OPERATING AND MAINTENANCE MANUAL. FAILURE TO FOLLOW THE INSTRUCTIONS AND WARNINGS IN THE MANUAL MAY RESULT IN SERIOUS OR FATAL INJURY AND/OR PROPERTY DAMAGE, AND WILL VOID THE PRODUCT WARRANTY. THIS PRODUCT MUST BE INSTALLED BY A QUALIFIED PROFESSIONAL. FOLLOW ALL APPLICABLE LOCAL AND STATE CODES AND REGULATIONS, IN THE ABSENCE OF SUCH CODES, FOLLOW THE CURRENT EDITIONS OF THE NATIONAL PLUMBING CODE AND NATIONAL ELECTRIC CODE, AS APPLICABLE.
Do not operate in a setting with freezing temperatures or where the temperature can exceed 
may over time corrode, weaken and burst or explode, causing serious or fatal injury, leaking or flooding and/or property damage. To minimize risk, a licensed professional must install and periodically inspect and service the Product. A drip pan connected to an adequate drain must be installed if leaking or flooding could cause property damage. Do not locate in an area where leaking could cause property damage to the area adjacent to the appliance or to lower floors of the structure.
ST-12, ST-8, ST-210V, ST-25V, ST-5 specifications
Amtrol has established itself as a key player in the manufacturing of thermal storage tanks and expansion tanks, particularly focusing on effective heating solutions for various residential and commercial applications. Among their notable products are the Amtrol ST-5, ST-25V, ST-210V, ST-8, and ST-12 models, each designed with unique features and technologies to meet the diverse needs of consumers.The Amtrol ST-5 is a compact yet powerful thermal expansion tank, ideal for smaller residential systems. It features a 5-gallon capacity and is robustly constructed to handle pressures up to 150 PSI, making it a reliable choice for protecting piping systems from pressure fluctuations. The tank's steel construction and internal glass-lining ensure durability and longevity, while its butyl diaphragm offers superior performance in maintaining water pressure within the system.
Moving to the ST-25V, this model boasts a larger 25-gallon capacity, making it suitable for medium-sized heating applications. The ST-25V incorporates innovative technology that aids in minimizing heat loss, ensuring efficient operation and energy savings. Its integrated air control system prevents air binding and facilitates easy installation, while its corrosion-resistant design enhances its lifespan even in challenging environments.
The ST-210V model signifies a step up in capacity and applicability with its 210-gallon design, tailored for larger residential or commercial setups. This model utilizes advanced thermal insulation materials to maintain optimal temperature levels over extended periods. The ST-210V also features advanced safety measures, including a built-in relief valve, ensuring user safety and system integrity even under fluctuating pressure conditions.
For smaller home heating systems, the Amtrol ST-8 represents a versatile choice with its 8-gallon capacity. It is designed with user-friendliness in mind, allowing for quick installation without compromising on reliability. In addition, its lightweight design makes it easy to handle while maintaining robustness to handle pressures up to 150 PSI.
Lastly, the ST-12 model serves as a reliable mid-range option offering a 12-gallon capacity. With similar features to its counterparts, the ST-12 is built to reduce thermal stress and enhance system efficiency. Its compact design does not sacrifice performance, making it an ideal solution for a variety of heating configurations.
In conclusion, the Amtrol ST series, including the ST-5, ST-25V, ST-210V, ST-8, and ST-12, showcases a diverse range of thermal and expansion tanks characterized by innovative technologies, robust construction, and user-centered designs. Each model is tailored to meet different capacity and application needs, ensuring that users can find the perfect solution for their heating systems.