The working principle of a pressure switch is to operate an electrical contact once a fixed liquid pressure is attained. This switch will make electrical 

United Electric Controls. Mfr Part #: 10-C11. In Stock. Switch Type Compact, Cylindrical Pressure Switch Electrical Connection Type 1/2 in NPT (Male) Conduit Connection with 20 in lead Type Compact, Cylindrical Pressure Switch; Compact, Cylindral Pressure Switch Maximum Pressure Setting 1500 psi Thread Size 1/4mm; 1/4in; 1/4 Voltage 12 V dc

A pressure switch is an air-electric signal changer. Load switches are applied to interact with a variation in pressure, and it will open or close an electrical 

For pressure switch applications including pressure electric switches in pneumatic systems, control of pumps or small air compressors, and pressure electric 

Conversely, negative low pressure switches convert negative pressure signals into electrical output when there is a change in negative pressure. Mechanical (Electromechanical)

Positive low pressure switches work by converting a positive pressure signal into electrical output in response to changes in positive pressure.

Pressure switches are commonly used in controlling pressure in the following media: (1) Air. (2) Water. (3) Hydraulic oils. (4) Gases and. (5) Steam. Pressure switches are used for monitoring or controlling positive pressures while vacuum switches are used in the negative pressure range. Whether it is a pressure switch or a vacuum pressure

Pressure switches monitor the pressure level of a process and open or close electrical contacts at pre-determined set points. This allows the equipment to 

54 Series Pressure and Temperature Switch · Output flexibility with single or dual switch design · Improve switch accuracy with adjustable and narrow deadband 

Square D by Schneider Electric 9013FSG2J21M4 Air-Pump Pressure Switch, NEMA 1, 30-50 

See Customer Owner Feedback >>. Put the multimeter in the Ohms position (usually displayed with the Ω symbol). Make sure you’re measuring single ohms, and not mega-ohms. Double check that your leads are in the right place to test for Ohms, and get the switch. When you turn the pressure switch around, you’ll notice a side with different