Potable water expansion tankpurpose

If you have any questions about our return policy, please contact us before purchase. This will also help to ensure you purchase the correct product that suits your requirements.

potable water expansion tankplt-5

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You may receive a refund or credit of equal amount, less the restocking fee if applicable and any other deductions that are relevant.

Remember, this is just a rule of thumb. In addition to water heater volume, an engineer will consider other factors when sizing and selecting a thermal expansion tank, such as entering and leaving water temperatures and minimum and maximum pressures. The expansion volume may then be calculated and a tank selected based on acceptance volume and overall volume. In most cases, the engineered expansion tank size will be smaller than the 10% of the water heater volume, but, for budgeting/planning purposes, this estimate will get you in the right ballpark.

Potable water expansion tankreplacement

Wattspotable Water Expansion tank

Due to the nature of the products we sell, a strict return policy is in place. We work with food grade certified materials that must be un-opened and un-used as to be able to be re-sold.

As a rule of thumb, a thermal expansion tank should be about 10% of the total water heater volume. Let’s take some examples:

David Swinson has worked for Heat Transfer Sales for over 35 years. His knowledge of HVAC and plumbing equipment is vast.

Solid STAINLESS STEEL designThis Reverse Osmosis Storage Tank has a massive 76Lt storage capacity!NSF Tested & Certified by NSF International under NSF/ANSI standard 58 for material and structural integrity.The stainless steel design makes this a durable, long lasting option for your water storage needs.This tank is suitable for semi-commercial use in places like Kitchens, Reasturants or any other situation that requires a large amount of water on demand.Can be used in conjunction with small undersink Reverse Osmosis systems.Price does not include any fittings or valves, please contact us to organise the appropriate fittings you require for your intended use.

Potable water expansion tankinstallation

When you look a water heater in a large building or even a home, you may notice a much smaller tank close by. That small tank is a thermal expansion tank. An expansion tank in this application is a vessel design to accept additional system volume resulting from heating water. Water is incompressible and, when it is heated, it expands. If this happens in a system with a fixed volume of pipes and equipment, you will quickly discover the weakest point in the system as water begins to spray through it. (Hopefully, it is the pressure relief valve releasing water!)

Potable water expansion tankleaking

If you have questions about equipment size, water heaters or expansion tanks, you should talk to your manufacturing representative to ensure that you’re selecting the best equipment sized correctly for your application.

To protect the water heater, pipes, and other system components from excessive pressure when heating water, an expansion tank is added. A simple device, it is nothing more than a tank with a bladder (thick balloon) inside. The space between the bladder and the inner wall of the tank is pre-charged with air to closely match the neutral pressure of the system BEFORE the water is heated. Then, when heat is applied and the pressure goes up, the expanded water volume flows inside the bladder. The air outside the bladder compresses against the tank walls, providing the cushion needed to protect the rest of the system.

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We are proponents of sustainable and efficient hydronic heating and cooling building solutions, which are at the heart of commercial green building.