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Pressure Sensor

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Pressure sensors are important safeguards to many kinds of equipment that involve pressurized fluid. Read More…

Pressure Sensor Pressure sensors are instruments used to measure and report the pressure of a fluid in an enclosure. Pressure sensors can be used to measure fuel pressure in a fuel line, oil pressure in an engine, barometric pressure at a weather station, water pressure in a pump system and many other kinds of pressure in many contexts.
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Leading Manufacturers

Boxborough, MA  |  800-257-3872

We design and manufacture acceleration, pressure and weight sensing products. Setra makes fuel cell pressure transducers, industrial strain gauge pressure transducers, HVAC/R pressure transducers, ultra-high purity and vacuum pressure transducers plus other types. We've been in business since 1967.

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Setra Systems, Inc. $$$

Attleboro, MA  |  508-236-3800

Sensata Technologies is known for many items. Among these are pressure transducers, used for industrial and HVAC/R gas and liquid sensing. These pressure transducers are available as sealed gauge, gauge or absolute. If one of our standard offerings doesn't suit your need, we will customize.

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Sensata Technologies, Inc. $$$

Amherst, NH  |  800-216-3636

ControlAir is a worldwide leading manufacturer of precision pneumatic and electro pneumatic control products essential to automated industrial equipment, process control systems and instrumentation, laboratory research and analysis, energy management, fluid power, robotics, and valve automation applications. An ISO-9001:2015 registered quality system assures tightly controlled specifications and processes, resulting in dependable pneumatic controls.

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ControlAir, Inc. $$$

Northridge, CA  |  818-886-2057

For over 41 years Validyne Engineering has been designing, marketing, manufacturing and servicing a broad range of pressure transducers & transmitters having full scale ranges from 0.1 in h20 to 12,500 psi and signal conditioning & data acquisition system. Over 3,000 customized "specials" have been derived from their standard product offerings.

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Validyne Engineering Corp. $$$
placeholder image Setra Systems, Inc. Sensata Technologies, Inc. ControlAir, Inc. Validyne Engineering Corp.

Because so many industries involve pressurized fluid in some way, pressure sensors are very important tools throughout industry. Wastewater treatment, petrochemical extraction and development, plastics processing and thermoforming, automotive manufacturing, aerospace products development and a long list of other industries rely on pressure sensors in some capacity to ensure the effectiveness and safety of their products and processes.

SITRANS P300 Hygienic Pressure Transmitter SITRANS P300 Hygienic Pressure Transmitter - Siemens Process Instrumentation

Pressure sensors are also often known as pressure transmitters; the two terms are synonymous, and they are descriptive of a pressure sensor's purpose: to make monitoring technicians or systems aware of the extent to which an enclosure is pressurized. Some pressure sensors can also be pressure regulators, which both sense and control pressure levels, sometimes automatically and sometimes semi-automatically. Such sensors are designed to monitor changes in pressure and are often connected to safety devices that activate shut-off switches.

There are five types of pressure sensors: gauge, absolute, vacuum, differential, and sealed. Gauge sensors are calibrated to measure the pressure relative to atmospheric pressure at a given location. Atmospheric pressure at sea level is approximately 14.7 PSI. Because many, if not most, of the systems, equipment and processes that require the use of pressure sensors are only concerned with pressure levels relative to 14.7 PSI, gauge sensors are the most common of the five types of pressure sensors.

Absolute sensors measure the pressure relative to 0 PSI, which is the complete absence of pressure. Since it is impossible to completely evacuate an enclosure (no prefect vacuums exist in nature either), it is more accurate and meaningful to say that absolute pressure sensors measure pressure without regard for ambient pressure conditions. Such pressure sensors are useful in conditions that are subject to frequent ambient pressure changes; scuba gear, for example, often employs absolute pressure sensors.

Vacuum sensors are used to measure pressure that is less than local atmospheric pressure, while differential sensors measure the difference between two or more pressure inputs in the unit. The last kind of sensor, sealed, is similar to the gauge sensor, except that it measures pressure relative to the pressure at sea level, 16.4 PSI.

Pressure Sensor Informational Video