Switches

Pressure switch for water filtration system

By sensing a change in system pressure, a pressure switch is commonly used to turn a water pump on and off. When a specified pressure point is achieved, a pressure switch detects it and opens or closes an electrical switching element. In most cases, a pressure switch may be adjusted to the desired set point of operation. They are used to respond to fluid pressure and are also known as pressure sensors.

Installing a pressure switch in the water supply line allows you to keep tabs on and adjust the pressure of the water throughout the system. In order to turn the water supply on or off depending on the water pressure in the supply line, a pressure switch is installed. Small and made of metal or plastic, the pressure switch is a fixture in the supply line. A diaphragm and switch are integrated into the device. The water supply can be turned on and off automatically in response to changes in demand thanks to a diaphragm that moves in response to pressure fluctuations in the supply line. The pressure switch limits strain on the membrane by regulating water pressure. This system is also important for water and energy conservation.

How pressure switches/pressure sensors work

All of the work is done by water pressure in pressure switches. The water from the well provides the pressure shift that triggers the switch. The pressure rises via the diaphragm and is applied to a piston and spring, which opens or shuts the contacts.