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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We invite you to learn more about Fulfillment by Amazon. Please make sure that you are posting in the form of a question. With modern plumbing codes mandating backflow prevention, thermal expansion can cause pressure buildup in domestic water systems. When demand is put upon a potable water system, hot water is drawn from the water heater.
Cold water from the supply line enters the water heater to replenish it. The colder water is heated to replace the hot water used. With the 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. As the water is heated, thermal expansion occurs. Pressure increases until the relief valve opens and the expanded water “spills” from the water heater.
This “spillage” results in wasted BTU’s and a potential safety hazard for the homeowner. 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. Share Facebook Twitter Pinterest. Loading recommendations for this item Item is in your Cart. View Cart Proceed to checkout.
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Amtrol ST Therm-X-Trol Thermal Expansion Tank
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Amtrol ST-12 Therm-X-Trol Non-ASME Thermal Expansion Tank
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Amtrol ST Thermal Expansion Tank – Water Heaters –
See all customer images. Read reviews that mention water heater expansion tank water pressure easy to install hot water relief valve air pressure water heaters gallon water xt-12 at psi water heater expansion tank installed installation amtrol model check st- plumbing tanks larger.
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There was a problem filtering reviews right now. The product works great, I installed it a couple weeks back and it has held my water system pressure steady at 70 psi ever since. Also, I had a great experience with their customer service group. Expandion an optional accessory, but our municipal water supply has a ton of mineral content, so amfrol the turbulator to create a flow of water through the tank to prevent build up was something I wanted to do.
I emailed customer support and got a very quick reply from Steven A, who then sent me rxpansion new turbulator via overnight shipping so that I could get my tank installed over the weekend as planned. I don’t have much experience with plumbing repair but as a DIY project this was not bad at all.
I’m very pleased with the product and the customer service. One person found this helpful. Used on an 80 gallon hot water tank that was over pressurizing when the water company upgraded my tap with a check valve. Our water pressure stays around 85psi. Before this tank, it would go over the pound setting and cause the relief valve to drip water on the floor.
I mounted a T at the top of the tank where the cold goes in. Placed the tank on top of the T, and the cold on the side of the T. It works great, pressure stays aroundno more water in my floor. New water heater installed. No problems for 2 weeks. Water pressure was at PSI and peaked at over night. PRV did it’s job. Installed a water pressure regulator to bring the PSI down to Somehow, it still peaked causing a leak.
I had a problem with water expansion. Installed this Amtrol expansion tank and problem solved. I even left the water pressure meter installed and tracked the peaks. It never peaked over 50 PSI. Good product, easy to install. When I called GE about the problem, I was asked if I had a water pressure regulator and expansion tank. As other reviewers have indicated, was delivered with a dent toward the top of the cylinder above the AMTROL lettering.
Whoever ships this, be more careful. After installation, my weeping Pressure Relief Valve was solved immediately. I upgraded from a 2 gallon to 5 gallon units. A company rep from Amtrol recommended The rep at the company was very helpful, so call if you have any questions.
It also has a turbolator device at the water inlet which helps control sediment. A quality tank, except for the dent. Always check air pressure at least once a year and make sure before installation that you match your house water pressure with the preset pressure of the tank. 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.
They need to get this fixed. Im shopping for a different brand now. It was easy to set the initial pressure and easy to install. Past that, I’ve only had it installed about 2 months, so I should hope nothing’s gone wrong in such a short time!