What is a pressure transmitter?

A pressure transmitter is a mechanical device used to measure the expansion force of liquid, gas, and steam samples.

As you know the pressure transmitter is a measuring device that converts pressure signals into standard electrical signals. It is widely used in industrial automation control.
Material: The main body is usually made of stainless steel (such as 304/316L), Hastelloy alloy or ceramics, which are corrosion-resistant and suitable for complex media; sealing materials commonly used are fluororubber or polytetrafluoroethylene.

Pressure is typically defined as the magnitude of force per unit area, and is expressed in terms of the force required to prevent the expansion of liquids, gases, or vapors. To quantify pressure, various derived units are also used, including:
·The units for the display range of pressure are: kPa, MPa, bar, psi (1 bar ≈ 100 kPa). The coverage range extends  0 - 1 kPa ... 0 - 100 MPa.
·Regarding the unit of measurement, the international unit is the Pascal (Pa), but in practical applications, units such as kilopascal (kPa), megapascal (MPa), bar, and psi (pounds per square inch) are commonly used. It is necessary to confirm the standards in different regions or industries. For example, in the United States, psi is more commonly used, while in Europe, bar is used.

In terms of the application of pressure transmitters in actual conditions, the temperature range is very important. For instance, extreme high or low temperatures can affect the performance of the pressure transmitter, and different protection levels may be required, such as IP65 or IP67. Additionally, the type of medium is also crucial. Whether there is corrosive substances, highly viscous liquids or gases, different media may require different sealing materials or structures.

Regarding the application fields of pressure transmitters, they are used in industries such as petrochemicals, power, water treatment, and pharmaceuticals. Different industries may have different requirements. For example, the petrochemical industry requires explosion-proof models, while the pharmaceutical industry may need designs that comply with hygiene standards and are easy to clean.

Operating conditions: Tolerates temperatures ranging from -40℃ to 200℃, with a protection level of IP65/IP67. Capable of handling corrosive, high-temperature or high-viscosity media. Some models support explosion-proof (Ex certification).

Application fields: Petrochemicals (pipeline pressure monitoring), power (boiler systems), water treatment (pump pressure control), pharmaceuticals (pressure feedback in clean environments), etc. Selection should be based on industry standards (such as sanitary type, explosion-proof type).

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