Brady Air Volume Controls

Brady air volume control model AV42T, AV80T, AV100, AV120. An automatic air volume control maintains the correct volume of air in a atmospheric pressure tank and is essential to successful water system operation. Zinc die cast body , Buna N diaphragm and seal cap elastomers, brass spring and orifice; 100 PSI maximum pressure; Brady Air Volume Control (42 Gallon) # AV42T(B)Brady automatic air volume control maintains the correct volume of air in a atmospheric pressure tank up to 70 gallons capacity. Zinc die cast body, Buna N diaphragm and seal cap, brass spring and orifice; 100 PSI maximum pressure; 1/4" FNPT (Female pipe thread)tank, suction connection and gauge port; 1.01 lbs. AV42TList: $26.00Discounted Price $20.00 Brady Tank Air Volume Control (120 Gallon Tank) # AV80T(B)Brady automatic air volume control maintains the correct volume of air in a atmospheric pressure tank up to 120gallons capacity. Zinc die cast body, Buna N diaphragm and seal cap, brass spring and orifice; 100 PSI maximum pressure; 1/4" FNPT (Female pipe thread) tank, suction connection and gauge port; 1.2 lbs AV80TList: $34.00Discounted Price $26.00 Brady Air Volume Control (220 Gallon Tank) # AV120T(B)Brady automatic air volume control maintains the correct volume of air in a atmospheric pressure tank up to 220 gallons capacity. Zinc die cast body, Buna N diaphragm and seal cap, brass spring and orifice; 100 PSI maximum pressure; 1/4" FNPT (Female pipe thread) tank, suction connection and gauge port; 2.2 lbs AV120List: $45.00Discounted Price $34.00 Brady Air Volume Control (120 Gallon Tank) # AV100 (B)Brady automatic air volume control maintains the correct volume of air in a atmospheric pressure tank up to 120 gallons capacity. Zinc die cast body, Buna N diaphragm and seal cap, brass spring and orifice; 100 PSI maximum pressure; 3/8" FNPT (Female pipe thread) tank and 7/16"-24 male thread suction connection 1.0 lbs AV100List: $21.00Discounted Price $16.00 Brady Air Volume Control Installation Instructions Unless the correct amount of air is maintained in the tank it will water log. Leakage of water at a faucet will then cause the system to start and stop frequently and needlessly. The amount of air in a tank gradually diminishes, because of absorption of air in the water. If not replenished from time to time the tank becomes filled with water and the air under pressure becomes insufficient to force the water through the pipes. This is a water-logged tank condition. Disclaimers | F.A.Q