Table of Contents
Advertisement
6.9.2
Domestic hot water for copper brazed plate heat
exchangers
Water containing
Alkalinity (HCO
)
3
2
Sulfate (SO
)
4
2
HCO
/SO
3
4
Electrolytic conductivity
(μS/cm)
pH
Ammonia (NH
)
3
Chlorides (Cl)
Free Chlorides (Cl
)
2
Hydrogen sulfide (H
S)
2
Free (aggressive) carbon
dioxide (CO
)
2
Total hardness (°dH)
Nitrate (NO
)
3
Iron (Fe)
Aluminium (Al)
Manganese (Mn)
Table 30
[+]
Good resistance under normal conditions
[o]
Corrosion problem possible
[-]
Use is not recommended
6 720 808 928 (2017/06)
Concentration
(mg/l or ppm) AISI 316 Copper
<70
+
o
70-300
+
+
>300
+
o/+
<70
+
+
70-300
+
o/-
>300
+
-
>1
+
+
<1
+
o/-
<10
+
o
10-500
+
+
>500
+
o
<6.0
o
o
6.0-7.5
+
o
7.5-9.0
+
+
>9
+
o
<2
+
+
2-20
+
o
>20
+
o
<300
+
+
>300
-
o/+
<1
+
+
1-5
-
o
>5
-
o/-
<0.05
+
+
>0.05
+
o/-
<5
+
+
5-20
+
o
>20
+
-
<4
+
-
4-20
+
+
20-30
+
o
>30
+
-
<100
+
+
>100
+
o
<0.2
+
+
>0.2
+
o
<0.2
+
+
>0.2
+
o
<0.1
+
+
>0.1
+
o
Commissioning
41
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
