Hydraulic Pressure Switches

A reliable source for Pressure Switch information and leading Pressure Switch Companies & Manufacturers.

Typically, hydraulic pressure switches are designed for handling of the majority of hydraulic fluids, although there are some that are specifically designed to handle a certain type. Although hydraulic pressure switches may be used in many diverse applications, the most common usage is in the automotive industry. Read More…

Hydraulic Pressure Switches Hydraulic pressure switches are used to regulate or measure the flow of hydraulic fluids.

Leading Manufacturers

Mentor, OH  |  440-205-7600

We manufacture unprecedented pressure switches. These top of the line devices are strong and highly proficient. If you are in need of sophisticated items then our engineers will assist you with our processes to discover the best product for your application. Our pressure switches are great for: electric/gas heaters, pumps, small air compressors, electric strip heaters in VAV systems, waste oil heating systems and more.

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Tecmark Corporation $$$

Pittsburgh, PA  |  412-788-2830

Since 1980, KOBOLD has been a leading manufacturer of high-quality pressure switches, gauges and transmitters. KOBOLD brings to you 25 years of experience, excellent customer service and FREE technical support. Call today or visit our website for all of your instrumentation needs. Our highly trained engineers and sales team can find the optimal solution for even the most demanding applications.

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KOBOLD Instruments Inc. $$$

Oneonta, NY  |  866-395-2902

At MAMCO Precision Switches, we have pressure switches of the highest quality. MAMCO quality products will not have the leakage problems or set point instability that others can have. With our expansive inventory, we manufacture and extensive line of products so that all needs can be met. Our competitively priced products and outstanding customer service are ready to serve you, please call!

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MAMCO Precision Switches $$$

Stratford, CT  |  203-378-8281

Ashcroft® manufactures a full line of high quality pressure switches for the shutdown and control of various types of processes. Ashcroft® switches meet application needs for industries such as off-road equipment, generators, compressors and many more. As the leader in technology and innovations, we design our products based on our customer’s requirements.

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Ashcroft® Inc. $$$

Lenexa, KS  |  800-676-6794

SOR® manufactures a full line of pressure, differential pressure, temperature, vacuum and level switches that are certified fit for use in SIL (Safety Integrity Level) environments. We are one of only a few manufacturers to offer its entire range of switches certified to the IEC 61508 standard. Our fundamentals include superior quality, excellent service and quick delivery.

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SOR Inc. $$$
placeholder image Tecmark Corporation KOBOLD Instruments Inc. MAMCO Precision Switches Ashcroft® Inc. SOR Inc.

Within the automotive industry, hydraulic pressure switches are often used for applications such as a means of alerting the driver if the fluid levels are low, to activate a warning light if the engine oil pressure drops below a safe pressure and to automatically switch on the brake lights if there is a pressure rise in the hydraulic brake pipes.

However, there are several other industries that utilize hydraulic pressure switches including: aerospace, for rocket propulsion and monitoring hydraulic fluids within airplanes; industrial, for boilers and chemical processing applications; wastewater, to prevent overflow through careful monitoring of pressures; and marine, for regulation of transmission fluid flow.

Hydraulic pressure switches typically operate within the range of 300 - 2600 pounds per square inch (PSI); however, higher pressure levels, up to 4000 or even 12000 PSI can be achieved. In addition, hydraulic pressure switches normally operate within a temperature range of -20 and 160º Fahrenheit (F).

Hydraulic pressures are actuated by either a drop or a rise in pressure, depending on the requirements of the application. The two main methods of actuation for hydraulic pressure switches are contact and non-contact. Actuation by contact involves physical placement of the pressure switch within the system being regulated, while non-contact actuation does not require physical placement, but utilizes more advanced technologies to allow for regulation while remaining outside of the system.

It is much more common for a hydraulic pressure switch to be actuated through contact versus non-contact. Hydraulic pressure switches are comprised of two main parts: a transducer and a switch. The transducer functions to measure the pressure of the system as well as to sense pressure fluctuation. When the transducer senses a change, it will send a signal to the switch.

The switch will then convert that signal into electrical energy, and use that energy to turn on or off, thus signaling through means of a warning light or sound that there is a problem with the pressure. Hydraulic pressure switches can be differential or vacuum switches: differential switches are used to measure or regulate between two points of differing pressure and are actuated based on the set points, while vacuum switches help regulate the pressure between two closed cavities through conversion of a negative pressure signal to an electrical output.

Hydraulic Pressure Switches Informational Video