Therm-X-Trol ST-12 Thermal Expansion Tank, 4.4 gal

Description

Expansion Tank, Thermal Type, 4.4 gal. Capacity, 3/4 inch Connection, NPT Connection, Steel Shell, Polypropylene Liner, Butyl Diaphragm, Temperature Rating: 200 Deg F, Usage: Used For Office/Apartment Buildings, Dormitories, Elderly Housing, Extended Care Facilities, Condominiums/Large Residential, Food Service, Laundromats, Hospitals, Other General-Use Hot Water Systems, Dimensions: 15.5 H inch x 11 inch dia., Working Pressure: 150 psig, Acceptance Volume: 0.73 max., Standards: NSF 61 approved, Meets CA and VT Low-lead

Features

• Eliminates the waste of energy and water, protects the water heater and plumbing fixtures from premature failure, reduces potential safety hazards associated with thermal expansion
• Prevents the relief valve from going off, prevents a dangerous pressure build-up in the system
• Molded polypropylene liner for maximum corrosion resistance
• Deep drawn domes for maximum-strength and pressure rating
• Diaphragm hoop ring mechanically grooved for permanent air-tight seal, Butyl diaphragm for long life expectancy tested to over 250000 cycles

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