Calculating the sealing gap height
 | Key: A/E: Reversal points dp/dx: Compression pa: Pressure/working pressure ua: Velocity h: Sealing gap height wa: dp/dx max |
The rod seal is tight, if the oil film dragged outside is dragged in again.
Lubricating film heights when driving the rod in and out:
Leakage per double stroke (= rod driven in and out, H = stroke length)
Principle and terminology
relating to a rod seal prior to installation
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