REMKO EFS 35, Руководство по сборке и эксплуатации

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Plate material Soldering mate-
rial
Water content
Concentra-
tion (mg/l or
ppm)
Time limits
for analysis
AISI
304
AISI
316
254
SMO
Cop
per
Nick
el
Stai
nles
s
Hydrogen sulphide (H
2
S) < 0.05 No limit + + + + +
> 0.05 + + 0/- + +
Free (aggressive)
Carbon dioxide (CO
2
)
< 5 No limit + + + + + +
5-20 + + + 0 + +
> 20 + + + - + +
Overall hardness (°dH) 4.0-8.5 No limit + + + + + +
Nitrate
1)
(NO
3
-
)
< 100 No limit + + + + + +
> 100 + + + 0 + +
Iron
3)
(Fe)
< 0.2 No limit + + + + + +
> 0.2 + + + 0 + +
Aluminium (Al) < 0.2 No limit + + + + + +
> 0.2 + + + 0 + +
Manganese
3)
(Mn)
< 0.1 No limit + + + + + +
> 0.1 + + + 0 + +
1) Sulphates and nitrates act as inhibitors for pitting corrosion caused by chlorides in pH-neutral environ-
ments
2) Generally, a low pH (below 6) increases the risk of corrosion and a high pH (over 7.5) reduces the risk of
corrosion
3) Fe 3+ and Mn 4+ are strong oxidisers and can increase the risk of local corrosion in stainless steels
SiO
2
over 150 ppm increases the risk of calcification
Chloride content
Highest temperature
60 °C 80 °C 120 °C 130 °C
= 10 ppm SS 304 SS 304 SS 304 SS 316
= 25 ppm SS 304 SS 304 SS 316 SS 316
= 50 ppm SS 304 SS 316 SS 316 Ti / 254 SMO
= 80 ppm SS 316 SS 316 SS 316 Ti / 254 SMO
= 150 ppm SS 316 SS 316 Ti / 254 SMO Ti / 254 SMO
= 300 ppm SS 316 Ti / 254 SMO Ti / 254 SMO Ti / 254 SMO
> 300 ppm Ti / 254 SMO Ti / 254 SMO Ti / 254 SMO Ti / 254 SMO
REMKO fresh water station
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