Amtrol ST-12 Thermal Expansion Tank


Amtrol ST-12 Thermal Expansion Tank by Amtrol at Moseley Nash Water. MPN: ST-12. Hurry! Limited time offer. Offer valid only while supplies last. Amtrol ST-12 THERM-X-TROL Expansion Tank, 4.4 Gallon (141N43) What Is Thermal Expansion? 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 o


Amtrol ST-12 Thermal Expansion Tank by Amtrol
4.3 out of 5 stars with 28 reviews
Condition: New
Availability: In Stock
$58.30


Quantity:  

 


Product Description & Reviews

Amtrol ST-12 THERM-X-TROL Expansion Tank, 4.4 Gallon (141N43) What Is Thermal Expansion? 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. Closed Potable Hot Water system without THERM-X-TROL Backflow preventer, pressure reducing valve or meter causes expanded (heated) water to build pressure causing the relief valve to open resulting in: Wasted BTU's Shortened water heater life Wasted municipal water and sewer dollars Potential safety hazard for homeowner The Amtrol THERM-X-TROL ST-12 Expansion Tank is designed to eliminate this problem by providing control of maximum pressures at a level below the relief valve setting. 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.

Features & Highlights

  • Eliminates the waste of energy and water, thus saving money
  • Prevents the relief valve from going off
  • Protects the water heater and plumbing fixtures from premauture failure
  • Prevents a dangerous pressure build-up in the system

Additional Information

Brand:
Amtrol
Manufacturer:
AMTROL
Category:
Water Heaters
Color:
White
Model:
ST-12
MPN:
ST-12
UPC:
642031395672
Part Number:
ST-12
Size:
one-size
Publisher:
AMTROL
Binding:
Tools & Home Improvement
Item Weight:
4 pounds
Item Size:
11 x 15 x 8 inches
Package Weight:
8.85 pounds
Package Size:
11.7 x 11.4 x 15.9 inches

 


Have questions about this item (ST-12), or would like to inquire about a custom or bulk order?


If you have any questions about this product by Amtrol, contact us by completing and submitting the form below. If you are looking for a specif part number, please include it with your message.

First Name:
Last Name:
Email Address:
Your Message:

Related Best Sellers


sku: EE SP3512, mpn: GID-478237, ean: 0091654135101,
Eemax SP3512 Tankless Water Heater, Single Point Hand Washing - DISCONTINUEDEase of installation - No T and P valve needed - Only bring one cold water line to lavatory. Connections: 3/8-Inch compression fittings at top of unit. Voltage: 120V, Power: ...

mpn: BS158, ean: 0749882673383,
Gasland 1.58GPM 6L outdoor portable tankless water heater has compact size and lightweight design allowing for a convenient carrying. Flame failure device, anti-freezing protection, over heating protection can ensure the family safety. Maximum power ...

mpn: 2000026562, ean: 0076501241068,
Enjoy easy access to hot water during your next outdoor adventure with the Coleman Hot Water on Demand H2Oasis Portable Water Heater. Ideal for washing dishes, bathing, or preparing hot beverages, this propane-powered water heater dispenses hot water...

mpn: CM264, ean: 0769700687088,
1.The Camplux CM264 is high efficient power-vent tankless water heater. You can get instant endless hot water as you wish. 2.CM264 Tankless Water Heater is designed for small to medium hot water production, it is perfect for indoor use, at a cottages...