Premium Long-Life Pneumatic Seal

K5


Premium Long-Life Pneumatic Seal

Non-symmetrical single-acting seal designed with a radius edge of the lip to ensure lubrication retention on the cylinder wall, providing a long service life in pneumatic sealing application. Economical pneumatic piston seal.




Operating Range
MaterialPressure up toTemperatureSurface Speed
Duralast 4203250psi (17bar)-22°F to 260°F (-30°C to 125°C)3.0ft/s (1.0m/s)
Duralast 8166250psi (17bar)-4°F to 400°F (-20°C to 210°C)3.0ft/s (1.0m/s)
Duralast 5101250psi (17bar)-22°F to 212°F (-30°C to 100°C)3.0ft/s (1.0m/s)
Duralast 6146250psi (17bar)-30°F to 302°F (-35°C to 150°C)3.0ft/s (1.0m/s)
Additional standard materials available. Maximum operating temperature in air is 50°F ( 28°C) below specified max. temperature.
Important Note: Maximum values above depend on extrusion gap, clearances, seal material, media, temperatures, pressures, surface speed, dynamic running surface finish and working environment. Seals cannot be operated at their upper ratings at the same time. For pressure above specified operating pressure or for any advice, please contact engineering@ahpseals.com
Size Table (Inch)Standard range sizes listed below are preferred sizes for new design applications. Seals are available for any bore diameter, cross-section and groove width in 0.001 inch increments, including functional range diameter and optional groove width. Additionally we offer any other seal size as required.
A
Bore Diameter
CS
Cross-Section
D
Groove
Diameter
B*
Gland
Diameter
Tolerance
L
Groove
Width
Standard
L Groove
Width Optional Standards
C
R1
R
Standard Range
Functional Range
Tolerance
D=
B=
D,B
Tol.+0.012/-0
min.
max.
max.
0.500 - 1.249"
0.500 - 3.000"
+0.001/-0
0.125
A - 0.250
A - 0.024
+0/-0.002
0.205
0.137/0.170/0.275
0.055
0.015
0.006
1.250 - 1.449"
0.500 - 8.000"
+0.001/-0
0.125
A - 0.250
A - 0.024
+0/-0.002
0.275
0.137/0.170/0.205
0.055
0.015
0.006
1.500 - 1.999"
0.500 - 10.000"
+0.002/-0
0.188
A - 0.375
A - 0.026
+0/-0.002
0.313
0.205/0.275/0.344/0.413
0.080
0.020
0.006
2.000 - 2.449"
0.500 - 10.000"
+0.003/-0
0.188
A - 0.375
A - 0.026
+0/-0.002
0.344
0.205/0.275/0.313/0.413
0.080
0.020
0.006
2.500 - 4.999"0.750 - 40.000"+0.003/-00.250A - 0.500A - 0.027+0/0.0030.4130.275/0.344/0.550/0.6200.0800.0200.008
5.000 - 6.249"
1.000 - 45.000"
+0.004/-0
0.313
A - 0.625
A - 0.029+0/0.004
0.550
0.344/0.413/0.620
0.085
0.025
0.008
6.250 - 11.999"
1.000 - 55.000"
+0.005/-0
0.375
A - 0.750
A - 0.030
+0/0.005
0.620
0.413/0.550/0.688/0.825
0.090
0.030
0.008
12.000 - 29.999"
2.000 - 60.000"
+0.006/-0
0.500
A - 1.000
A - 0.031
+0/0.006
0.825
0.550/0.620/0.688/1.100
0.120
0.030
0.008
30.000 - 39.999"
2.500 - 70.000"
+0.007/-0
0.625
A - 1.250
A - 0.032
+0/0.007
1.030
0.688/0.825/1.100/1.375
0.140
0.030
0.008
40.000 - 49.999"
5.000 - 70.000"
+0.008/-0
0.750
A - 1.500
A - 0.034
+0/0.008
1.240
0.825/1.100/1.375/1.650
0.170
0.040
0.008
50.000 - 70.000"
6.000 - 70.000"
+0.009/-0
1.000
A - 2.000
A - 0.036
+0/0.009
1.520
1.100/1.375/1.650
0.230
0.060
0.008
> 70.000"
consult with Ahpseals engineering
* Based on using wear rings. Surface finish: bore (A) Ra 4-12µin – Static (D,L) Ra max. 32µin. See Technical Info for more specific information.

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