Expansion Tank Pressure Switch

A pre charged bladder tank is an expansion tank which is already charged with air.

Expansion tank pressure switch.

Use a tire gauge to check the pressure. The pressure switch monitors the pressure in the tank. Code requires an expansion tank only if the system is closed this absorbs excess pressure as the water heats. Use a bicycle pump or compressor to fill the tank to match the system pressure you noted earlier.

Use a bicycle pump or compressor to fill the tank to match the system pressure you noted earlier. Most expansion tanks come pressurized to 12 40 psi but before you install the tank you have to match the system pressure. Close off all plumbing fixtures that are using water in the building. Here is the procedure.

If you do have another check valve then you would need an additional expansion tank also. Turn on the water pump and let the system run until the water pump cuts off. Open one or more plumbing fixtures to drain the water pressure tank. Use a tire gauge to check the pressure.

Future bk king ultra. A bladder expansion tank is a system which is used for heating and cooling purposes by absorbing the expansion force. Most households are set up to run with a pressure switch that turns the pump on at 30 pounds of pressure and turn the pump off at 50 pounds of pressure. It uses compressed air to adjust with the pressure changes by eliminating or accepting the water volume changes as it expands or contracts due to heating and cooling.

It informs the well pump when to turn on and when to turn off based on the rise and fall of the pressure within the tank. Start by removing the protective cover from the air valve on the tank. Most expansion tanks come pressurized to 12 40 psi but before you install the tank you have to match the system pressure.