ST-C Diaphragm Expansion Tank, ASME, 14 gal Tank, 9 gal Acceptance, 150 psi
PartAMTST30VC
MFG143-327
Description
Amtrol® THERM-X-TROL® Diaphragm Thermal Expansion Tank, Series: ST-30VC, 14 gal, 16 in Dia, 19 in Height, 150 psi, Acceptance Factor: 0.64, 200 deg F, Heavy Duty Butyl Diaphragm, Steel Shell, Red Oxide Primer, Domestic
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- Water heater and fixtures are protected
- Eliminates BTU and water waste, saving money and energy
- No dangerous pressure build-up in the system
- Relief valves will not be triggered
- Potential safety hazard reduced
- Accepts expanded water caused by thermal expansion
- Returns water to the system when hot water is used
- Protects water heater and fixtures
- Full and partial acceptance bladders are replaceable
- Diaphragm models include Clean Water Technology™
- Deep drawn domes vs head and shell construction
- Smaller weld area eliminates potential leak paths
- Reduced diameter allows tank to fit a tighter footprint
- Lighter weight makes handling easier
- NPTM connection simplifies installation
- More convenient air valve location
- Fixed diaphragm construction
- Seismic restraints available on stand models only
- 3/4 in NPTF stainless steel system connection
The THERM-X-TROL is designed to provide control of maximum system 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. Maximum pressure is kept well below the relief valve setting by the THERM-X-TROL, with its pre-charged air cushion that is separated from system water. The relief valve does not open, therefore "spillage" is eliminated.
| Type | Diaphragm |
| ASME Yes/No | Yes |
| Tank Volume | 14 gal |
| Acceptance Volume | 9 gal |
| Pressure Rating | 150 psi |
| Series | ST-C |
| Acceptance Factor | 0.64 |
| Capacity | 14 gal |
| Diameter | 16 in |
| Diaphragm Type | Heavy Duty Butyl |
| Domestic/Import | Domestic |
| Finish | Red Oxide Primer |
| Height | 19 in |
| Material | Steel Shell |
| Temperature Rating | 200 deg F |
| Brand | Amtrol® |
| UNSPSC | 24111807 |
| Country of Origin | US |
| Manufacturer | Amtrol |
| UPC | 642031437570 |
| Manufacturer Part Number | 143-327 |
1 Year Limited
ANSI/NSF61|ASME VIII|Division 1 Standards|IAPMO Listed|NAF 2016 Compliant|SBCCI
Closed potable water systems to control pressure build-up
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Amtrol®ST-C Diaphragm Expansion Tank, ASME, 14 gal Tank, 9 gal Acceptance, 150 psi
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