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21mm Aluminum Alloy 3-Segment Anode Rod 1000mm Bolt-Together Design for Commercial Boiler
Product Details:
| Place of Origin: | Hunan, China |
| Brand Name: | OEM |
| Certification: | ISO 9001:2015, ASTM B843 |
| Model Number: | HB-ALS21-1000 |
Payment & Shipping Terms:
| Minimum Order Quantity: | 10 Pieces |
|---|---|
| Price: | USD 10.00-19.00 / Piece |
| Packaging Details: | OEM branded color box with VCI moisture-resistant poly-bag, export-grade corrugated master carton |
| Delivery Time: | 5 working days for stock, 15-25 days for production |
| Payment Terms: | T/T,L/C,PayPal,Western Union |
| Supply Ability: | 50000 Pieces per Month |
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Detail Information |
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| Model: | HB-ALS21-1000 | Material: | Aluminum Alloy Al-Zn-In |
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| Rod Diameter: | Φ21mm | Rod Length: | 1000mm |
| Thread Specification: | 3/4" NPT | Rod Type: | Segmented |
| Target Application: | Commercial Boiler | Core Wire Material: | Galvanized Steel |
| Alloy Standard: | ASTM B843 / GB/T 4948 | Place Of Origin: | Hunan, China |
| Highlight: | Aluminum Anode Rod Replacement,21mm Aluminum Sacrificial Anode,Segmented Aluminum Anode Rod |
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Product Description
Model: HB-ALS21-1000
The HB-ALS21-1000 Aluminum Alloy Al-Zn-In segmented anode rod is engineered for superior cathodic protection in commercial boiler applications. This anode rod provides long-lasting corrosion prevention by sacrificially protecting the tank interior, heating elements, and internal components from galvanic corrosion, extending equipment service life significantly.
- Al-Zn-In alloy composition optimized for hard water environments
- Reduced scale buildup in water with hardness exceeding 150ppm
- Extended service life compared to magnesium in high-hardness conditions
- Current capacity exceeding 2400 Ah/kg
- Closed circuit potential -1.10V vs Ag/AgCl reference electrode
| Parameter | Specification |
|---|---|
| Model Number | HB-ALS21-1000 |
| Material | Aluminum Alloy Al-Zn-In |
| Chemical Composition | Al Bal., Zn 2.5-5.0%, In 0.015-0.04%, Si ≤ 0.10%, Fe ≤ 0.10% |
| Rod Diameter | Φ21mm |
| Rod Length | 1000mm |
| Thread Size | 3/4" NPT |
| Core Material | Galvanized Steel Wire |
| Open Circuit Potential | -1.05 to -1.12V (vs. Cu/CuSO4) |
| Current Efficiency | ≥ 85% |
| Current Capacity | ≥ 2400 Ah/kg |
| Rod Type | Segmented |
| Application | Commercial Boiler |
- Residential electric and gas water heaters
- Commercial and industrial hot water storage tanks
- Boiler feed water tanks and condensate return systems
- Heat exchanger and condenser water circuits
- Solar thermal water heating systems
Available under HB Brand in custom color-box packaging or OEM neutral packaging with your logo and specifications. Each rod is individually sealed in moisture-resistant VCI poly-bag to prevent oxidation during storage and transit.
Every HB-ALS21-1000 anode rod undergoes spectrographic alloy composition analysis, electrochemical performance testing (ASTM G97), dimensional inspection, thread gauge verification per ANSI/ASME B1.20.1, and visual inspection for surface defects and casting integrity.
HB is a trusted manufacturer based in Hunan, China, specializing in sacrificial anode production for over 15 years. Our vertically integrated facility ensures complete quality control from raw material smelting to finished product packaging. ISO 9001:2015 certified processes and rigorous batch testing guarantee consistent, reliable performance in every anode rod we ship.
