Premium High-Pressure Double-Lip Hydraulic Rod Seal-S17A

S17A


Premium High-Pressure Double-Lip Hydraulic Rod Seal

Eliminates seal extrusion in high-pressure systems with shock load. Design offers improved sealing performance and stability due to its secondary lip that also retains lubrication between both dynamic seal lips, providing long service life.




Operating Range
MaterialOperating Pressure up toMaximum Pressure up toTemperatureSurface Speed up toFluid, Media
Compatability
Duralast 42035,000psi (350bar)10,000psi (700bar)-22°F to 260°F (-30°C to 125°C)1.6ft/s (0.5m/s)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 44038,000psi (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 81663,800psi (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 51013,800psi (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 61463,800psi (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 Teflon®, 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 rod 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
Rod 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/-0min.
max.
max.
0.250 - 0.624"
0.500 - 3.000"
+0/-.001
0.125
A + 0.250
A + 0.024
+0.002/-0
0.205
0.275
0.055
0.015
0.006
0.625 - 0.999"
0.500 - 8.000"
+0/-.001
0.125
A + 0.250
A + 0.024
+0.002/-0
0.275
0.205/0.344
0.055
0.015
0.006
1.000 - 1.499"
0.500 - 10.000"
+0/-.002
0.188
A + 0.375
A + 0.026
+0.002/-0
0.313
0.344/0.413
0.080
0.020
0.006
1.500 - 1.999"
0.500 - 10.000"
+0/-.002
0.188
A + 0.375
A + 0.026
+0.002/-0
0.344
0.313/0.413
0.080
0.020
0.006
2.000 - 3.499"
0.750 - 40.000"
+0/-.002
0.250
A + 0.500
A + 0.027
+0.003/-0
0.413
0.550/0.620
0.080
0.020
0.008
3.500 - 4.999"
1.000 - 45.000"
+0/-.002
0.313
A + 0.625
A + 0.029
+0.004/-0
0.550
0.550/0.620
0.085
0.025
0.008
5.000 - 9.999"
1.000 - 55.000"
+0/-.002
0.375
A + 0.750
A + 0.030
+0.005/-0
0.620
0.688/0.825
0.090
0.030
0.008
10.000 - 19.999"
2.000 - 60.000"
+0/-.003
0.500
A + 1.000
A + 0.031
+0.006/-0
0.825
1.100
0.120
0.030
0.006
20.000 - 29.999"
2.500 - 70.000"
+0/-.004
0.625
A + 1.250
A + 0.032
+0.007/-0
1.030
1.100/1.375
0.140
0.030
0.008
30.000 - 39.999"
5.000 - 70.000"
+0/-.005
0.750
A + 1.500
A + 0.034
+0.008/-0
1.240
1.100/1.375/1.650
0.170
0.040
0.008
40.000 - 70.000"
6.000 - 70.000"
+0/-.006
1.000
A + 2.000
A + 0.036
+0.009/-0
1.520
1.650
0.230
0.060
0.008
> 70.000"
consult with Ahpseals engineering
* Based on using wear rings. For rod diameters below 0.750" an open or split housing for easy installation is recommended.
Surface finish: rod (A) Ra 4-12µin – Static (D,L) Ra max. 32µin. See Technical Info for more specific information.

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Seal Housing Drawing