Water Heater Thermal Expansion Tank Sizing

If the inlet water pressure is higher than 38 psi the expansion tank s air pressure must be adjusted to match that pressure but must not be higher than 80 psi.

Water heater thermal expansion tank sizing.

Sizing expansion tanks for water heaters can be a complex engineering challenge but residential expansion tank sizing has been simplified through the use of calculators. Our sizing guide for potable water expansion tanks helps you find the right watts regulator or data potable tank. Pmc sizing chart for residential water heaters water heater capacity in gallons inletwater pressure 30 40 50 66 82 100. Hot water heater expansion tanks are small but there available in several sizes.

Thermal expansion tank sizing residential commercial. Determining incoming or supply water pressure. There are two important considerations to make when sizing an expansion tank. The incoming or supply water pressure and the volume of the storage tank.

Find out more by visiting our website. Reduced and water drains out of the expansion tank back into the system. Expansion tanks are pre charged with a 38 psi air charge.