ST Diaphragm Expansion Tank, 4.4 gal Tank, 3.2 gal Acceptance, 150 psi
PartAMTST12
MFG141N43
Description
Amtrol® Therm-X-Trol® Thermal Expansion Tank, In-Line, Series: ST Series, 4.4 gal Tank Volume, Acceptance Volume: 3.2 gal, 150 psig, ASME Yes/No: No, 11 in Dia, 15 in Height, Drawn Steel, 50 psig Pre-Pressure Rating, 200 deg F Maximum Temperature, MNPT, 3/4 in, Urethane Topcoat, Domestic
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- 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
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.
| Type | Diaphragm |
| ASME Yes/No | No |
| Tank Volume | 4.4 gal |
| Acceptance Volume | 3.2 gal |
| Pressure Rating | 150 psi |
| Series | ST |
| Connection Size | 3/4 in |
| Connection Type | MNPT |
| Diameter | 11 in |
| Domestic/Import | Domestic |
| Finish | Urethane Topcoat |
| Height | 15 in |
| Material | Drawn Steel |
| Maximum Temperature | 200 deg F |
| Pre-Pressure Rating | 50 psi |
| Brand | Amtrol® |
| Package Width | 11 in |
| Package Height | 15 in |
| UNSPSC | 40101800 |
| Alternate Part Number 1 | ST-12 |
| Package Length | 11 in |
| Country of Origin | US |
| Manufacturer | Amtrol |
| UPC | 642031395672 |
| Manufacturer Part Number | 141N43 |
5 Years Limited
IAPMO R and T Low Lead|NSF/ANSI 61|PHCC Association
For Use With Closed, Potable Hot Water Systems to Control Pressure Build-Up and Protect the Water Heater
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Amtrol®ST Diaphragm Expansion Tank, 4.4 gal Tank, 3.2 gal Acceptance, 150 psi
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