Premium Vee-packing that does not require the tightening of the gland to maintain a positive seal due to the pre-energized design and material of the Vee-rings, leading to 3 to 4 times the service life over traditional rubber fabric Vee-packing. Retro fits seals of similar design.
mineral oil-based fluids, fire-resistant water-based hydraulic fluids including HFA and HFB, sea water, biodegradable fluids, vegetable oils, bio-diesels, and most modern hydraulic fluids
Duralast 4403
8,000psi (520bar)
14,500psi (1000bar)
-22°F to 260°F (-30°C to 125°C)
1.6ft/s (0.5m/s)
same as Duralast 4203
Duralast 8166
3,800psi (260bar)
5,000psi (350bar)
-4°F to 392°F (-20°C to 200°C)
3.2ft/s (1.0m/s)
fire-resistant fluids, phosphate esters, mineral oils, greases, and most inorganic acids and chemicals, gasoline and gasoline/alcohol blends, hard vacuum
Duralast 5101
3,800psi (260bar)
5,000psi (350bar)
-22°F to 212°F (-30°C to 100°C)
1.6ft/s (0.5m/s)
mineral-oil based hydraulic fluids, silicone greases, petroleum-based oils, water and alcohols
Duralast 6146
3,800psi (260bar)
5,000psi (350bar)
-30°F to 302°F (-35°C to 150°C)
2.0ft/s (0.7m/s)
excellent heat and oil resistance, including exposure to such oil additives as detergents, anti-oxidants and anti-wear agents
Additional standard materials available: High-performance polyurethanes, NBR (Nitrile), FKM, Viton®, HNBR, EPDM, Aflas®, Hytrel®, Silicone, low- and high-temperature, FDA-compliant seal material grades, PTFE, filled PTFE®, engineered thermoplastics and proprietary specialized Duralast™, Duraloy™, and Permachem™ materials.
*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. Pressure ratings can be increased by reducing clearances. For pressure above specified operating pressure, 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 shaft diameter size in 0.001 inch increments, including functional range and optional groove width. Additionally we offer any other seal size as required.
A
Diameter
CS
Cross-Section
CS
Cross-section
D
Diameter
Tolerance
Tolerance
BP*
Diameter
B*
Diameter
L
Standard
3 Rings
L
Optional
C
R
Standard Range
Functional Range
D=
A, BP
D, B
BP=
B=
Tol.+0.020/-0
Tol.+0.020/-0
min.
max.
0.375 - 0.999"
0.500 - 5.000"
3/16
0.188
A + 0.375
+0/-.002
+0.002/-0
D - 0.026
A + 0.026
0.650
≥ 0.375
0.080
0.020
1.000 - 2.749"
0.750 - 12.000"
1/4
0.250
A + 0.500
+0/-.003
+0.003/-0
D - 0.027
A + 0.027
0.750
≥ 0.440
0.085
0.020
2.750 - 3.999"
1.000 - 22.000"
5/16
0.313
A + 0.625
+0/-.003
+0.003/-0
D - 0.029
A + 0.029
0.875
≥ 0.550
0.090
0.030
4.000 - 5.499"
1.000 - 40.000"
3/8
0.375
A + 0.750
+0/-.004
+0.004/-0
D - 0.030
A + 0.030
1.000
≥ 0.650
0.100
0.030
5.500 - 6.499"
1.500 - 50.000"
7/16
0.438
A + 0.875
+0/-.004
+0.004/-0
D - 0.032
A + 0.032
1.125
≥ 0.760
0.110
0.030
6.500 - 15.999"
2.000 - 70.000"
1/2
0.500
A + 1.000
+0/-.005
+0.005/-0
D - 0.035
A + 0.035
1.250
≥ 0.875
0.120
0.030
16.000 -19.999
2.000 - 70.000"
9/16
0.563
A + 1.125
+0/-.005
+0.005/-0
D - 0.038
A + 0.038
1.375
≥ 0.985
0.130
0.030
20.000 - 24.999"
2.500 - 70.000"
5/8
0.625
A + 1.250
+0/-.006
+0.006/-0
D - 0.040
A + 0.040
1.500
≥ 1.100
0.140
0.030
25.000 - 39.999"
5.000 - 70.000"
3/4
0.750
A + 1.500
+0/-.007
+0.007/-0
D - 0.045
A + 0.045
1.750
≥ 1.310
0.170
0.040
40.000 - 70.000"
6.000 - 70.000"
1
1.000
A + 2.000
+0/-.008
+0.008/-0
D - 0.050
A + 0.050
2.500
≥ 1.750
0.230
0.040
> 70.000"
consult with Ahpseals engineering
* Based on using wear rings. Surface finish: Dynamic Ra 4-12µin – Static (D,L) Ra max. 32µin. See Technical Info for more specific information.
Available as split or endless rings. Optional size L is available for any size greater than specified.
Size Table (Metric)Standard range sizes listed below are preferred sizes for new design applications. Seals are available for any shaft diameter size in 0.01 mm increments, including functional range and optional groove width. Additionally we offer any other seal size as required.
A
Diameter
Tol. h9
CS
Cross-section
D
Tol. H9
P*
Diameter Tol. h9
B*
Diameter Tol. H9
L
Standard
3 Rings
L
Optional
C
R
Standard Range
Functional Range
D=
P=
B=
Tol.+0.50/-0
Tol.+0.50/-0
min.
max.
10.00 - 30.99
10.00 - 50.00
5.00
A + 10.00
D - 0.65
A + 0.65
16.00
≥ 9.00
1.30
0.25
31.00 - 34.99
10.00 - 125.00
6.00
A + 12.00
D - 0.65
A + 0.65
18.00
≥ 10.00
2.00
0.25
35.00 - 109.99
20.00 - 150.00
7.50
A + 15.00
D - 0.68
A + 0.68
22.50
≥ 13.00
2.20
0.50
110.00 - 149.99
30.00 - 250.00
10.00
A + 20.00
D - 0.73
A + 0.73
30.00
≥ 17.50
2.50
0.70
150.00 - 209.99
50.00 - 350.00
12.50
A + 25.00
D - 0.76
A + 0.76
40.00
≥ 22.00
2.80
0.70
210.00 - 309.99
100.00 - 720.00
15.00
A + 30.00
D - 0.78
A + 0.78
45.00
≥ 27.00
3.00
0.70
310.00 - 1800.00
200.00 - 1800.00
20.00
A + 40.00
D - 0.80
A + 0.80
60.00
≥ 35.00
3.50
0.70
> 1800.00
consult with Ahpseals engineering
* Based on using wear rings. Surface finish: Dynamic Ra 0.1-0.3µm – Static (D,L) Ra max. 0.8µm. See Technical Info for more specific information. Available as split or endless rings. Optional size L is available for any size greater than specified.
