Chemistry and performance
Specify the zinc alloy and impurity limits; tie potential and capacity values to the project test conditions.
ZINC ANODE MANUFACTURER
Zinc Sacrificial Anodes for Ships, Tanks and Offshore Structures
Custom zinc alloy sacrificial anodes for hulls, ballast tanks, rudders, sea chests, offshore structures and selected industrial marine service.
Zinc anode selection must be based on specified alloy chemistry, potential, electrochemical capacity, net mass, attachment and the actual seawater or brackish-water environment.
Drawing-based manufacture
Alloy and mass control
Mounting interface review
Project documents by scope
PRODUCT DEFINITION
Zinc Anodes for Defined Marine Service Conditions
Zinc sacrificial anodes are electrically connected to steel and consumed preferentially to supply galvanic protection current. Their performance depends on alloy purity and chemistry, closed-circuit potential, capacity, temperature, salinity, current demand, coating condition, anode resistance, geometry and electrical continuity.
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
Zinc anodes should be evaluated against the specified water chemistry, operating temperature, coating condition and design current. Do not substitute a casting by shape alone.
Net zinc mass
Separate sacrificial-alloy mass from gross assembly weight, including the steel core or fixing hardware.
Mounting and continuity
Check cast-in core position, weld feet or bolt pattern and the required electrical path to the protected steel.
Identification and records
Agree inspection samples, chemistry, weight, dimensional and packing records for each model or batch.
PRODUCT RANGE
Available Configurations
Final construction follows the approved drawing, alloy specification, mass, attachment and quality plan.
Zinc Hull 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.
Zinc Tank Anodes
Available to the specified alloy, dimensions, net mass, attachment details, inspection scope and approved project drawing.
Zinc Block and Plate 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.
| Zinc alloy | Project-specified zinc alloy with controlled chemistry and agreed material documentation. |
|---|---|
| Potential and capacity | Declared only with test method, electrolyte, temperature, duration and reference-electrode scale. |
| Mass | Net zinc mass, gross assembly mass and permitted weight tolerance. |
| Core and mounting | Cast-in steel core, welding feet, strap, bolt-on plate, holes or brackets to approved drawings. |
| Shape and dimensions | Block, bar, plate, hull, tank or custom casting with controlled dimensions and surface condition. |
| Quality records | Chemical record, dimensional and weight inspection, continuity check, approved drawing, marking and packing. |
APPLICATIONS
Typical Protected Assets
Application labels help route the inquiry; the final anode selection still requires engineering inputs.
1
Ship hull protection
2
Rudder and propeller zones
3
Ballast tanks
4
Sea chests and seawater equipment
5
Harbor and jetty structures
6
Marine tank protection
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
Zinc anode production should follow the approved alloy and casting drawing. HELE can control insert placement, net alloy weight, surface condition and identification, with the agreed chemistry, dimensions and continuity records supplied to the project inspection plan.
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 the structure and service environment, seawater temperature or resistivity, coating condition, approved current demand, design life, zinc alloy, model or drawing, net mass, core or mounting details, class requirements, quantity and schedule.
Inquiry
Request an Anode Supply Review
Share the vessel or structure drawing, zinc alloy specification and anode schedule. We can review the casting and mounting interface against the documented supply scope.
- ✓ Protected zone and water conditions
- ✓ Zinc alloy and net mass per anode
- ✓ Core or mounting drawing
- ✓ Quantity and required inspection records
Prefer email?
sales@heletitanium.comFactory & Engineering Center
Titanium Valley, Baoji City, Shaanxi Province, China