HYDRODYNAMIC SEALS
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HYDRODYNAMIC SEALS HYDRODYNAMIC "LIFT-OFF" SEALS FOR CRITICAL AEROSPACE APPLICATIONS More than 40 years of innovation have made Quaiiseai Technology a globally trusted leader in engineered components, seals, assemblies and subsystems for demanding environments. As a critical applications solutions provider, Qualiseal Technology recently developed a specialized design, manufacturing and testing process for hydrodynamic "lift-off" seals. With an Advanced Spiral Groove design, our HD seals are engineered for superior performance at high altitudes and a variety of temperatures and pressures. In rigorous testing, Qualiseal HD seals performed nearly three times better than competing HD seals. Aircraft operators that install Qualiseal HD seals can benefit from an industry-leading maintenance cycle of over 20,000 hours. OFFERINGS • Hydrodynamic (lift-off) face seals -bellows and spring-energized APPLICATIONS • High speed applications such as gearbox, starter and engine main shaft seals KEY FEATURES & BENEFITS • Operates in wide range of temperatures between cryogenic and 1000°F (538.8°C) for bellows-energized seals and -65°F and 400°F (-53.9°C and 204.4°C) for spring-energized seals • Withstands pressures up to 50 psid • Excellent high-altitude performance with low leakage rates • Service life of more than 20,000 hours • Sizes: 1in - 6in diameters • FAA certified SEAL MATERIALS • Various carbon grades • Inconel or other metal bellows material Qualiseal Technology 7319 West Wilson Ave Phone: +1-708-887-6080 sales@qualiseal.com www.qualiseal.com a Technetics Group compan

HYDRODYNAMIC FEATURES • Advanced Spiral Groove design • Inward pumping or outward pumping designs • Unidirectional • Low heat generation • Low friction • Long life and reduced wear TESTING, DESIGN & RELIABLE ENGINEERING • Dedicated Engineering and Program Management teams allowing for quick analysis and hardware turn around • Superior technology validated through CFD analysis, as well as extensive rig and engine tests • Accurate performance predications at altitude and sea level • 30+ years in carbon face seal manufacturing coupled with 40+ years of dynamic seal and bellows design •...