Domestic Water Heater Tank Lining 101
- What normally fails in a Domestic Water Heater?
- “The Lining”
- Why do manufacturers line their tanks?
- In order to separate and protect the steel from the corrosive aspects of heating and removing/replacing the water in domestic applications.
- Then why do manufacturers utilize sacrificial anode rods?
- Because they cannot guarantee complete coverage for their lining application. Discontinuities are acceptable by code.
- Why does PVI not use Anode Rods?
- Because they guarantee their Polyshield® or Nickelshield® lining to be void-free to ASTM D-5162 “Wet Electrode Standard”. PVI lining is applied after all fabrication has taken place.
- So is a tank with no required anode rod protection and a warranty of 10 to 20 years a beneficial feature for the owner?
- YES
- A tank with lining and sacrificial anode rod is the first level of protection. A tank with a lining that does not require an anode rod to protect the tank is the second level of protection.
What would the third level of protection be?
- NO LINING REQUIRED.
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AquaPLEX Engineered Duplex Allow From PVI
AquaPLEX Engineered Duplex Allow From PVI
