APG Hydraulic Seals Catalog

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www.callapg.com 713-675-5271 FAX 713-675-2730 1-800-888-5223 FAX 1-800-444-3252 Loaded Lip Seals 70° Durometer Nitrile 92° Durometer Urethane Loaded Lip Seals are very versatile and can be used as rod seals or piston seals. They are considered to be multi-purpose seals and are designed for significantly improved performance. APG Loaded Lip Seals are molded from 92 Durometer Urethane with a 70 Durometer Nitrile energizer. The energizer ensures constant pressure on the sealing lips. Temperature: -65° to +300°F Pressure: 0 to 5000 psi Fluids: Petroleum based Hydraulic Fluids Standard The Standard Loaded Lip Seal is the most widely used design of Loaded Lip Seal. By energizing the sealing lips with an endless O-ring, you are assured of uniform, positive lip contact and excellent lowpressure sealing. The seal depth is equal to the radial width, which results in a square design. Standard Loaded Lip Seals can be widely used to interchange with existing hydraulic packing and/or O-rings without changing dimensions. Type "B" The Loaded Lip Seal Type “B” features a back-beveled sealing lip. This provides greater film breaking and increased unit loading at the sealing surface. The seal depth is generally 1 1/2 times the radial width to ensure seal stability in the most rugged applications. It is most commonly used as a rod seal. Deep Style The Loaded Lip Seal – Deep Style incorporates the same unique design as the Standard Loaded Lip Seal, plus its depth is 1 1/2 times greater than the radial width. This increases seal stability to withstand rugged, high shock, heavy-duty applications. This seal will replace many kinds of Vee Packing. When minimum drag is needed, use Standard Loaded Lip Seals or Loaded Lip Seals – Deep Style. L9011 (Metric) The L9011 Loaded Lip Seal incorporates the same unique design as the Type “B”. The energizer, however, is a Q-Ring instead of an O-Ring. 2
www.callapg.com 713-675-5271 FAX 713-675-2730 1-800-888-5223 FAX 1-800-444-3252 Loaded Lip Seal Design Data Rod Seal Installation Piston Seal Installation Rod Tolerance Tolerance Max. Dia. of Rod of Groove Diametrical Dia. Dia. Clearance C 1000 3000 5000 R R G PSI PSI PSI 0 - 3/4 +.0 +.004 .008 .006 .004 -.002 -.0 3/4 - 1 1/4 +.0 +.005 .010 .008 .004 -.003 -.0 1 1/4 - 2 +.0 +.006 .012 .008 .004 -.003 -.0 2 - 3 -.0 +.007 .012 .008 .005 -.003 -.0 3 - 5 +.0 +.009 .014 .010 -.004 -.0 5 - 7 +.0 +.010 .014 .010 -.004 -.0 7 - 9 +.0 +.011 .016 .010 -.005 -.0 9 - 12 +.0 +.012 .016 -.005 -.0 12 -17 +.0 +.012 .018 -.006 -.0 Cylinder Tolerance Tolerance Max. Dia. of Cylinder of Groove Diametrical Dia. Dia. Clearance C 1000 3000 5000 B B P PSI PSI PSI 0 - 3/4 +.002 +.0 .008 .006 .004 -.0 -.004 3/4 - 1 1/4 +.003 +.0 .010 .008 .004 -.0 -.005 1 1/4 - 2 +.003 +.0 .012 .008 .004 -.0 -.006 2 - 3 +.003 +.0 .012 .008 .005 -.0 -.007 3 - 5 +.004 +.0 .014 .010 -.0 -.009 5 - 7 +.004 +.0 .014 .010 -.0 -.010 7 - 9 +.005 +.0 .016 .010 -.0 -.011 9 - 12 +.005 +.0 .016 -.0 -.012 12 - 17 +.006 +.0 .018 -.0 -.012 3
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APG Hydraulic Seals Catalog

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