High-Performance Rod Sealing Systems
For linear, dynamic sealing applications
To achieve the best dynamic sealing performance, the following needs to be taken into consideration:
When the rod extends past the rod seal, a thin film of oil remains on the rod trapped in microscopic surface imperfections. The thickness of the oil film depends on the surface finish, rod seal design and surface speed of the rod. During the return stroke, this thin film can be removed by an aggressive wiper lip, resulting in system leakage. Therefore, it is important to properly pair the wiper and the rod seal to minimize leakage and to achieve the best dynamic sealing performance. The properly selected sealing components comprise a sealing system. Some examples are listed below.
High-Performance Rod Sealing Systems:
Sealing System 1
Features:
Benefits:
- Driest rod sealing
- Best dirt removal
- Long service life
Sealing System 2
Features:
Benefits:
- Dry rod sealing
- Best dirt removal
- Long service life
Sealing System 3
Features:
Benefits:
- Good low and high pressure sealing
- Good dirt removal
- Economic sealing system
Sealing System 4
Features:
Benefits:
- Most economic sealing system
- Good high pressure sealing
- Good dirt removal
- Long service life
Application-Specific High-Performance Sealing Systems:
To provide the best sealing performance, the sealing system approach must be applied to all sealing applications, including servicing the following applications:
- Position Sensing Cylinders
- Truck Dump Cylinders
- Motion Converting Cylinders
- Shock Absorbing Cylinders
- Pressure Intensifying Cylinders
- Elevator Lift Cylinders
- Telescopic Cylinders
- Longwall Shield Cylinders
- Tunnel Boring Gripper Cylinders
For your specific sealing needs, please contact engineering to help you in specifying a sealing system that’s best for your application.
Specific Seal Categories for Sealing Systems:
Wipers
Straight wiper lips
Beveled wiper lips
Double lip wipers with straight wiper lip
Rod Seals
Long-life rod seals
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S17AS17A
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 RangeMaterial Operating Pressure up to Maximum Pressure up to Temperature Surface Speed up to Fluid, Media
CompatabilityDuralast 4203 5,000psi (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 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 - Compare
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S2S2
Ultra-High Pressure Hydraulic Rod Seal
Non-symmetrical design with integrated positive actuated live trapezoidal back-up ring to eliminate seal extrusion in high-pressure systems with ultra-high pressure spikes. Reduced friction and wear provide a long service life.
Operating RangeMaterial Operating Pressure up to Maximum Pressure up to Temperature Surface Speed up to Fluid, Media
CompatabilityDuralast 4203 5,000psi (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 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 -
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S2AS2A
High-Pressure Hydraulic Rod Seal
Non-symmetrical seal designed to eliminate seal extrusion in high-pressure systems with high pressure spikes. The integrated positive actuated live rectangular back-up ring eliminates extrusion, yet allows this seal to be fitted when fitment and assembly are more difficult. Reduced friction and wear provide a long service life.
Operating RangeMaterial Operating Pressure up to Maximum Pressure up to Temperature Surface Speed up to Fluid, Media
CompatabilityDuralast 4203 5,000psi (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 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
Long-life double lip rod seals
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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 RangeMaterial Operating Pressure up to Maximum Pressure up to Temperature Surface Speed up to Fluid, Media
CompatabilityDuralast 4203 5,000psi (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 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
Double lip, energized rod seal
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R50R50
High-Pressure Hydraulic Rod Seal
Designed to eliminate seal extrusion in high-pressure systems with shock load and increased clearance gaps where improved low-pressure sealing is required. Easier fitment for smaller diameter seals. R50 provides excellent sealing performance, longer service life and stability due to additional sealing lips. Used for mining equipment and other demanding hydraulic sealing applications.
Operating RangeMaterial Operating Pressure up to Maximum Pressure up to Temperature Surface Speed up to Fluid, Media
CompatabilityDuralast 4203 5,000psi (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 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 -
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S17CS17C
Premium High-Pressure Double-Lip Hydraulic Rod Seal
Eliminates seal extrusion in high-pressure systems with shock load and low pressure startup. Improved sealing performance and stability due to its secondary lip that retains lubrication between both dynamic seal lips, providing long service life.
Operating RangeMaterial Operating Pressure up to Maximum Pressure up to Temperature Surface Speed up to Fluid, Media
CompatabilityDuralast 4203 5,000psi (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 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 -
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S4S4
Ultra-High Pressure Loaded Hydraulic Rod Seal
Non-symmetrical design with integrated positive actuated live trapezoidal back-up ring to eliminate seal extrusion in high-pressure systems, with ultra-high pressure spikes and where low-pressure startup may be present.
Operating RangeMaterial Operating Pressure up to Maximum Pressure up to Temperature Surface Speed up to Fluid, Media
CompatabilityDuralast 4203 5,000psi (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 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
Buffer seal
Contact us, request more information or call 1-800-283-7140 for immediate answers to your questions.
*Maximum values depend on seal material, seal configuration, media, temperatures, pressures, surface speed, dynamic running surface finish and working environment. Data provided are guidelines for ideal operating conditions. Seals cannot be operated at their upper pressure and speed ratings at the same time. For maximum seal life expectancy, do not operate your seal beyond 75% of any of its operating limits. Please consult engineering or call 1-800-283-7140 for advice.
American High Performance Seals assumes no obligation or liability for any advice furnished, or results obtained with respect to these products. All such advice is given and accepted at the buyer’s risk.
This information, based on our experience, is offered as part of our service to customers. It is intended for use by persons having technical skill, at their own discretion and risk. We do not guarantee favorable results, and we assume no liability in connection with its use.
Any purchases resulting from information provided by American High Performance Seals, Inc., including proposals, recommendations and quotes, are subject to “AHPSEALS TERMS AND CONDITIONS OF SALE.”