Multiple Technologies
Strain gauge, piezoresistive, capacitive, fiber optic. Gas, liquid, steam, viscous media. Gauge, absolute, differential.
Certified for Hazardous Areas
ATEX, IECEx, IP67/IP68, 316L/Hastelloy. For petrochemical, hydrogen, subsea, and other hazardous locations.
High Overload & Custom Output
Survives 10x overload. Outputs: 4-20mA, 0-10V, RS485, CANopen, wireless. Custom ranges, connections, fill fluids.
Pressure Sensor Application Scenarios
Industrial Automation
In pneumatic systems, hydraulic systems, air compressors, and vacuum equipment, pressure sensors are used for real-time monitoring of pipeline pressure, cylinder pressure, oil pressure, etc. UNIVO's pressure transmitters feature high reliability, multiple ranges and output signals, suitable for pressure closed-loop control and safety protection in automated production lines.
Learn MoreAerospace
In aircraft engines, hydraulic systems, fuel systems, environmental control systems, and ground test equipment, pressure sensors are used to measure critical parameters such as fuel pressure, oil pressure, and pneumatic pressure. UNIVO provides high-precision, lightweight, high and low temperature resistant, vibration-resistant pressure sensors for the aerospace field, meeting aviation-grade reliability and long-life requirements.
Learn MoreOil and Gas
In oil and gas exploration, drilling, fracturing, pipeline transportation, and refining, pressure sensors are used for wellhead pressure, pipeline pressure, tank pressure monitoring and safety interlocking. UNIVO's explosion-proof pressure transmitters feature high pressure resistance, corrosion resistance, wide temperature operation, and explosion-proof certification, suitable for flammable and explosive oil and gas environments, ensuring site operation safety.
Learn MoreMedical Equipment
In ventilators, anesthesia machines, patient monitors, infusion pumps, and dialysis equipment, pressure sensors are used to measure airway pressure, blood pressure, and line pressure. UNIVO's medical pressure sensors feature high sensitivity, small size, low power consumption, and biocompatibility, meeting safety and accuracy standards for medical equipment.
Learn MoreTesting and Analytical Instruments
In wind tunnels, engine test benches, material testing machines, and environmental simulation chambers, pressure sensors are used to accurately measure static pressure, dynamic pressure, differential pressure, etc. UNIVO's high-accuracy pressure sensors feature low time drift, low temperature drift, and high linearity, suitable for pressure data acquisition and analysis in laboratory and production line testing.
Learn MoreHVACR
In heating, ventilation, air conditioning, refrigeration units, heat pumps, and duct systems, pressure sensors are used for refrigerant pressure, air pressure, and water pressure monitoring, as well as compressor control. UNIVO's HVAC-dedicated pressure sensors feature resistance to refrigerant corrosion, wide temperature operation, compact size, and stable output, improving energy efficiency and reliability of HVAC&R systems.
Learn MoreSolution
Pressure sensor: Pressure monitoring and safety interlocking solution for petrochemical industry
- Petrochemical production processes involve high temperature, high pressure, and flammable/explosive media. Pressure is a core parameter for the operation of reactors, distillation towers, storage tanks, and pipelines. Excessive pressure may cause leakage or even explosion, while too low pressure affects product quality or leads to process abnormalities. Pressure sensors convert medium pressure into standard electrical signals for process control, alarming, and safety interlocking, and are key instruments in the automation systems of petrochemical plants.
- Commonly used pressure sensor types in the petrochemical industry include strain gauge type, piezoresistive type, and capacitive type, selected based on measurement range, accuracy, and explosion-proof requirements. Sensors are typically equipped with flameproof or intrinsically safe explosion-proof housings and have obtained corresponding certifications. The specific applications are described below from three perspectives: reactor pressure control, distillation tower differential pressure monitoring, and pipeline pressure protection and interlocking.
- Specific scheme
- Reactor pressure control and emergency relief
- In chemical reaction processes such as polymerization reactors and hydrogenation reactors, pressure fluctuates. Pressure sensors are installed on the top or side pressure tapping ports of the reactor to measure the internal pressure in real time. Based on the deviation between the pressure value and the setpoint, the control system adjusts the feed valve, heating steam, or cooling water flow rate to maintain the reaction pressure within the process requirements. When the pressure exceeds a safety threshold, the system issues an alarm and automatically opens the emergency relief valve or initiates an emergency shutdown procedure to prevent overpressure explosion. This solution is widely used in oil refining, chemical, and fine chemical fields, ensuring reaction process safety and product quality.
