The purpose of this technical committee report is to
present the results of an investigation of the effects of
chemical water treatment on single-face mechanical
seals in recirculating hot water systems. The study was
done following the publication in 1970 of NACE
Publication 7A170, "Causes of Failure of Rotary Shaft
Seals in Cooling and Heating System Pumps." That
report was published by Unit Committee T-7A on Cooling
Water after that committee had conducted a symposium
on the subject, held various panel discussions, reviewed
literature, and investigated numerous case histories.
Conclusions reported by the committee suggested that
the following appeared to be major causes for premature
failure of single-face mechanical seals in water pumps
not equipped with seal chambers:
- Improper installation of seal or pump
- Operating dry or partially dry
- Suspended solids in circulating water
- Excessively high water temperature
| File Size : | 1
file
, 170 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 10 |
| Published : | 03/01/1997 |
