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Amtrol-Worthington ST-5

Amtrol-Worthington ST-5Expansion Tank Therm-X-Trol Thermal 2 Gallon 150 Pounds per Square Inch Gauge 3/4" Male NPT ST-5 Non-ASME for Domestic Hot Water Heating Systems to Eliminate the Potential Hazards of Water Expansion

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Product Overview


Amtrol invented the thermal expansion tank to absorb expanded water in closed, hot water systems and protect the water heater. Since the beginning, we've kept the pressure on our competitors with features they just can't match
like our patented Turbulator, antimicrobial liner, patent-pending InSight service indicator cap and 50 PSIG precharge. When your water heater is on the line, we deliver.

  • Antimicrobial liner neutralizes bacteria on contact
  • Patented Turbulator water circulation device
  • InSight indicator cap tank service alert
  • Strongest tank design featuring deep drawn steel and multi-dome construction
  • Thickest diaphragm - heavy duty butyl
  • Projection welded air stem to help eliminate leaks
  • Exclusive ST-1 for tankless water heaters

Product Details

BrandAmtrol-Worthington
Product TypeThermal
Tank Capacity2GAL
Pressure150PSIG
Inlet/Outlet Connection3/4IN Male NPT
Part NumberST-5
StandardNon-ASME
Precharge Pressure50PSIG
Temperature200DEG F
Diaphragm MaterialHeavy Duty Butyl
MaterialSteel
ApplicationDomestic Hot Water Heating Systems to Eliminate the Potential Hazards of Water Expansion
Length8IN
Width8IN
Height13IN
California ResidentsWARNING: Click here for Proposition 65 information.

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