1 Ensure expansion tank is sized properly for application (Figure 1). 2. Remove plastic cap ST-5, ST-8, ST only: Insert Turbulator into connector (optional). AMTROL ST (Therm-X-Trol) is a water heater expansion tank, designed for use in domestic hot water heating systems to eliminate the potential hazards of. Shop online for Therm-X-Trol model ST thermal expansion tank ( gallons) by Amtrol for domestic plumbing applications.

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Item will come in original packaging. Product information Technical Details. Write a customer review. The rep at the company was very helpful, so call if you have any questions. As the water is heated, thermal expansion occurs.

These might be good tanks, but I got two in a row with significant dents, The Amazon box looked good both times, but someone had played football with the inner, Amtrol box. Either your browser does not support JavaScript, or it aamtrol been disabled. Please call us for a suitable alternate product. Water Heaters Tankless Water Heaters.

Amazon Giveaway allows you to run promotional giveaways in order to create buzz, reward your audience, and attract new followers and customers. I even left the water pressure meter installed and tracked the peaks.

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Amtrol ST-12 Therm-X-Trol Non-ASME Thermal Expansion Tank

Also, I had a great experience with their customer service group. With tan installation of a backflow preventer, check valve or pressure reducing valve on the supply line, the water heater and the system piping form a closed plumbing system under pressure.

Expert Assistance Get expert assistance from our team. Thank you for your feedback. Buy the selected items together This item: Please make sure that you are posting in the form of a question. Bladder-type tanks contain a moving bladder, and requires either a separate pressure reducing valve as mentioned above or a fill-trol valve to maintain initial fill pressure of 12 psi or higher depending upon the requirements of your system.

Technical Details

AmazonGlobal Ship Orders Internationally. Item is in your Cart. It’s an optional accessory, but our municipal water supply has a ton of mineral content, so having the turbulator to create a flow of water through the tank to prevent et-12 up was something I wanted to do. As the system water temperature increases, the expanded water is absorbed by the tank. Roll over image to zoom in.

Amtrol ST Therm-X-Trol Thermal Expansion Tank

One person found this helpful. Specifications Expansion Tank Type There are two basic expansion tank types: This tank will not lose its air cushion unless the bladder becomes detached, at which point the tank would need to be replaced. We invite you to learn more about Fulfillment by Amazon. Learn more about Amazon Prime. Compare with similar items. East Dane Designer Men’s Fashion.


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Amazon’s Choice recommends highly rated, well-priced products available to ship immediately. It also provides an additional space in the system to accommodate the increased volume of water created by thermal expansion, returning it to the system when hot water delivery is demanded.

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Before this tank, it would go over the pound setting and cause the relief valve to drip expqnsion on the floor. Specifications Expansion Tank Type. Share Facebook Twitter Pinterest. Sorry, we’re having trouble showing recommendations right now.

Amtrol ST Thermal Expansion Tank – Water Heaters –

Ordering another and hoping it lasts. Intalled new water heater and the thermal pressure regulator leaked about 16 oz. Share your thoughts with other customers. Water pressure is tanj psi. Plain steel and bladder-type. A company rep from Amtrol recommended PRV did it’s job.

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