The Thermal Expansion Relief Valve can replace a water heater expansion tank because it functions similarly. Both products absorb the excess pressure in the plumbing system created by thermal expansion. As plumbers know, the expansion tank equalizes pressure throughout the plumbing system by providing a space for hot water to flow into. Without an expansion tank, pressure would be distributed to the entire plumbing system, straining it and decreasing its lifespan.
Like an expansion tank, the new Thermal Expansion Relief Valve also takes the load off your pipes by:
Common Expansion Tank Problems
While expansion tanks are required by code in most closed-loop water heater systems, they have a reputation for failing. Common expansion tank issues include:
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