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Zinc Anode for Seawater Cooling System
Zinc Anode for Seawater Cooling System
Zinc alloy sacrificial anode is used for the metal anti-corrosion cathodic protection of the ships, water ballast tanks, mechanical equipment, marine engineering and port facilities, drilling platform, wharf, seawater condenser, pump in sea water medium as well as the pipes and cables in low resistivity soil.
Aluminum-Zinc-Cadmium series (ZAC Series) is a sacrificial anode casted by high purity zinc and aluminum, cadmium alloy.It is approved by CCS and its quality standards is in accordance with the GB/T4950-2002 standard. The zinc anode chemical composition conforms to the standard of US MIL-A-18001H and ASTM-B418 (Type 1). The anode used for pipelines is at the same time in line with SY/T0019-97 ‘Design Code for Sacrificial Anode Cathodic Protection of Buried Steel Pipeline’.
Specifications of Rectangle Type Zinc Anode for Sea Water Cooling System
|
Type |
Specification |
Iron Foot Size (mm) |
Net Weight (kg) |
Gross Weight (kg) |
|||
|
A×(B1+B2)×C |
D |
E |
F |
G |
|||
|
ZE-1 |
500×(115+135)×130 |
620 |
50 |
6 |
8~10 |
54.5 |
56.0 |
|
ZE-2 |
1000×(80+100)×80 |
1200 |
30 |
6 |
6~8 |
49.0 |
50.0 |
|
ZE-3 |
500×(105+135)×100 |
620 |
40 |
6 |
8~10 |
39.2 |
40.0 |
|
ZE-4 |
500×(80+100)×80 |
620 |
30 |
6 |
6~8 |
24.4 |
25.0 |
|
ZE-5 |
400×(110+120)×50 |
500 |
35 |
4 |
5~6 |
15.4 |
16.0 |
|
ZE-6 |
300×(140+160)×40 |
360 |
60 |
4 |
5~6 |
12.0 |
12.5 |
|
ZE-7 |
200×(90+110)×40 |
250 |
30 |
3 |
5~6 |
5.3 |
5.5 |
Specifications of Disc Type Zinc Anode for Seawater Cooling Water System
|
Type |
Specification |
Iron Foot Size (mm) |
Net Weight (kg) |
Gross Weight (kg) |
|||||
|
A×B |
C |
D |
E |
F |
H |
G |
|||
|
ZE-8 |
300×60 |
40 |
80 |
50 |
12 |
6~8 |
6 |
29.8 |
30.0 |
|
ZE-9 |
360×40 |
50 |
100 |
70 |
14 |
5~6 |
6 |
28.3 |
28.5 |
|
ZE-10 |
300×40 |
40 |
80 |
50 |
12 |
5~6 |
6 |
19.8 |
20.0 |
|
ZE-11 |
200×50 |
35 |
75 |
45 |
10 |
5~6 |
4 |
10.3 |
10.5 |
|
ZE-12 |
180×50 |
35 |
75 |
45 |
10 |
5~6 |
4 |
8.3 |
8.5 |
|
ZE-12 |
120×100 |
30 |
75 |
45 |
10 |
8~10 |
4 |
7.3 |
7.5 |
Chemical Composition (%)
|
Chemical Element |
Al |
Cd |
Impurity Element |
Zn |
|||
|
Fe |
Cu |
Pb |
Si |
||||
|
Content |
0.3~0.6 |
0.05~0.12 |
≤0.005 |
≤0.005 |
≤0.006 |
≤0.125 |
margin |
Electrochemical Properties
|
Electrochemical Properties |
Open Circuit Potential |
Working Potential |
Actual Capacitance |
Consumption Rate |
Current Efficiency |
Dissolution Performance |
|
In Sea Water |
-1.09~-1.05 |
-1.05~-1.08 |
≥780 |
≤11.23 |
≥95 |
Surface dissolution is even, while the corrosion products are easy to fall off |
|
In Soil |
≤-1.05 |
≤-1.03 |
≥530 |
≤17.25 |
≥65 |
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