Local Pickup FAQ's
Hover to zoom
1 Of 5
Amtrol Therm-X-Trol® - 6.4 Gallon - In-Line Thermal Expansion Tank - ASME Certified
Model:
ST-12C-DD
+
Share This Product
Recommended Accessories
Expert Recommended Accessories
Selected by Ken, our Expert
Required Accessories
9
These accessories are required to properly setup/install this product.
Optional Accessories
10
Features
- USA Made, ASME Certified
- All ST-C thermal expansion tanks are made in US facilities and meet ASME Section VIII, Division 1 standards.
- Heavy Duty Tank
- Amtrol's diaphragm design features an ASME approved steel shell for increased strength, while its reduced diameter and weight allow for easy handling and installation.
- Eliminates Wasted Energy
- Expanded water collected by the Therm-X-Trol® tank returns the water back to your system, preventing faucet drips, intermittent toilet fill, and pressure relief valve discharge.
- Protection for Your System
- Therm-X-Trol® thermal expansion tanks are designed to protect your water heater, fixtures, and appliances by preventing dangerous pressure build up.
- Antimicrobial Protection
- The Therm-X-Trol® tank features an antimicrobial inner lining that neutralizes bacteria in your water system on contact. This safe, silver-ion technology targets only active microorganisms.
- Fresh Water Turbulator™
- The Therm-X-Trol's® Fresh Water Turbulator™ agitates the incoming water stream, creating a water-jet scrubbing action that prevents sediment buildup and extends the life of your tank.
In 1954, Amtrol invented the thermal expansion tank to control pressure build-up in closed hot water systems. Today, they are continuing to roll out efficient and reliable tanks to improve your system. The Therm-X-Trol® in-line thermal expansion tank is a perfect example of this. By accepting expanded water caused by thermal expansion, this expansion tank is able to then return the water to the system when hot water is used. The Therm-X-Trol® expansion tank also prevents pressure relief valve discharge, dripping faucets, and intermittent toilet fill. From the strong deep drawn steel domes with corrosion resistant liner to the welded air charge fitting, the Therm-X-Trol® is designed to prevent damaging pressure buildup and eliminate energy and water waste. The ST-12C-DD is ideal for commercial applications.
Product Note
This product must be shipped freight due to shipping restrictions on pre-charged expansion tanks.
Specifications
ST-12C-DD
Overview
Product Category
Water Heater - Expansion Tanks
UPC
642031668288
General Information
Product Line
Therm-X-Trol
Product Category
Water Heater - Expansion Tanks
Casing
Steel
Flange Material
Stainless Steel
Connection Type
NPT
Color
Red
Capacity
6.4 Gallons
Performance
Maximum Operating Temperature
200 F
Maximum Operating Pressure
150 PSI
Dimensions
Maximum Acceptance Volume
3.2 Gallons
Connection Size
3/4 Inch
Product Diameter
12 Inches
Product Height
18 Inches
Shipping Height
22 19/48 Inches
Shipping Width
12 43/48 Inches
Shipping Length
13 7/24 Inches
Certifications
Country of Origin
United States
ASME Certified
Yes
Warranty Information
Warranty
Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
1 Year
Reviews
(1)
Amtrol ST-12C-DD Reviews & Ratings
Product Q&A
Be the First to Ask A Question
Answered by Ken, the eComfort Product Expert
How-To Articles
What Size Tankless Water Heater Do I Need
Size matters when it comes to your tankless water heater. In fact, it is t...
Signs You Need a New Water Heater
You’ve heard the stories. A 60-gallon hot water heater tank ruptures, flo...
An Intro to Indirect Water Heaters
If you heat your home with a boiler, you have the opportunity to get the most e...
Manuals
Ask A Question!
*Required Fields
+
Thank You For Submitting Your Question
Your submission has been sent successfully. Please give our experts up to two business days to respond.
Media Gallery
Amtrol Therm-X-Trol® - 6.4 Gallon - In-Line Thermal Expansion Tank - ASME Certified
Customer Review Images