A Water Pump Pressure Switch

The switch is preset with both the cut on and cut off pressure.

A water pump pressure switch.

If it isn t make sure your filter isn t clogged or in need of a change. However with the pressure switch the pump can be adjusted to turn on and off at predetermined settings to control the pump and subsequent pressure. Check the well tank pressure gauge to see if it is at least 40 psi or the cut off psi for your pressure switch model. Without the use of the switch the water pump would always be on or off.

This pressure switch signals the pump to start this pressure switch signals the pump to start when the water system drops to 30 psi factory set and stops at 50 psi factory set. The cut on pressure is the low pressure that starts the pump and the cut off pressure is the high pressure that turns off the pump. Merrill mps3050 water well pressure control air pump pressure switch 30 50 psi pressure setting nema 1 adjustable differential 1 4 female npt 4 0 out of 5 stars 6 15 00 15. Pressure switches are used on water pumps for the accurate control of the pump as it produces pressurized water.

Merrill mps4060 water well pressure control air pump pressure switch 40 60 psi pressure setting nema 1 adjustable differential 1 4 female npt 4 5 out of 5 stars 2 15 00 15. The starting and stopping of a well water pump is typically controlled by a pressure switch similar to the one shown below. Check the pressure gauge to make sure it isn t stuck or. Normally this switch is pre set to the correct pressure but you can modify it without any special tools or materials using just plumbers pliers.

The well pump water pressure switch controls the rate at which the pump will turn on and off. This switch is to be used with submersible well or jet pumps. It makes use of two pressure systems to control the water flow and adjusting the water pressure involves adjusting these systems.