Water Pressure Tank Air Valve

Adjust the pressure with an air compressor if necessary.

Water pressure tank air valve. Pressure relief valves for water these valves are commonly used with pumps in low pressure water systems. Unscrew the plastic cover from the air valve on the top of the tank. Use a small screwdriver to depress the air valve to see if water comes out. Replacement is your only option.

Near the tank top on the tank side on a tee at the bottom of the water tank or on well piping nearby. A new tank costs about 200 and up. Design a valve specifically for your process media and set pressure. Bleeding air out from the tank top will prove a short remedy and pressure will creep up again.

Water tank air inlet valve schrader valves. A common cause is a failed check valve. Choose from a valve for air inert gas water hydraulic oil fuel oil gasoline or diesel fuel and a set pressure from 150 to 3 300 psi. When water pulses at the spigot it usually means you have a waterlogged tank.

Captive air water tanks that use an internal bladder to keep water and air separate such as the well x trol water pressure tank will display an air valve usually on top of the water tank and often red in color such as shown in this photograph. Unscrew the cap covering the valve and press the tire gauge down on the valve. At left is an air inlet valve located on the tank tee near the bottom of what was a bladderless water pressure tank. The check valve or foot valve prevents the well pressure tank from sending water back down into the well after it has built up with water pressure.

Check the air pressure in the water tank by using an accurate air pressure gauge such as a dial type or digital tire pressure gauge to measure the air pressure at the schrader valve on the water tank. The tank pressure should be within 10 of the original factory water tank pressure setting. Water tank pressure measured at the air gauge or schrader valve on the tank top will creep up to above normal levels. The air inlet valve on a bladderless water pressure tank may be at any of several locations.

The air will trigger the piston inside the gauge and measure the air pressure within the tank. If the valve fails water streams back down the well and the pressure switch turns the pump on again.