Pressure-Decay Drift: Separating Leakage from Thermal Effects
Air-leak readings respond to more than leakage. Check temperature and system stabilization first, retain raw curves and use a blank or refe…
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Double Silicone Seals: Trapped Pressure in the Intermediate Cavity
A second seal adds an interface and may create a closed intermediate cavity. Define venting, pressure changes and how each seal failure can…
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Leaks Between Cover Screws: Checking Span and Deflection
When leakage occurs between fasteners, examine loaded cover deflection and continuity of seal contact. More compression near screws may not…
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Gasket Compression Stops: Separating Closure from Screw Torque
A hard stop controls structural closure position; it does not by itself prove sealing. When closure depends only on tightening feel, gasket…
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Protecting Seals from Threads and Cross-Holes During Assembly
Threads, cross-holes and keyways along the assembly path deserve separate damage checks. An end chamfer does not protect the whole sliding …
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Detecting O-Ring Twist During Silicone Seal Installation
A ring that looks flat in its gland may still be twisted circumferentially. During process trials, compatible witness marks or staged obser…
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Seal Parting Lines: Keeping Flash Away from Contact Bands
Mark the parting line and trimming zones against the actual seal contact band before tooling. Small steps or residual flash across the load…
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Face-Seal O-Rings: Internal and External Pressure Direction
Pressure direction changes the forces on a face-seal O-ring and its movement within the gland. Internal, external and reversing pressure di…
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Calipers Underreading Silicone Thickness: Force and Contact Area
A low caliper reading may reflect compression or a real size difference. Separate them with controlled methods. More display resolution doe…
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Drawing Datums for Soft Silicone Parts: Free and Restrained States
Define support and restraint with dimensional datums instead of copying rigid-part conventions. Prefer repeatable location methods tied to …
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