Magnesium Water Heater Anode
Water is highly solvent and corrosive which is potentially damaging to the surface metals within a water heater, boiler or storage tank and these components are expensive and often complicated to replace.
Regular water heater maintenance is a worthwhile investment. When the anode rod has rusted away, the water heater's tank may begin to rust, which will cause the water heater to fail, and you'll end up paying hundreds for a brand new water heater. We strongly recommend that you should at least have your anode checked every few years after your Product Guarantee period of 2 years.
Water heater anode rod is typically made of either aluminum, magnesium or Zinc. They are referred to as“sacrificial anode rod". Hot water heater sacrificial anodes are installed in order to protect the water tank against corrosion. The anode sacrifices its metal content to protect the hot water heater against corrosion and leakage. This extends the lifetime of water heaters and water tanks.
Chemical Composition
|
Standard |
ASTM B843 - AZ31B |
|
|
Chemical Composition |
Aluminum |
2.50-3.50% |
|
Manganese |
0.20-1.00% |
|
|
Zinc |
0.60-1.40% |
|
|
Calcium |
0.04% Max |
|
|
Silicon |
0.10% Max |
|
|
Copper |
0.01% Max |
|
|
Nickel |
0.001% Max |
|
|
Fe |
0.005% Max |
|
|
Sn |
- - |
|
|
Other purity (each) |
- - |
|
|
Total Purity |
0.30% Max |
|
|
Remaining |
Magnesium |
|
Specification
|
Part No. |
Diameter (mm) |
Core (mm) |
Length (mm) |
Steel Cap |
|
WHMR12 |
12.7 |
3.4 |
As request |
1/2” NPT |
|
WHMR17 |
17.0 |
3.4 |
3/4” NPT |
|
|
WHMR21 |
21.3 |
3.4 |
3/4” NPT |
|
|
WHMR22 |
22.9 |
3.4 |
3/4” NPT |
|
|
Note: Anode size and cap type can be customized |
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