Potable Water Expansion Tank Purpose

To do their job these tanks must be properly located sized piped into the overall system and should be checked annually.

Potable water expansion tank purpose.

A water storage tank collects water and stores it for later use and timely access. Reverse osmosis systems work slowly purifying water one drop at a time. So when the water pressure gets too high it will flow into your expansion tank instead of damaging your home s plumbing valves fixtures and joints and potentially causing a burst line with immeasurable damages and cost. 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. Water expands by roughly 2 as it heats up from 50 f to 120 f. If water pressure gets to high it can damage valves in plumbing fixtures joints in supply pipes and the water heater itself. We offer a range of expansion tanks for potable and non potable applications.

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 tanks. 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. Find out more by visiting our website.

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. Expansion tanks help reduce water hammer and help protect the plumbing system from stress and damage which leads to longer tank life. Inside the tank has a rubber diaphragm at around the mid point of the tank. These potable water expansion tanks feature a 100 butyl diaphragm and plastic liner to separate the system water from the tanks air precharge.

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. When water is heated it expands due to a phenomenon known as thermal expansion. The tank is partially filled with air whose compressibility cushions shock caused by water hammer and absorbs excess water pressure caused by thermal expansion.

And the tanks are finished with appliance quality paint to help prevent external corrosion. You install the expansion tank down. When your water thermally expands a water heater expansion tank prevents unwanted increases in pressure.