Pressure Switches, Inc. is a manufacturer of high quality, industrial grade pressure switches with a well equipped CNC Manufacturing Facility located in southeast Louisiana. Contact us at 1-800-259-6874.

PSI - Pressure Switches Inc

Please select a Pressure Switch model from the list below.

Special Purpose Pressure Switch

Vacuum Switch

DP Switch

Series 2 (OEM Pressure Switch)

Series 6 Hazardous Location

All Documents

* please contact us for prices & quantities

Inquire about private labeling.


Pressure Switches, Inc.

Warren Davis, the founder of Pressure Switches Inc., passed away at the age of 91 at his home in Scio Oregon on March 25, 2018.

Our thoughts and prayers are with the family.

PSI manufactures high quality, industrial grade pressure switches. Offering superior materials of construction, our pressure switches are each hand assembled and tested throughout the assembly process to insure 100% customer satisfaction. We offer a full line of pressure, DP and vacuum switches. Our pressure ranges from 10" WC to 5000 psi. Enclosure ratings from Nema 4x to Nema 7&9 (Explosion proof).

All exterior materials are precision machined out of aluminum and anodized for durability. All internal workings are either anodized aluminum or stainless steel. All three series of pressure switches can be ordered with 316SS pressure connection fittings. All markings are laser engraved for durability and readability. All our pressure, vacuum & DP switches and components are manufactured and assembled in the USA.