RahavardZob has developed aluminum anodes over a long period during which their excellent performance characteristics have been widely recognized . Evidence oh this can be found in the number of galvanic based systems installed on offshore structures.

These features allow substantial savings to be made , both in the cost of materials and in the cost of installing cathodic protection RahavardZob `s standard range of alloys is detailed in the following table .

Elements	Fe(max)	Si(max)	Cu(max)	Zn	In	All other each (max)	Aluminum
Composition % by weight	0.10	0.10	0.006	3.0-5.0	0.02-0.05	0.02	Remainder

Specification of aluminum anodes comply NACE RP0387 , DNVRPB401 and IPS-M-TP-750/6 .

Electrical properties :

Nominal electrochemical capacity :2700 AH/Kg

Nominal solution potential :-1100 mV

Density (max) :2710 Kg/m³

Consumption rate (in sea water):3.5 Kg/A year

Stand offanodes :

Stand-off anodes are designed so that they have a minimum distance from the steel surface , they are protecting of 300mm, to ensure uniform current distribution to the surface . The life period of a system is not less than five years . The anode core will support the anode to maintain the anode shape during later stages of the anode`s life .

Anode No.	A	B	C	D	E	Nett Wt.	GrossWt.
AS330	2425	114	255	240	305	330	382
AS360	2440	114	274	230	345	360	415
AS565	3050	114	280	280	305	565	626
AS049	1875	50	100	98	200	49	52
AS106	2275	50	178	100	395	106	123
AS108	1520	60	165	165	150	108	118
AS108	700	60	255	240	150	108	117
AS140	1200	89	215	210	490	140	166
AS212	1560	114	250	215	305	212	244
AS216	1500	50	250	220	150	216	233
AS324	19500	89	288	220	200	324	349
AS385	2780	114	230	230	305	385	433

Bracelet anodes

The overall dimension of the anodes are usually manufactured to coincide with the overall dimension of the pipe , but f this is not possible they are manufactured with a taper to allow for their movement .

Half shell type bracelet anodes

Anode No.	Type No.	A	B	C	Nett Wt.
AH009	2	321	209	180	.3
AH024	1	320	220	304	24.75
AH030	1	324	222	394	30.0
AH036	1	378	276	394	36.30
AH042	1	428	327	394	42.0
AH063	1	425	325	500	63.0
AH082	1	717	613	406	82.0
AH160	1	748	622	525	160.0
AH181	2	813	613	362	181.0
AH181	2	688	388	326	181.0

Type 1

Type 2

Segmented bracelet anodes

type 1

type 2

Anode No.	Type No .	dia	A	B	C	Nett Wt.	GrossWt.
AB038	1	---	635	380	117	3.8	4.8
AB065	1	---	635	380	117	6.5	7.5
AB077	1	---	635	380	117	7.7	8.7
AB080	2	465	405	265	178	8.0	9.0
AB090	1	---	635	380	117	9.0	10.0
AB096	1	---	635	380	17	9.6	10.6
AB096`	1	515	570	420	211	9.6	10.6
AB135	2	624	580	360	254	13.5	14.5
AB135`	2	624	388	168	295	13.5	14.5
AB135``	2	624	439	219	280	13.5	14.5
AB143	1	---	635	380	117	14.3	15.3
AB150	1	---	635	380	117	15.0	16.0
AB170	1	---	635	380	117	17.0	18.0

Flush ounted (Hull) anodes :

Hull / flush mounted aluminum anodes are used to complement the coating t areas of exposed steel prolonging the life of the coating at areas of exposed steel prolonging the life of the coating .

AnodeNo .	A	B	C	D	E	F	G	Nett Wt.	Gross Wt.
AF037	1867	---	100	75	6	50	1475	37	39.0
AF053	1525	75	112	100	12	75	---	53	60.0
AF065	1828	---	200	75	6	40	1270	65	71.0
AF152	2440	---	162	145	10	60	1230	152	166.0

AnodeNo .	A	B	C	D	E	F	Nett Wt.	Gross Wt.
AF012	300	200	95	30	25	6	1.2	1.4
AF026	350	270	150	30	40	6	2.6	3.2
AF045	530	395	150	30	40	6	4.5	5.2
AF086	650	550	127	50	40	6	8.6	9.8
AF101	650	550	130	65	50	6	10.1	11.6
AF126	635	635	130	75	50	6	12.6	14.1

AnodeNo .	A	B	C	D	E	F	Nett Wt.	Gross Wt.
AF141	1015	915	130	50	50	6	14.1	16.0
AF210	1015	915	130	75	50	6	21.0	24.0

AnodeNo .	A	B	C	D	E	F	Nett Wt.	Gross Wt.
AF027	350	270	150	32	40	6	2.73	3.33
AF043	530	400	150

Rahavard Zob Iranian