Amtrol THERM-X-TROL® Hydronic Expansion Tank, 3/4" x 3/4", MPT x MPT, 4.4 Gallon, Lead-Free, Antimicrobial Lined, Urethane Topcoated Deep Drawn Steel, Vertical, In-Line

AMST12 MFG #: ST-12
  • Brand: Amtrol®
  • Applicable Standard: IAPMO, ISO 9001
  • Application: Potable Water System
  • Temperature Rating: 200 deg F
Thermal expansion occurs as domestic water is heated. Left unchecked, the resulting pressure increase can cause relief valve discharge and other potentially hazardous conditions. Therm-X-Trol® expansion tanks absorb this expanded water, keeping water pressure at a safe level.
  • Features and More

Features/Benefits

  • 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
  • Projection Welded Air Stem to Help Eliminate Leaks
  • Accepts Expanded Water as System Temperature Rises and Returns Hot Water to System When Demand Occurs
  • Stand Models Designed for Large Residential and Light Commercial Applications
  • Multiple Units Can be Installed to Accommodate Larger Systems
  • Lead-Free
  • Made in USA

Inclusions/Features

    Projection Welded Air Valve, Stainless Steel System Connection, Steel Shell, Turbulator Water Circulator