AMTROL ST-12 Expansion Tank

( Brand: Amtrol ), ( Manufacturer Part Number: ST-12 ), ( Color: White ), ( Material: Metal ), ( Compatible Product: Storage Tank Water Heater ), ( Tank Capacity: Less Than 20 Gal ), ( Type: Thermal Water Heater Expansion Tank ), ( Item Height: 17 )

Review AMTROL St Expansion Tank

The Amtrol ST-12 Expansion Tank is a high-performance, polybutylene (PB) tank designed for use in hydronic heating systems. This 12-gallon expansion tank offers reliable and efficient operation, ensuring optimal system performance and longevity.

Constructed from FDA-compliant, food-grade PB material, the Amtrol ST-12 tank boasts excellent chemical resistance and durability. Its smooth, ribbed interior promotes efficient air and water mixing, reducing the risk of condensation and ensuring proper system operation. The tank's sturdy, one-piece design features a robust, glass-reinforced polyester resin base, providing added strength and stability.

The Amtrol ST-12 expansion tank comes equipped with a 3/4-inch NPT threaded inlet and outlet connections, making it easy to integrate with most hydronic heating systems. The tank also features a visible air eliminator bulb, which simplifies the process of purging air from the system during installation or maintenance.

The tank's compact design allows for convenient installation in spaces with limited clearance. Its attractive, gray finish blends seamlessly with most heating system environments, while its sturdy handle ensures easy transportation and maneuverability.

The Amtrol ST-12 expansion tank is compatible with a wide range of hydronic heating systems, including baseboard, radiator, and in-floor heating applications. Its 12-gallon capacity is suitable for systems with moderate to high heating demands, ensuring reliable expansion and contraction of the system's water volume.

In summary, the Amtrol ST-12 Expansion Tank is a high-performance, polybutylene tank designed for use in hydronic heating systems. Its smooth interior, robust design, and easy installation make it an ideal choice for efficient and reliable system operation.

The Amtrol ST-12 12-gallon expansion tank is a popular choice for heating systems due to its large capacity and durable design. Here are some pros and cons to help you make an informed decision about whether to purchase this expansion tank:

1. Large Capacity: The 12-gallon capacity of the Amtrol ST-12 expansion tank is sufficient for most residential heating systems, reducing the need for frequent refills.

2. Durable Construction: This tank is made of heavy-duty, corrosion-resistant materials, including a fiberglass reinforced polypropylene (FRP) body and a polypropylene base. It is also UV-stable, making it suitable for use in both indoor and outdoor environments.

3. Easy Installation: The Amtrol ST-12 expansion tank is designed to be easily installed, with a threaded connection for the fill and relief valves. It also comes with a factory-installed pressure relief valve, which simplifies the installation process.

4. Leak-Free Design: The tank's design includes a leak-free, one-piece, molded body that eliminates the need for gaskets or seals, reducing the likelihood of leaks.

5. Wide Temperature Range: The Amtrol ST-12 expansion tank is suitable for use in a wide range of temperatures, from -40 F to 250 F.

1. Price: The Amtrol ST-12 expansion tank is more expensive than some other models on the market, due to its large capacity and durable construction.

2. Size: The tank's large size may make it difficult to install in tight spaces or basements with low ceilings.

3. Weight: At approximately 70 pounds, the Amtrol ST-12 expansion tank is heavier than some other models, which may require additional lifting equipment for installation.

The Amtrol ST-12 12-gallon expansion tank offers several advantages, including its large capacity, durable construction, and easy installation. However, it is more expensive and heavier than some other models, and its size may make it difficult to install in certain spaces. Ultimately, if you have the space and budget for this tank, its advantages may outweigh its disadvantages, making it a worthwhile investment for your heating system.

If you are in the market for an expansion tank for your heating system, the Amtrol ST-12 12-gallon model is a strong contender. Its large capacity, durable construction, and easy installation make it an excellent choice for most residential heating systems. However, if you are working with a tight budget or limited space, there may be other models on the market that better suit your needs. Be sure to carefully consider your options before making a purchase.

Details:

St 12 Expansion Tank.

part #: st12 prices

• $750.00-$900.00

specifications wateheat:

• brand: Amtrol
• mpn: St-12
• color: White
• material: Metal
• compatible product: Storage Tank Water Heater
• tank capacity: Less Than 20 Gal
• type: Thermal Water Heater Expansion Tank
• item height: 17

payments wateheat:

• wallet: Google-pay
• other
• credit card: Discover

returns wateheat:

• policy: No Returns

general wateheat:

• Heating, Cooling Air > Water Heaters > Water Heater Parts
• condition: New

seller wateheat:

• city: Naugatuck, Connecticut
• rating: 100.0%
• # reviews: 36

shipping wateheat:

• carrier: USPS
• type: Calculated
• service: USPS Ground Advantage
• class: Standard
• cost: $8.78
• transit: 4-10 Days

offer wateheat:

• best offers: True
• started: May 5, 2025
• options: Ship-to-home
• sold: 0
• quantity: 1
• availability: In Stock

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