
max. 0.51 mm
|
Groove radius |
| C |
min. 3.18 mm
|
Lead-in chamfer length |
| tol D |
0.05 mm
|
Upper limit deviation |
|---|---|---|
|
0 mm
|
Lower limit deviation | |
| tol d |
0 mm
|
Upper limit deviation |
|
-0.05 mm
|
Lower limit deviation | |
| tol L |
0.127 mm
|
Upper limit deviation |
|
0 mm
|
Lower limit deviation |
Maximum extrusion gap
| Reference temperature for extrusion gap |
80 °C
|
|
| Extrusion gap at 70 bar | e |
0.64 mm
|
| Extrusion gap at 210 bar | e |
0.2 mm
|
| Extrusion gap at 340 bar | e |
0.13 mm
|
Pressure and speed
| Pressure |
max. 340 bar
|
| Speed at pressure ≤ 250 bar |
1 m/s
|
| Speed at pressure ≤ 340 bar |
0.5 m/s
|
Operating temperature
| T6 |
max. 120 °C
|
Extreme upper temperature limit |
|---|---|---|
| T5 |
max. 110 °C
|
Reduced performance upper temperature limit |
| T4 |
max. 100 °C
|
Upper operating temperature limit |
| T3 |
min. -25 °C
|
Lower operating temperature limit |
| T2 |
min. -30 °C
|
Reduced performance lower temperature limit |
| T1 |
min. -40 °C
|
Extreme lower temperature limit |
|
Maximum values of application parameters (e.g. pressure, speed, temperature, e-gap) should not be applied continuously nor simultaneously.
|
||
Materials
| Primary sealing element |
Nitrile Rubber (NBR A-8501)
|
| Additional element |
Polyamide (PA P-2506)
|
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