Pressure switch Dungs LGW 3 A-4 (LGW3 A4)

Differential pressure switch for air, flue and exhaust gases. Gas excess pressure switch.

Dungs LGW 3 A-4 pressure sensor

Differential sensors-relays for monitoring vacuum pressure, pressure difference and excess pressure of gas and air.

The LGW…A4 pressure switch is an adjustable differential pressure switch for furnace units. It is used to turn the electrical circuit on, off, or switch it to a preset pressure value when the actual pressure changes. The preset value (switching parameter) is set using an adjustment wheel with a scale. The metal housing contains a measuring flange.

Application Used in furnace units, ventilation units and installations for
Air conditioning. Differential pressure switch: used for air, flue and exhaust gases. Excess pressure switch: used for gases of families 1, 2, 3 and other neutral gaseous media.

When the pressure difference increases or decreases beyond the permissible limit, the contact closes and a signal is sent to the control device. A blue adjustment scale with digital setting indications allows for easy adjustment of the sensor. Simple installation, compact dimensions, and pressure connection:
P (+): on the bottom side of the housing in the center there is an internal thread G1/4
P (–): on the bottom of the housing there is an internal thread G1/8