Air Over Water Pressure Tank

A pressure tank is filled with a large volume of air and it has an inlet that allows water into the bottom of the tank.

Air over water pressure tank. Several other manufacturers have followed suit in including the pre pressurized system in their tank design but amtrol is certainly the first. Tanks come in sizes from 2 gallons to more than 100 gallons and which one you need depends on the water pressure you are experiencing. Because air is compressible and fluids are not the water entering the tank will compress the air pressurizing it. There are three types.

Replaces any standard galvanized glass lined or. Turn off power to pump. They are designed for commercial and industrial systems that require internal and external protection that is more robust than traditional fabricated plain steel designs. The air pressure in the tank should be 2 to 10 psi below the start pressure of the pump.

Continue pumping air into tank until tank is nearly empty of water. With a 40 60 pressure switch the air pre charge in the tank should be no higher than 38 psi and no lower than 30 psi. Begin pumping air into tank with compressor. Amtrol invented the pre pressurized tank design over 50 years ago as a better solution to the air over tank.

Open faucet on laundry tub or other faucet that does not have a screen. By pass all water filtering equipment. Amtrol remains the industry standard in well pressure tanks today. When this takes place air will dissolve into the water and air pressure will diminish.

Use an air compressor to pre charge the tank to the correct pressure. By incorporating the diaphragm in the tank itself the problem of waterlogging has essentially been eliminated. Continue running water until pressure drops to 0. It is important to check it every so often to ensure the system is functioning proper.

Air over water type this is one of the older types. Pentair flotec fp7210 air over water pressure tank horizontal 30 gallons. And if the glass lining breaks you get iron in your water and rust build up inside the air over water tanks. Wessels type nag compression tanks are hot dipped galvanized interior and exterior carbon steel vessels.

Types of pressure tanks. Epoxy lined standard water tanks are excellent corrosion resistant tanks for home water systems applications such as retention tank holding tank and pressure tank. If you are on a private water system you probably have a pressure tank. Possible mix up between water and air is highly likely.

Air over water diaphragm and bladder tanks. They are designed to store water isolated within the tank utilizing the captured air cushion to control system pressures. The biggest disadvantage to air over water is water quality issues with air over water tanks causing oxidation of certain things plus normal sediment build up in the bottom that you can t get out. There is only chamber for water and air inside the tank.