Amtrol ST-12 Thermal Expansion Tank


Mega Sale! Save 21% on the Amtrol ST-12 Thermal Expansion Tank by Amtrol at My Core Franchise. 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
4.8 out of 5 stars with 14 reviews
Condition: New
Availability: In Stock
$73.66
$58.30
You Save: 21%


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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 & Parts
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

 


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