Potable Water Expansion Tank Purpose

Pressurized air goes below the diaphragm in the bottom half of the tank and water flows in and out of the top half of the tank.

Potable water expansion tank purpose.

The expansion tank is designed to handle the thermal expansion of water as it heats up in the water heater preventing excessive water pressure. Inside the tank has a rubber diaphragm at around the mid point of the tank. Our sizing guide for potable water expansion tanks helps you find the right watts regulator or data potable tank. The system has a stainless steel sleeve to prevent corrosion something no other manufacturer offers.

Find out more by visiting our website. And the tanks are finished with appliance quality paint to help prevent external corrosion. An expansion tank or expansion vessel is a small tank used to protect closed water heating systems and domestic hot water systems from excessive pressure. The tank is partially filled with air whose compressibility cushions shock caused by water hammer and absorbs excess water pressure caused by thermal expansion.

When your water thermally expands a water heater expansion tank prevents unwanted increases in pressure. When you turn on your kitchen faucet water is carried from the tank to your tap providing you with fresh water on demand. These potable water expansion tanks feature a 100 butyl diaphragm and plastic liner to separate the system water from the tanks air precharge. Potable water expansion tanks.

When water is heated it expands due to a phenomenon known as thermal expansion. To protect the water heater pipes and other system components from excessive pressure when heating water an expansion tank is added to a water heater. Expansion tanks are designed to safely absorb the excess water created and prevent relief valves from triggering. The expansion tank s purpose is to protect your house s hot water system from excessive pressure which can cause damage to fixtures your water heater lines and or fittings.

It is designed to handle that excess water that builds up. If water pressure gets to high it can damage valves in plumbing fixtures joints in supply pipes and the water heater itself. To do their job these tanks must be properly located sized piped into the overall system and should be checked annually. Expansion tanks help reduce water hammer and help protect the plumbing system from stress and damage which leads to longer tank life.

We offer a range of expansion tanks for potable and non potable applications. Water expands by roughly 2 as it heats up from 50 f to 120 f. You install the expansion tank down.