Mechanical Seal Failures

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Prepared: 4/6/2011FileName: Master Page: 1

Mechanical Seal FailuresMechanical Seal Failures

Basic Failure Analysis


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Mechanical Seal FailureMechanical Seal Failure

AnalysisAnalysis

Seals fail for 2 basicreasons: One of the seal

components has becomedamage

Something caused thefaces to open up

The basic process is to

carefully examine all ofthe components andlook at the equipmentand application.


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Balance Seals vs Unbalanced Seals


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Testing for Seal Face Flatness


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Seal Environmental ControlsSeal Environmental Controls

Controlling the seal temperature,

fluid, removing impurities, etc.


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Seal Quench and Drain


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Double Seal with Pressurized Barrier Fluid


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Mechanical Seal Failures

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