Vol.7, No2, 2007, pp. 129-132
 UDC 620.193.15: 697.433

CORROSION OF HOT WATER PIPELINES

Zoran Karastojković 1

Z. Janjušević 2

Zorica Kovačević 3

Vasilije Sarić, Slobodan Čubrilović 4

1) Viša tehnička škola, Belgrade

2) Institute for Technology of Nuclear and other Raw Minerals, Belgrade

3) Materials Testing Institute, Belgrade

4) JKP Beogradske toplane, Belgrade

Abstract

Different corrosion effects on radiator (hot water) pipes most frequently are the result of direct contact between hot water, operating fluid, and pipe material. Seldom, but also serious corrosion damage, can be caused by soil effect, eddy electric currents and/or the presence of electropositive particles, such as brass or some oligo elements. Impurities and non-metallic inclusions in material are possible causes of corrosion.

Corrosion processes in the material of hot water pipes are considered here as outside and inside of crevice in regard to location of occurrence and effect. The quality of hot water and hot water pipes are important for system life. Damages of hot water pipes, e.g. wall perforation, are directly related to corrosion effect from impurities in the radiator pipe steel, as has been found in several cases.

Keywords: radiator pipes, steel, hot water, corrosion processes

full article - only in Serbian (381 kB)