AMTROL® Therm-X-Trol ST Series ST-12 Thermal Expansion Tank, 4.4 gal Capacity, 3/4 in, MNPT, Steel, Urethane Top-Coated
- Manufacturer: Worthington Industries, Inc
- Brand Name: AMTROL®
- Part#: AMTST-12
- MPN: ST-12
- UPC: 642031395672
- Min. Order Qty: 1
- Qty. Interval: 1
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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. Amtrol invented the thermal expansion tank to control pressure build-up in closed, potable water systems. This prevents the water heater pressure relief valve from opening, saves energy and eliminates a potential safety hazard.
AMTROL® Therm-X-Trol Thermal Expansion Tank, ST Series, 4.4 gal Capacity, 3/4 in Connection, MNPT Connection, Steel, Finish: Urethane Top-Coated, 150 psi, 200 deg F, 15 in H x 11 in Dia
| Capacity | : | 4.4 gal |
| Connection Size | : | 3/4 in |
| Connection Type | : | MNPT |
| Dimensions | : | 15 in H x 11 in Dia |
| Finish | : | Urethane Top-Coated |
| Material | : | Steel |
| Pressure Rating | : | 150 psi |
| Series | : | ST Series |
| Temperature Rating | : | 200 deg F |
- Antimicrobial liner neutralizes bacteria on contact
- Turbulator water diffuser
- Deep drawn steel domes for 2X the strength of other tanks
- Thickest diaphragm for extra long life
- Hoop and groove design for added reliability
- Accepts expanded water as system temperature rises and returns hot water to system when demand occurs
- Multiple units can be installed to accommodate larger systems
- Stainless steel system connection
- Heavy-duty butyl NSF/ANSI 61 diaphragm
- Antimicrobial liner protection
- Projection welded air valve
- InSight indicator cap
- 0.73 maximum accept factor
- Non-ASME tank
- Made in USA
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