CONTACT US

T (713) 983-7117
E sales@stoprust.com

Tank Anodes

Sacrificial anodes for tanks and process vessels

image1UrlX = image2UrlX = image3UrlX =

Deepwater's aluminum and zinc tank anodes provide cathodic protection for any type of vessel.

Deepwater's galvanic anodes for the interior of tanks and process vessels are cast in either of two premium aluminum alloys (Deep7 and Deep10) or MIl SPec zinc alloys, for optimal performance in any conditions. Anodes are manufactured in several "standard" sizes. In addition to these, Deepwater can cast anodes to the exact specifications required. Please contact us for advice on optimizing an anode to suit your specific requirements.

 

 

Next section

Specifications

NOTES

  1. Standard process vessel anode dimensions and weights
  2. AssumesCurrent in 22 ohm-cm seawater versus cathode potential of -0.800V vs Ag/AgCl. sw.
  3. Current and life may vary significantly in elevated temperature brines
  4. Consult a CP specialist for guidance at elevated temperatures as performance de-rating will be needed.
  5. Exercise care with variable ballast tanks as dangerous volumes of hydrogen can be generated under certain conditions.
Anode typeNet weight (lb)Net weight (kg)D (mm)La (mm)Lc (mm)Current output * (amps)Life @ max current output (yrs) #
DWHT 37 17 76 1524   2.7 1.6
D-8x9 44 20 203 229 102 1.7 3.0
Ds-49 47 21 249   330 1.6 3.3
Next section

Anode chemistry

Deep 7Deep 10
Iron (Fe) 0.07 max Iron (Fe) 0.10 max
Silicon (Si) 0.10 max Silicon (Si) 0.10 max
Copper (Cu) 0.003 max Copper (Cu) 0.006 max
Zinc (Zn) 4.75 - 5.25 Zinc (Zn) 4.75 - 5.75
Indium (In) 0.015 - 0.025 Indium (In) 0.010 - 0.020
Titanium (Ti) 0.025 max Titanium (Ti) 0.025 max
Others (each) 0.02 max Others (each) 0.02 max
Aluminum (Al) remainder Aluminum (Al) remainder
Next section

Electrochemical / Physical properties

Alloy typeDeep 7Deep 10
Open circuit potential (-) 1.08 V vs Ag/AgCl sw. (-) 1.08 V vs Ag/AgCl sw.
Closed circuit potential(1) (-) 1.05 V vs Ag/AgCl sw, (-) 1.05 V vs Ag/AgCl sw,
Seawater capacity @25C 1100 A-Hr/lb. (2420 A-Hr/Kg.) 1100 A-Hr/lb. (2420 A-Hr/Kg.)
Seawater capacity @ 5C 1100 A-Hr/lb. (2420 A-Hr/Kg.) Variable (2)
Seabed mud capacity (3) 950 A-Hr/lb (2090 A-hr/Kg.) 950 A-Hr/lb (2090 A-hr/Kg.)
Seabed mud capacity @ 5C 950 A-Hr/lb (2090 A-hr/Kg.) Variable (2)
Alloy density 0.098 lb/in3 (2.71 gm/cm3) 0.098 lb/in3 (2.71 gm/cm3)
Cost ratio Low Iron (Fe) Aluminum
            (Al) Ingot < 0.05 Fe
Normal Grade Al Sows
Raw material and conversion 1.10 1.00
Recommended environment Any ocean. any depth. any temperature. Any tropical ocean < 600 fsw (180 Msw) with mean water temperature higher than 45 F (7C).