Potable Water Expansion Tank Purpose

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.

Potable water expansion tank purpose.

If water pressure gets to high it can damage valves in plumbing fixtures joints in supply pipes and the water heater itself. Potable water expansion tanks. When your water thermally expands a water heater expansion tank prevents unwanted increases in 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.

The system has a stainless steel sleeve to prevent corrosion something no other manufacturer offers. 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. We offer a range of expansion tanks for potable and non potable applications. 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.

These potable water expansion tanks feature a 100 butyl diaphragm and plastic liner to separate the system water from the tanks air precharge. To do their job these tanks must be properly located sized piped into the overall system and should be checked annually. Our sizing guide for potable water expansion tanks helps you find the right watts regulator or data potable tank. It is designed to handle that excess water that builds up.

Expansion tanks are designed to safely absorb the excess water created and prevent relief valves from triggering. Water expands by roughly 2 as it heats up from 50 f to 120 f. And the tanks are finished with appliance quality paint to help prevent external corrosion. The expansion tank is designed to handle the thermal expansion of water as it heats up in the water heater preventing excessive water pressure.

Reverse osmosis systems work slowly purifying water one drop at a time. 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. You install the expansion tank down. Inside the tank has a rubber diaphragm at around the mid point of the tank.

Find out more by visiting our website. When you turn on your kitchen faucet water is carried from the tank to your tap providing you with fresh water on demand. When water is heated it expands due to a phenomenon known as thermal expansion.