Flexcon PH-12 , 4.8 Gallon Potable Water Expansion Tank

This potable water expansion tank is used on gas, oil, or electric, direct-fired, residential water heater and hot water storage tank applications to absorb the increased volume of water created by thermal expansion. It also maintains balanced pressure throughout the water supply system by keeping system pressure below the T&P relief valve setting. This field-adjustable steel tank is air pre-charged at 20 psi, volume 4.8 gallons, designed with an FDA-approved polypropylene liner and Butyl rubber diaphragm, copper-lined steel, and 3/4 inch male inlet connection. An expansion membrane prevents air-to-water contact in the tank ensuring a long system life. IAPMO listed and ANSI/NSF 61 certified. The maximum pressure is 150 psi (10 bar). Features Air pre-charge at 20 psi 3/4 IN male connection Prevents over-pressure caused by thermal expansion Butyl rubber diaphragm Technical Information PH Submittal Sheet PH Warranty PH Installation Manual PH Brochure Specifications Diameter 11 IN Inlet Connection Size 3/4 IN Inlet Connection Size-Metric 20 MM Inlet Connection Type Male NPT Lead Free YES Maximum Operating Temperature-Fahrenheit 200° F Maximum Working Pressure-PSI 150 PSI Mount Type Pipe Tank Acceptance 2.5 Gallons at 20 PSI