Premium Pre-Energized Long-Life Vee-Packing


Premium Pre-Energized Long-Life Vee-Packing

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.

Operating Range
MaterialOperating Pressure up toMaximum Pressure up toTemperatureSurface Speed up toFluid, Media
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
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.
3 Rings
Standard RangeFunctional RangeD=A, BPD, BBP=B=Tol.+0.020/-0Tol.+0.020/-0min.max.
0.375 - 0.999"0.500 - 5.000"3/160.188A + 0.375+0/-.002+0.002/-0D - 0.026A + 0.0260.650≥ 0.3750.0800.020
1.000 - 2.749"0.750 - 12.000"1/40.250A + 0.500+0/-.003+0.003/-0D - 0.027A + 0.0270.750≥ 0.4400.0850.020
2.750 - 3.999"1.000 - 22.000"5/160.313A + 0.625+0/-.003+0.003/-0D - 0.029A + 0.0290.875≥ 0.5500.0900.030
4.000 - 5.499"1.000 - 40.000"3/80.375A + 0.750+0/-.004+0.004/-0D - 0.030A + 0.0301.000≥ 0.6500.1000.030
5.500 - 6.499"1.500 - 50.000"7/160.438A + 0.875+0/-.004+0.004/-0D - 0.032A + 0.0321.125≥ 0.7600.1100.030
6.500 - 15.999"2.000 - 70.000"1/20.500A + 1.000+0/-.005+0.005/-0D - 0.035A + 0.0351.250≥ 0.8750.1200.030
16.000 -19.9992.000 - 70.000"9/160.563A + 1.125+0/-.005+0.005/-0D - 0.038A + 0.0381.375≥ 0.9850.1300.030
20.000 - 24.999"2.500 - 70.000"5/80.625A + 1.250+0/-.006+0.006/-0D - 0.040A + 0.0401.500≥ 1.1000.1400.030
25.000 - 39.999"5.000 - 70.000"3/40.750A + 1.500+0/-.007+0.007/-0D - 0.045A + 0.0451.750≥ 1.3100.1700.040
40.000 - 70.000"6.000 - 70.000"11.000A + 2.000+0/-.008+0.008/-0D - 0.050A + 0.0502.500≥ 1.7500.2300.040
> 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.

Seal Size Selector – Request a Quote

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