wiper ring

scraper ring

The bottom ring on a piston whose function is to scrape lubricating oil away from the cylinder walls of a reciprocating engine. This prevents the oil from getting into the combustion chamber of the cylinder. Also called a wiper ring.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
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The wiper ring that has also been introduced additionally protects the gland packing from contamination and damage.
Globe valve with membrane actuator
The strainer is made of stainless steel and includes a heat-resistant wiper ring. The cups and saucers and the strainer cup are produced from the same high quality glass material.
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Additional standard equipment includes en coder, air drive, a drip pan, wiper ring, data logging and many software enhancements.
Drum filler
An optional wiper ring makes the unit suitable for harsh environments.
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Additional standard equipment includes encoder, air drive, a drip pan, wiper ring, data logging and many software enhancements.
Drum filler
A wiper ring, together with a spring-loaded drip cup ensures that drips are virtually eliminated, while a fume hood removes any vapours generated during filling.
Permex Unit for Canada Dry
A wiper ring, together with a spring-loaded drip cup, ensures that drips are virtually eliminated, whilst a fume hood removes any vapours generated during the fill.
Permex Alpaca Provides Mobile Filling Flexibility

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