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K2K2
Premium Ultra-High Pressure Hydraulic Piston Seal
Non-symmetrical single-acting seal design with integrated positive actuated live trapezoidal back-up ring to eliminate seal extrusion in high-pressure systems, or if the seal experiences ultra-high pressure spikes, larger extrusion gaps and/or elevated temperatures. ISO 5597 and many other sizes available.
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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P53P53
Premium Ultra-High Pressure Bi-Directional Piston Seal with Load-Bearing Live Back-Up Rings
Heavy-duty squeeze-type no-drift piston seal, L-shaped heavy-duty load bearing active back-up rings handle larger clearances, elevated temperatures, misalignment and high pressures. Rubber energizer allows for fitting on a one-piece piston design.
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
