Extruded Aluminum Anode Rod
The United States and Australia now use a large number of extruded aluminum anode rods to protect the water heater liner, so that the water inside the water heater is more odor-free and the service life is longer. The aluminum anode properties are activated by adding Zn, Sn, Ga, Bi, B and other elements to the aluminum anode, so that it can be used in fresh water.
Chemical Composition
|
Al |
Zn |
Sn |
BI |
Ga |
Fe |
Si |
Cd |
Cu |
Mn |
|
|
|
A420 (A5) |
Bal |
4.0-5.0 |
0.05-0.25 |
\ |
\ |
0.25 |
0.25 |
0.005 |
\ |
\ |
AS2239 |
|
3E |
Bal |
10.0-30.0 |
0.05-0.20 |
\ |
\ |
0.15 |
0.15 |
\ |
\ |
\ |
|
|
A8020 |
Bal |
≤0.01 |
0.20-0.25 |
0.15-0.2 |
0.012-0.1 |
0.15 |
0.1 |
\ |
0.005 |
0.005 |
B: 0.001-0.005 Mg: 0.03 max |
Electrochemical Performance
|
Open voltage (-V) |
Closed voltage (-V) |
Actual capacity (A.h/kg) min |
Efficiency (%) |
|
|
A5 |
0.98-1.28 |
0.88-1.18 |
≥1140 |
≥40 |
|
8020A |
1.38-1.58 |
1.28-1.50 |
≥1192 |
≥50 |
Product Size
|
|
||||
|
Anode Dia (mm) |
Core Dia (mm) |
Thread |
Unit Weight (g/cm) |
Length (mm) |
|
15.58 |
2.0 |
NPT BSP R |
5.14 |
76-400 |
|
17.1 |
3.0 |
6.20 |
76-766 |
|
|
19.05 |
3.4 |
8.19 |
76-1066 |
|
|
21.34 |
3.4 |
10.12 |
200-1350 |
|
The assembly of the aluminum anode rod has two connection methods: welding and pier pressing, and the pier pressing method is more commonly used, but to ensure that the pressure and the gap in the cap are filled, as shown in the figure.
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