Amtrol THERM-X-TROL® Water Heater Expansion Tank ST-12, 4.4 Gallons
Original price was: $115.95.$81.17Current price is: $81.17.
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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:
- Antimicrobial liner neutralizes bacteria on contact
- Patent pending Turbulatorâ„¢ water diffuser
- 50 psi precharge – the industry’s highest
- Deep drawn steel domes for 2X the strength of other tanks
- Thickest diaphragm for extra long life
- Hoop and groove design for added reliability
- Stainless steel system connection
- NSF 61 approved
- Meets CA and VT low lead standards
- Made in the USA
Water heater manufacturers and plumbing codes require the installation of an expansion control device if a backflow preventor, pressure reducing valve or check valve is installed in the domestic supply line. Therm-X-Trol satisfies all manufacturers’ requirements.
| Weight | 7 lbs |
|---|---|
| Connection Size | 3/4 in |
| Max Accepted Volume Gallons | 3.2 gal |
| Height | 15 in |
| Diameter | 11 in |
| Tank Volume | 4.4 gal |
| Color Family | Off White |
| Diaphragm Material | Heavy Duty Buty NSF/ANSI 61 |
| Material | Steel |
| Max Operating Temperature | 200 °F |
| Max Operating Pressure | 150 psi |
| Manufacturers Part Number | ST-12 |
| Respirator Connection Type | NPTM |
| Brand | Amtrol |
| Warranty | 5 yr |
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