CASE STUDY
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Air conditioning and refrigeration equipment have unusual lubrication problems. Long periods of inactivity followed by continuous operation, exposure to heat, cold, rain, sun and dust in many installations, and inaccessible locations of system components all contribute to the recognized need for better lubricants in this field. One lubricant, an all-purpose grease reinforced in its lubricity and “staying power” by a suspension of PTFE resin powder is being used to the air conditioning and refrigeration maintenance field with promising success.
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At Duke University the superintendant of the Air Conditioning Refrigeration Department reported greatly reduced bearing trouble and, consequently, less equipment downtime in pumps and motors after he switched from conventional greases to PTFE reinforced grease.
The specialized lubricant, Magnalube-G has been used in difficult jobs such as heavy construction and mining equipment, marine material handling and in numerous other high and low temperature applications.
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"We have not had a major bearing breakdown
since we started using Magnalube-G."
- Superintendent of the Air-conditioning/Refrigeration Department of the
Physical Plant Div. of Duke University, Bobby Collins
How It Works:
To ensure continued performance of the grease on equipment operating at high loads and extreme temperatures, Magnalube, LLC. suspends micro particles of PTFE in a special petroleum carrier. As a result, the mechanically and chemically stable compound deposits a fine, protective, and lubricating film on the metal that will continue to function even if the grease is extruded away or the environment degrades or disintegrates the petroleum ingredients.
Since the PTFE-loaded Magnalube-G is water resistant, it provides extended protection against rust in most environments, and does not wash away in rain or snow. Its stability is such that it will not migrate from hot surfaces. The ability of this specialized grease to continually lubricate at temperature ranges from -40°F to 530°F (-40°C to 277°C) provides ample safety margin for difficult applications.
"...holds up longer than previously used
greases, thus it does not require re-greasing
as often."
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Cooler Bearings:
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Withstands rain storms:
In some of the cooling tower motors at Duke, heavy rains had often washed the oil out of the oil cups. This added a maintenance chore of re-oiling and/or checking them after heavy rains. To avoid this added cost, many of these oil cups have been replaced by grease fittings so that Magnalube-G can be used. They stay greased and the rain doesn’t bother them. |
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