Machinery Lubrication magazine published by Noria Corporation
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aeration issues to be checked simultaneously. Optionally, hatches and access ports can also facilitate early detection of abnormal foam and aeration conditions. Oil level sight glasses and internal tank inspections permit detection of surface deposits as well (e.g., varnish and sludge). The worst of this usually builds just above the oil level, called the splash zone, and looks similar to a tar-like bathtub ring. The cooler metal surfaces above the oil level enable splashed oil to deposit insoluble suspensions (condensation) that accumulate over time. These adherent gums and resins are associated with a range of prob- lems that require early detection including oil oxidation, microdieseling and electrostatic discharge. An advanced case of this is shown in Figure 1. In a similar way, sight glasses can also be used for early detection of deposits. The acr ylic or glass used often becomes fouled by deposits when high varnish potential condi- tions exist. Bottom Sediment and Water (BS&W) Zone Sooner or later gravity has a way of dragging things out of oil. On one hand, this is beneficial, as sedimentation and stratification of impurities can have a moderate cleansing effect on the oil. On the other hand, there are also many hazards and risks, which will be discussed later. Most of the things you don't want in your oil are heavier than the oil. These include hard solids (dirt, wear debris, corrosion debris, process solids, etc.), soft solids (sludge, agglom- erated oxides, microbial contaminants, dead additives, etc.) and stratified liquids (e.g., free water and glycol). Low-lying impurities can be referred to as bottom sediment and water (BS&W). BS&W includes all of the following: • Agglomerated sludge (accumulations of resinous solids, gums, oxides and dead additives) PUBLISHER Mike Ramsey - mramsey@noria.com GROUP PUBLISHER Brett O'Kelley - bokelley@noria.com EDITOR-IN-CHIEF Jason Sowards - jsowards@noria.com SENIOR EDITOR Jim Fitch - jfitch@noria.com TECHNICAL wRITERS Jeremy Wright - jwright@noria.com Wes Cash - wcash@noria.com Bennett Fitch - bfitch@noria.com Loren Green - lgreen@noria.com CREATIvE DIRECTOR Ryan Kiker - rkiker@noria.com GRAPHIC ARTISTS Julia Backus - jbackus@noria.com Terry Kellam - tkellam@noria.com Josh Couch - jcouch@noria.com Patrick Clark - pclark@noria.com ADvERTISING SALES Tim Davidson - tdavidson@noria.com 800-597-5460, ext. 224 MEDIA PRODUCTION MANAGER Ally Katz - akatz@noria.com CORRESPONDENCE You may address articles, case studies, special requests and other correspondence to: Editor-in-chief MACHINERY LUBRICATION Noria Corporation 1328 E. 43rd Court • Tulsa, Oklahoma 74105 Phone: 918-749-1400 Fax: 918-746-0925 Email address: jsowards@noria.com MACHINERY LUBRICATION Volume 14 - Issue 1 January-February 2014 ( USPS 021-695) is published bimonthly by Noria Corporation, 1328 E. 43rd Court, Tulsa, OK 74105-4124. Periodicals postage paid at Tulsa, OK and additional mailing offices. POSTMASTER: Send address changes and form 3579 to MACHINERY LUBRICATION, P.O. BOX 47702, Plymouth, MN 55447-0401. Canada Post International Publications Mail Product (Canadian Distribution) Publications Mail Agreement #40612608. Send returns (Canada) to BleuChip Interna - tional, P.O. Box 25542, London, Ontario, N6C 6B2. SUBSCRIBER SERVICES: The publisher reserves the right to accept or reject any subscription. Send subscription orders, change of address and all subscription-related correspondence to: Noria Corporation, P.O. Box 47702, Plymouth, MN 55447. 800-869-6882 or Fax: 866-658-6156. Copyright © 2014 Noria Corporation. Noria, Machinery Lubrication and associated logos are trademarks of Noria Corporation. All rights reserved. Reproduction in whole or in part in any form or medium without express written permission of Noria Corporation is prohibited. Machinery Lubrication is an independently produced publication of Noria Corporation. Noria Corporation reserves the right, with respect to submissions, to revise, republish and authorize its readers to use the tips and articles submitted for personal and commercial use. The opinions of those interviewed and those who write articles for this magazine are not necessarily shared by Noria Corporation. CONTENT NOTICE: The recommendations and information provided in Machinery Lubrication and its related information properties do not purport to address all of the safety concerns that may exist. It is the respon - sibility of the user to follow appropriate safety and health practices. Further, Noria does not make any representations, warranties, express or implied, regarding the accuracy, completeness or suitability of the information or recommendations provided herewith. Noria shall not be liable for any inju- ries, loss of profits, business, goodwill, data, interruption of business, nor for incidental or consequential merchantability or fitness of purpose, or damages related to the use of information or recommendations provided. Machinery Lubrication 3 www.machinerylubrication.com | January - February 2014 | 3 Figure 2. The three inspection zones in common oil reservoirs and sumps