Brady Air Volume Controls AV42T, AV80T, AV120T, AV100, An air volume control is installed on the well's storage tank to introduce air into the tank with each pump cycle. The air helps maintain the water system's pressure. They are used on water well storage tanks that do not have a bladder or membrane between the water and air.
Brady Check Valves prevent backflow and loss of prime in water well, irrigation, and sprinkler systems. Made from Acetal resin plastic, they are lead free, non-corrosive, non-conductive, and will outlast and outperform many metal valves. To use the valve as an inline check vlave simply do not install the included strainer.