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August 1, 2014

Use these primary seal rings with low-viscosity liquids

This company’s M-444 Grade mechanical primary seal rings are designed especially for use with low-viscosity liquids, including Freon refrigerants, liquid oxygen, liquid carbon dioxide, propane, ethylene and acetone. Constructed from graphite and impregnated with antimony, these rings are self-polishing to maintain lubrication, even when the hydrodynamic film between the two rubbing sealing faces is extremely thin, as is the case with low-viscosity liquids. They also feature a high dynamic stability, enabling them to run in the close proximities required for critical sealing applications. — Metallized Carbon Corp., Ossining, N.Y.
www.metcar.com

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