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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The colder water is heated to replace the hot water used. Compare with similar items. Turn on 1-Click ordering for this browser. Share Facebook Twitter Pinterest. Also, I had a great experience with their customer service group.

Both are intended to control the high end pressure of your boiler system and keep the relief valve from opening due to increased system pressure caused by the expansion of water.

Plain steel tanks have no moving parts, and require a separate pressure reducing valve to maintain initial fill pressure of 12 psi or higher depending upon the requirements of your system. Sorry, we’re having trouble showing recommendations right now. Before this tank, it would go over the pound setting and cause the relief valve to drip water on the floor.


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Amtrol ST Therm-X-Trol Thermal Expansion Tank

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 build up atnk something I wanted to do. Feedback If you are a seller for this product, would you like to suggest updates through seller support? Please try again later. Fulfillment by Amazon FBA is a service we offer sellers that lets them store their products in Amazon’s fulfillment centers, and we directly pack, ship, and provide zmtrol service for these products.

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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. Is this feature helpful?

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

A company rep from Amtrol recommended Specifications Expansion Tank Type. Fremont, CA [ Change ].

As the water is heated, thermal expansion occurs. Ordering another and hoping it lasts. Whoever ships this, be more careful.

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