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- Q634 - General Subjects
126. The device shown in the illustration is commonly known as a/an __________
The device is a mechanical seal, characterized by spring-loaded, flat mating faces on the shaft and housing to prevent leakage. This design utilizes two precision sealing faces, one rotating with the shaft and the other stationary in the housing, pressed together by springs, distinguishing it from soft-packing seals (which use braided packing), spring seals (which use a single lip and spring), or quad seals (which are X-shaped O-rings).
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