Lip Opening Pressure (LOP)
From Sealing Technology & Engineering Glossary
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| Name | Lip Opening Pressure (LOP) |
| Definition | The pressure necessary for flowing air at 10000 cm3/m between the contact surface of a radial lip seal and shaft-size mandrel under the following conditions: the seal case outer diameter clamped to be concentric with the mandrel and the pressurized air applied to the outside lip surface.applied to the outside lip surface. |
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