Potable Water Expansion Tank Sizing

Potable water expansion tanks thermal expansion occurs when water is heated during non use periods the installation of a pressure reducing valve prv check valve or back flow preventer closes the water system leaving water with no room for expansion.

Potable water expansion tank sizing.

This expansion tank controls thermal expansion of water in open domestic hot water supply systems. The potable water expansion tank shall be installed in the cold water service pipe line on the supply side of the water heater or water storage tank. Customer support find a watts distributor. Customer support customer support.

Examples of one way devices include. Water heater tank capacity is 100 gallons. Sizing the therm x trol potable water expansion tank as water is heated thermal expansion takes place. As a rule of thumb a thermal expansion tank should be about 10 of the total water heater volume.

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. Backflow preventers. National standard plumbing code. 100 gallons x 10 10 gallon expansion tank.

500 gallons x 10 50 gallon expansion tank. The potable water expansion tank shall be installed in the cold water service pipe line on the supply side of the water heater or water storage tank. 10 5 7 requires backflow prevention to prevent. This small volume of water can cause rapid increases in system pressure if a backflow preventer or other one way device is installed without the proper thermal expansion tank.

Available in diaphragm partial acceptance bladder and full acceptance bladder designs these tanks range in size from 2 gallons 7 6 liters to 528 gallons 2 000 liters. Let s take some examples. It absorbs the increased volume of water generated by the hot water heating source. Find out more by visiting our website.

2 250 gallon water heaters 500 gallons total. Its pre pressurized steel tank uses an expansion membrane to prevent air water contact for long system life. Our sizing guide for potable water expansion tanks helps you find the right watts regulator or data potable tank.