Water Heater Thermal Expansion Tank Sizing

When water is heated inside your water heater it expands.

Water heater thermal expansion tank sizing. Thermal expansion tank sizing. Please contact the factory for sizing information. 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. The incoming or supply water pressure and the volume of the storage tank.

Our sizing guide for potable water expansion tanks helps you find the right watts regulator or data potable tank. We re dedicated to our customers. Precharge is the air pressure on the air side of the tank bladder. New or larger expansion tanks may be needed due to pressure reducing valves check valves and backflow preventers added to the community s water system.

Find out more by visiting our website. Thermal expansion tank sizing residential commercial. Determining incoming or supply water pressure. Hot water heater expansion tanks are small but there available in several sizes.

Domestic hot water volume. Expansion tank size calculator. To accommodate the thermal expansion required for higher temperature and or higher pressure systems multiple tanks may be used. Hydronic expansion tank sizing.

Amtrol products are made in the usa at our iso registered facilities by american workers dedicated to producing the highest quality expansion tanks in the world. Pmc sizing chart for residential water heaters water heater capacity in gallons inletwater pressure 30 40 50 66 82 100. For complex tank sizing for multiple apartments condos please contact the factory for sizing information. Or check out our support center.

The way that it works is this. There are two important considerations to make when sizing an expansion tank. 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. Free shipping on orders over 99.

Approx city pressure. Free slots for orders with water heaters boilers and other bulky items only available in select areas of. Reduced and water drains out of the expansion tank back into the system. This process is called thermal expansion and it can cause strain on your plumbing system.

Expansion tanks are pre charged with a 38 psi air charge. If your water heater holds 50 gallons of cold water it will expand to about 52 gallons when it is heated.