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Zn
|
AL
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Cd
|
Fe
|
Pb
|
Cu
|
|
Balance
|
0.1-0.5
|
0.02-0.07
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0.005 max
|
0.006 max
|
0.005max
|
Electrochemical properties:
|
Environment
|
Open voltage(-V)
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Closed voltage(-V)
|
Actual capacitance A.h/kg
|
Efficiency (%)
|
Solution appearance
|
|
Sea water
|
1.05-1.09
|
1.00-1.05
|
 780 min |
95 min |
Solute uniformly
|
|
Soil
|
1.05 |
1.03 |
530 |
17.25 |
|
Size Specification:
CORRTECH supplies Zn anodes in different shapes according to customer's request. There are hull, condenser, tank anodes and bracelet shapes anodes. The anodes also can be made in strings. Following are some of the anodes available:
1. Zn anodes for vessel
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Type
|
AZ-V01
|
AZ-V02
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AZ-V03
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AZ-V04
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AZ-V05
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AZ-V06
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AZ-V07
|
AZ-V08
|
|
Size
|
390x120x50
|
500x150x40
|
300x150x35
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400x100x35
|
300x150x30
|
320x100x40
|
250x100x35
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200x100x35
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|
Weight
|
15.6
|
13.6
|
11
|
9
|
8.6
|
8
|
5.6
|
4
|
|
Current
|
610
|
680
|
540
|
540
|
540
|
400
|
410
|
370
|
2. Zn anodes for ballast tank
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Type
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AZ-B01
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AZ-B02
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AZ-B03
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AZ-B04
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AZ-B05
|
AZ-B06
|
|
Size
|
1500x(65+75)x70
|
100x(58.5+78.5)x68
|
800x(56+74)x65
|
1143x(48+54)x51
|
800x(58+64)x60
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650x(58+64)x70
|
|
Weight
|
52.8
|
33
|
25
|
22
|
22
|
18
|
3. Zn anodes for oil tank
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Type
|
AZ-T01
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AZ-T02
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AZ-T03
|
AZ-T04
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AZ-T05
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AZ-T06
|
|
Size
|
500x(105+135)x100
|
Dia300 x80
|
390x120x65
|
Dia250x60
|
Dia200x50
|
350x(60+90)x75
|
|
Weight
|
40
|
40
|
20
|
20
|
10
|
14
|
4. Zn anodes for pipeline in seawater
|
Type
|
AZ-P01
|
AZ-P02
|
AZ-03
|
AZ-04
|
|
Size
|
622x51x420x38
|
530x46x464x38
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503x51x400x51
|
371x51x562x51
|
|
Weight
|
261
|
218
|
191
|
184
|
Zn anodes for pipeline in seawater are all in bracelet shape.
Zinc Alloy Cast Anode
|
Lead (max)
|
0.006%
|
|
Iron (max)
|
0.005%
|
|
Cadmium
|
0-025-0.07%
|
|
Copper (max)
|
0.005%
|
|
Aluminum
|
0.1-0.55%
|
|
Zinc
|
Remainder
|
|
Potential
|
-1.10 Volts
|
|
Efficiency
|
95%
|
|
Ampere hours / lb
|
355
|
Specification of the Zinc anode for buried pipeline
|
Spec.(mm)
|
Size of Iron Leg （mm）
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N.W.(kg)
|
G.W.(kg)
|
||||
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A×(B1+B2)×C
|
D
|
E
|
F
|
G
|
|||
|
KTZN-P-9
|
600×(40+48)×45
|
360
|
100
|
12
|
15
|
9
|
8.7
|
|
KTZN-P-12.5
|
600×(52+56)×54
|
460
|
100
|
12
|
15
|
12.5
|
12.0
|
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KTZN-P-15
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550×(58+64)×60
|
400
|
100
|
12
|
20
|
15.0
|
14.6
|
|
KTZN-P-18
|
650×(58+64)×60
|
400
|
100
|
12
|
20
|
18.0
|
17.6
|
|
KTZN-P-22
|
800×(55+64)×60
|
500
|
100
|
12
|
20
|
22.0
|
21.5
|
|
KTZN-P-25
|
800×(60+80)×65
|
600
|
100
|
12
|
25
|
25.0
|
24.5
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Zinc Ribbon Anode
zinc ribbon anode is an ideal primary or supplemental cathodic protection system. It can also be used as a temporary system prior to the installation of an impressed current system.Zinc ribbon anodes are produced according to ASTM-B-418 type I and type II alloy standard in the shape of diamond.
