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- Extrol® expansion tanks accept expanded fluid in closed-loop hydronic systems to control pressure build-up, improve comfort and help reduce energy costs. Nearly seven decades after inventing the first diaphragm expansion tank, Amtrol® line-up now includes specialty models engineered for modern, high-efficiency systems. None of it would have been possible without Extrol® The One That Started It All™.
Amtrol® EXTROL® Hydronic Expansion Tank, Vertical, Series: SX Series, 81 gal Capacity, 22 in Dia, 56 in Height, 100 psig, Acceptance Factor: 0.42, 34 gal Acceptance, 240 deg F, Heavy Duty Butyl/EPDM Diaphragm, Steel Shell, Urethane Topcoat, Domestic
- Strongest tank design featuring deep drawn steel and multi-dome construction
- Projection welded air stem to help eliminate leaks
- Patent-pending InSight™ service indicator cap
- With 1/4 in NPTF System Connection
- Capacity81 galDiameter22 inDomestic / ImportDomesticHeight56 inAcceptance Capacity34Acceptance Factor0.42Diaphragm TypeHeavy Duty Butyl/EPDMFinishUrethane TopcoatManufacturerAmtrolManufacturer #149-165MaterialSteel ShellPressure Rating100 psigSeriesSX SeriesTemperature Rating240 deg FTypeVertical