Common Industrial Pressure Measuring Devices

Industrial Pressure Measuring Devices

Pressure measuring devices are industrial automation instruments used to measure the pressure of gases, liquids, or steam. They are widely used in various industrial production process control, machinery equipment status monitoring, scientific research, and other fields.

Learning about common industrial pressure measuring devices can help you choose the most suitable product.

Pressure Measuring Devices Types

Pressure measuring instruments are industrial automation instruments used to measure gas or liquid pressure, also known as pressure gauges or manometers.

Based on the measurement principle, pressure measuring instruments are mainly divided into the following categories:

TypePrincipleInstrument Types
Liquid column typeBased on the principles of fluid statics, the measured pressure is converted into the height of a liquid column for measurement.U-tube pressure gauges, single-tube pressure gauges, inclined-tube pressure gauges, etc.;
Elastic typeThe principle is to utilize various types of elastic elements, causing them to deform elastically when subjected to pressure by the measured medium.Spring tube pressure gauge, bellows pressure gauge and diaphragm pressure gauge, etc.
Electrical typeThe pressure is converted into an electrical signal for transmission and display.Resistive pressure transmitters, capacitance pressure transmitters, piezoelectric pressure sensors, and piezoresistive pressure sensors;
Load typeThe pressure gauge is manufactured directly according to the definition of pressure. This type of pressure gauge has very low error and is primarily used as a reference instrument.Common pressure gauges include piston pressure gauges, float pressure gauges, and bell pressure gauges.

Featured Industrial Pressure Measuring Devices


Pressure is the force acting perpendicularly on the surface of an object. It is the force generated between contacting objects due to the compression of the surfaces, and its direction is perpendicular to the surfaces of the objects receiving the force. The formula for calculating pressure is: P = F/A, where P is the pressure, F is the force applied, and A is the area affected by the force. Pressure is measured as force per unit surface area.

In the International System of Units (SI), the unit of pressure is the Pascal, or Pascal (Pa), which stands for Newton per square meter (N/m²). This unit is named in honor of the outstanding French physicist Blaise Pascal.

Other common units of pressure include kilopascal (kPa), megapascal (MPa), psi (pounds per square inch, lb/in²), bar, standard atmosphere (atm), millimeters of mercury (mmHg), torr (Torr), inches of mercury (inHg), and millimeters of water column (mmH2O).

In industrial processes, we often talk about pressure types such as gauge pressure, absolute pressure, and differential pressure.

Gage pressure generally refers to the pressure measured by a pressure gauge or pressure transmitter, with its zero point being atmospheric pressure.

Absolute pressure, short for absolute pressure, is the actual pressure experienced by an object, with its zero point being a perfect vacuum.

Differential pressure refers to the relative difference between two pressures.

Learn more about the differences between various pressure types.

Pressure measurement involves using pressure measuring equipment to convert the pressure present in industrial processes into a signal that operators can interpret. This can be achieved through a pointer display, digital readout, or signal output.

Pressure is a critical parameter in industrial production. Fluid transport and changes in the physical properties of materials are all related to pressure. Furthermore, pressure is a safety factor in production design. Any equipment or device can only withstand the pressure specified by its design. Exceeding the allowable pressure range can damage the equipment or even cause an explosion, resulting in significant losses.

For example, if the pressure of a high-pressure vessel exceeds its rated value, it becomes unsafe and must be measured and controlled.

In certain industrial processes, pressure directly impacts product quality and production efficiency. For example, in the production of synthetic ammonia, nitrogen and hydrogen must not only be synthesized under a certain pressure, but the level of pressure also directly affects production output.

Regular pipelines and tanks require real-time pressure monitoring to prevent ruptures and leaks.

In addition, under certain conditions, pressure measurement can indirectly provide information about parameters such as temperature, flow rate, and liquid level.

Pressure measuring instrument customization case

Customized Case: High Temperature and High Pressure Pressure Measurement -100MPa-700℃

High temperature and high pressure type pressure measurement is an extremely harsh measurement. Usually, the temperature is higher than 80℃, or the pressure is higher than 60MPa, which exceeds the measurement range of conventional pressure transmitters. Sino-Inst supports providing you with customized solutions for various high temperature and high pressure measurement parameters. Customized case The … Read more
Read More Customized Case: High Temperature and High Pressure Pressure Measurement -100MPa-700℃

More Pressure Measurement Solutions

Sino-Inst primarily supplies electronic pressure measurement devices. These instruments measure pressure by converting changes in pressure into electrical signals. Examples include piezoresistive pressure sensors, capacitive pressure sensors, piezoelectric pressure sensors, and single-crystal silicon pressure sensors. Their output signals are typically voltage, current, or frequency, facilitating remote transmission and integration with automated control systems.

When selecting a pressure measuring instrument, factors to consider include the measurement range, accuracy level, operating environment (such as temperature, humidity, corrosion, and vibration), signal output format (analog or digital), the need for remote monitoring, and ease of installation and maintenance. If you are interested in selecting industrial pressure measuring devices or have any technical questions, please feel free to contact us.

    Request For Quote