Zinc ribbon anode can be used in fresh water, sea water environments, also can be used in underground structures.
Chemical composition:
Zinc ribbon anode can be used in fresh water, sea water environments, also can be used in underground structures.
Chemical composition:
|
|
AL %
|
Cd %
|
Fe %
|
Pb %
|
Cu %
|
Zn
|
|
ASTM B-418 type I
|
0.1-0.5
|
0.02-0.07
|
0.005 max
|
0.006 max
|
0.006 max
|
Balance
|
|
ASTM B-418 type II
|
0.005 max
|
0.003 max
|
0.0014 max
|
0.003 max
|
0.002 max
|
Balance
|
Electrochemical properties:
|
|
Open Voltage (-V)
|
Closed Voltage (-V)
|
Capacity A.h/kg
|
Efficiency
|
|
ASTM B-418 type I
|
1.05 min
|
1.00 min
|
353
|
95%
|
|
ASTM B-418 type II
|
1.10 min
|
1.05 min
|
335
|
90%
|
General Specification
|
Type
|
|
|
|
|
|
|
Cross section
|
mm
|
25.40x31.75
|
15.88x22.22
|
12.7x14.29
|
8.73x11.91
|
|
Weight
|
g/cm
|
35.72
|
17.82
|
8.93
|
3.72
|
|
Standard coil length
|
mm
|
30.5
|
61
|
152.5,305,1098
|
305
|
1. All dimensions and weights are nominal.
2. Wire core is galvanized steel.
3. Longer coil sizes are available on special order. Standard coil lengths of 1000' and 3600' are also available.
Zinc Grounding Rod
Zinc grounding rod is mainly used in the grounding system of petrochemical, natural gas, transformer substation, railway and civil aviation facilities. There are two typical applications of the rod:
1. As a substitution for copper or copper coated power grounding rods in order to avoid bimetallic corrosion of associated ferrous structures.
2. In mitigation of voltages which may be introduced in pipelines by adjacent overhead AC power lines. Pipelines may be ground bed via Zinc electrodes without attendant disruption of pipeline cathodic protection
1. As a substitution for copper or copper coated power grounding rods in order to avoid bimetallic corrosion of associated ferrous structures.
2. In mitigation of voltages which may be introduced in pipelines by adjacent overhead AC power lines. Pipelines may be ground bed via Zinc electrodes without attendant disruption of pipeline cathodic protection
General Specification
|
Dimensions(mm)
|
Weight
(g/cm)
|
|
|
OD(mm)
|
ID(mm)
|
|
|
13.97
|
2.0
|
11.01
|
|
19.05
|
3.4
|
20.39
|
|
21.33
|
3.4
|
25.60
|
|
26.67
|
3.4
|
39.89
|
|
33.40
|
3.4
|
62.52
|
|
39.65
|
4.8
|
88.12
|
|
51.40
|
4.8
|
148.11
|
The length of the anode can be made according to customer's request.
Zinc grounding cell consist of two rod anodes which are separated by insulated spacers it prevents the system to be destroyed by strong current by welding the cell on the side of the insulated setting.
Chemical compositions
|
The Zinc used in CORRTECH anodes is within the specification laid down by US Mil-A-18001H
|
||
|
1
|
Aluminum
|
0.15-0.30%
|
|
2
|
Cadmium
|
0.04-0.06%
|
|
3
|
Iron
|
0.002% Max
|
|
4
|
Tin
|
0.001% Max
|
|
5
|
Copper
|
0.001% Max
|
|
6
|
Lead
|
0.004% Max
|
|
7
|
Silicon
|
0.100% Max
|
|
8
|
Zinc
|
Remainder
|
Electrochemical Properties
|
1
|
Efficiency
|
95%
|
|
2
|
Potential
|
-1.10V (Cu/CuSO4)
|
|
3
|
Capacity
|
780Ampere hours per kilogram
|
|
4
|
Consumption
|
11.2 kg per Ampere year
|
General Specification
|
NO.
|
Type
|
Spec.
|
|
1
|
KTDC-600
|
With two 40x40x600 Zn Anode
|
|
2
|
KTDC-800
|
With two 40x40x800 Zn Anode
|
|
3
|
KTDC-1500
|
With two 40x40x1500 Zn Anode
|
|
4
|
KTDC-1500
|
With four 40x40x1500 Zn Anode
|
