APR-132X116.5X6.3-AD1Piston seal with PTFE slide ring with incorporated seal element on dynamic surface
APR seals are double-acting piston seals with a PTFE slide ring and a nitrile rubber O-ring energizer. The slide ring incorporates a nitrile rubber X-ring at the dynamic interface to improve sealing performance. Notches in the slide ring edges enable rapid pressurization of the seal to react quickly to changes in pressure and direction.
Dimensions
| D |
132 mm
|
Cylinder bore diameter |
|---|---|---|
| d |
116.5 mm
|
Piston groove diameter |
| L |
6.3 mm
|
Piston groove width |
| S |
7.75 mm
|
Radial depth |
| R |
max. 0.9 mm
|
Groove radius |
| C |
min. 4 mm
|
Lead-in chamfer length |
| tol D |
0.1 mm
|
Upper limit deviation |
|---|---|---|
|
0 mm
|
Lower limit deviation | |
|
H9
|
Tolerance class for cylinder bore diameter | |
| tol d |
0 mm
|
Upper limit deviation |
|
-0.087 mm
|
Lower limit deviation | |
|
h9
|
Tolerance class for piston groove diameter | |
| tol L |
0.2 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 |
0.6 mm
|
| Extrusion gap at 200 bar | e |
0.2 mm
|
| Extrusion gap at 350 bar | e |
0.13 mm
|
Pressure and speed
| Pressure |
max. 350 bar
|
| Speed |
max. 1 m/s
|
Operating temperature
| T6 |
max. 130 °C
|
Extreme upper temperature limit |
|---|---|---|
| T5 |
max. 110 °C
|
Reduced performance upper temperature limit |
| T4 |
max. 100 °C
|
Upper operating temperature limit |
| T3 |
min. -20 °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 |
Polytetrafluoroethylene (PTFE 741)
|
| Additional element |
Nitrile Rubber (NBR A-8501)
|
| Additional element |
Nitrile Rubber (NBR A-8501)
|
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