Tank operating cycle
Provide wetted area, fill duration, water chemistry, temperature and expected coating condition.
SHIP AND OFFSHORE BALLAST TANKS
Ballast Tank Anodes for Marine Cathodic Protection
Aluminum and zinc sacrificial anodes supplied for ballast tanks, seawater compartments, newbuild vessels and drydock replacement projects.
Tank area, coating condition, ballast and empty cycles, water salinity and temperature, ventilation, mounting and hydrogen-management requirements must be reviewed in the approved CP design.
Drawing-based manufacture
Alloy and mass control
Mounting interface review
Project documents by scope
PRODUCT DEFINITION
Ballast Tank Anodes Selected for the Operating Cycle
Ballast tanks alternate between wet, dry and partially filled conditions, and their coating condition changes during service. Anode quantity, alloy, mass, location and mounting therefore require an approved calculation using tank area, coating breakdown, water conditions, operating cycle, current demand, design life and applicable vessel or class requirements.
Engineering Review Starts With Inputs
- ✓ Protected asset and environment
- ✓ Coating condition and exposed area
- ✓ Current demand and design life
- ✓ Alloy and electrochemical criteria
- ✓ Geometry and mounting interface
- ✓ Drawings, ITP and documentation
Project review
Confirm the Supply Basis Before Quotation
A ballast tank is not continuously immersed. The vessel CP design must reflect fill and empty cycles, coating breakdown, tank geometry and installation safety.
Anode layout and mass
Match alloy, net weight, quantity and placement to the approved tank calculation and access plan.
Mounting and safety
Define welding or bolting, clearances, coating interface and any ventilation or hydrogen review assigned by the vessel specification.
Project records
Agree model identification, chemistry, weight, dimensions and class or owner witness requirements.
PRODUCT RANGE
Available Configurations
Final construction follows the approved drawing, alloy specification, mass, attachment and quality plan.
Aluminum Ballast Tank Anodes
Available to the specified alloy, dimensions, net mass, attachment details, inspection scope and approved project drawing.
Zinc Ballast Tank Anodes
Available to the specified alloy, dimensions, net mass, attachment details, inspection scope and approved project drawing.
Weld-On Tank Anodes
Available to the specified alloy, dimensions, net mass, attachment details, inspection scope and approved project drawing.
Bar and Block Tank Anodes
Available to the specified alloy, dimensions, net mass, attachment details, inspection scope and approved project drawing.
TECHNICAL SPECIFICATION
Parameters to Confirm Before Purchase
Use project-specific values. A generic catalogue value is not a substitute for the approved cathodic-protection calculation or purchase specification.
| Tank data | Tank type, count, wetted surface area, internal geometry, access and location. |
|---|---|
| Coating condition | Coating system, age, breakdown factor and repair or newbuild status. |
| Operating cycle | Ballast frequency, fill duration, empty periods, salinity and temperature range. |
| Anode | Specified aluminum or zinc alloy, shape, net mass, dimensions and quantity. |
| Mounting and safety | Weld-on or bolt-on details, insert, clearance, paint interface, ventilation and hydrogen review. |
| Documents | Approved layout, alloy and inspection records, marking, packing, ITP and class documents by order scope. |
APPLICATIONS
Typical Protected Assets
Application labels help route the inquiry; the final anode selection still requires engineering inputs.
1
Ship ballast tanks
2
Newbuild vessels
3
Drydock replacement
4
Offshore vessel tanks
5
Commercial workboats
6
Seawater compartments
MANUFACTURING AND QA
Control the Drawing, Alloy, Mass and Interface
Manufacturing review should confirm alloy charge control, mould and core arrangement, insert preparation, casting condition, dimensions, net mass, electrical continuity, marking and packing.
Inspection and document scope must be agreed in the purchase order. Any potential, capacity, efficiency or service-life statement should identify the governing test or calculation conditions.
Available Documentation by Order Scope
• Approved production drawing
• Alloy or chemistry record
• Net-weight inspection
• Dimensional inspection
• Insert or cable continuity
• Marking and packing record
• ITP and witness records
• Project-specific certificates
Inside HELE
Inside Our Manufacturing & Quality System
Ballast-tank anode production should follow the approved alloy, mass and attachment drawing for each tank location. HELE can provide order-defined chemistry, weight, dimensional, continuity and packing records, with class or owner witnessing arranged when specified.
Alloy and casting
Confirm the approved alloy, core or insert, geometry and net sacrificial-alloy mass.
Electrical interface
Check continuity and the specified cable, weld or bolt attachment where the order requires it.
Inspection basis
Use the agreed methods and acceptance limits for chemistry, dimensions, weight and electrochemical evidence.
Order identification
Match markings, packing and release documents to the approved model and project schedule.
Final cathodic-protection design, installation and commissioning remain with the responsible project team unless expressly included in the contract.
FAQ
Technical and Procurement Questions
How is the correct anode type selected?+
Selection must start from the protected asset, electrolyte or soil, resistivity, temperature, coating condition, approved current demand, target life, governing specification and installation constraints.
Can HELE manufacture to a customer drawing?+
Yes. Manufacturability can be reviewed against the approved alloy, net mass, dimensions, insert or core, cable, mounting, tolerances, marking and inspection scope.
What performance values should be specified?+
State the required potential, capacity or efficiency together with the alloy standard, test method, electrolyte, temperature, duration and reference-electrode scale. Unqualified values are not directly comparable.
What determines service life?+
Service life depends on actual current demand, coating condition, environment, alloy capacity, utilization factor, net anode mass, anode resistance, placement and electrical continuity.
What quality documents are available?+
Depending on the purchase order, the document package can include approved drawings, alloy or chemistry records, weight and dimensional inspection, continuity checks, marking, packing and agreed ITP records.
What should I include in an RFQ?+
Provide tank count and surface area, coating system and breakdown, water salinity and temperature, ballast cycle, approved current demand, alloy and model, net mass, mounting layout, target life, vessel and class details, quantity and delivery date.
Inquiry
Request an Anode Supply Review
Send the tank arrangement, coating and operating-cycle inputs with the approved anode schedule. We can review casting, attachment and document requirements.
- ✓ Tank arrangement and operating cycle
- ✓ Alloy, anode mass and quantity
- ✓ Mounting and clearance drawing
- ✓ Class, inspection and delivery scope
Prefer email?
sales@heletitanium.comFactory & Engineering Center
Titanium Valley, Baoji City, Shaanxi Province, China