- Distillation tower differential pressure monitoring and indirect liquid level control
- Distillation towers achieve gas-liquid mass transfer through trays or packing. The tower differential pressure reflects the liquid load and operating state of the tower. The high-pressure side of the differential pressure sensor is connected to the tower bottom, and the low-pressure side to the tower top. The measured differential pressure is related to the tower bottom liquid level and tray liquid holdup. The control system uses the differential pressure signal to determine whether abnormal conditions such as flooding or weeping have occurred. At the same time, the differential pressure can be used to indirectly calculate the tower bottom liquid level, providing redundancy with a liquid level meter. This solution optimizes distillation tower operation and improves separation efficiency.
- Pipeline pressure protection and safety interlocking
- Petrochemical pipelines transport flammable and explosive media. Abnormal pressure rise may damage equipment or cause leakage. Pressure transmitters are installed at critical positions such as compressor outlets, pump outlets, and pipe blind ends. When the detected pressure exceeds the alarm value, the control room issues an audible and visual alarm. When the pressure reaches the interlock setpoint, the system automatically stops the compressor or closes the pipeline emergency shutoff valve and simultaneously opens the vent valve to relieve pressure. In long-distance pipelines, along-line pressure monitoring data is also used for leak detection—by comparing the pressure difference and flow difference between adjacent stations, leak points can be quickly located. This solution provides multiple safety barriers for pipeline transportation.
- Conclusion
- Pressure sensors play multiple roles in monitoring, control, and protection in the petrochemical industry. In reactors, sensors achieve pressure regulation and overpressure emergency relief. In distillation towers, sensors monitor tower differential pressure to guide operation. In pipeline systems, sensors trigger pressure interlock protection to prevent rupture and leakage. The reliable application of pressure sensors is one of the fundamental guarantees for safe, stable, and long-term operation of petrochemical plants.
Pressure sensor: Pressure monitoring and pump/valve control solution for water treatment
- Water treatment plants consist of multiple units including water intake, coagulation, sedimentation, filtration, disinfection, and distribution. Pressure is an important parameter for pipeline transportation, membrane filtration, and pump set operation. Pressure sensors are used to monitor pipeline water pressure, filter differential pressure, and pump outlet pressure, enabling constant pressure water supply, filter backwash triggering, and energy-saving control of pump sets, ensuring efficient and stable operation of water treatment systems.
- Commonly used pressure sensors in water treatment include ceramic piezoresistive type, diffused silicon type, and strain gauge type, featuring corrosion resistance and waterproofing. The specific applications are described below from three perspectives: constant pressure control of water supply networks, differential pressure monitoring in membrane treatment systems, and pressure protection of pump stations.
- Specific scheme
- Constant pressure control of water supply networks
- In urban and rural water supply networks, water demand fluctuates over time. Constant-speed pump operation may lead to excessive or insufficient pressure. Pressure sensors are installed at the most unfavorable point of the network or at the pump outlet main pipe to monitor pressure in real time. The variable frequency drive receives the pressure signal, compares it with the setpoint, and automatically adjusts the pump speed to maintain constant network pressure. When water demand increases and pressure drops, the speed is increased to supply more water; when demand decreases, the speed is reduced. This solution achieves on-demand water supply, significantly reduces electricity consumption, and lowers the risk of pipe bursts.
- Differential pressure monitoring and cleaning reminder in membrane treatment systems
- In ultrafiltration, nanofiltration, and reverse osmosis membrane systems, contaminants accumulate on the membrane surface during operation, causing the differential pressure across the membrane to rise. A differential pressure sensor is connected to the feed side and permeate side of the membrane module to measure the transmembrane pressure in real time. The control system records the pressure trend. When the pressure reaches a preset cleaning value, it automatically triggers online chemical cleaning or physical backwashing to restore membrane flux. If the pressure continues to rise abnormally, the system alarms to prompt manual inspection or membrane replacement. This solution extends membrane service life and ensures product water quality.
- Pressure protection and water hammer prevention in pump stations
- In sewage lift stations and water supply pumping stations, water hammer pressure waves may occur during pump start and stop, damaging pipelines and equipment. Pressure sensors are installed before the check valve at the pump outlet to monitor outlet pressure and water hammer peaks. When a sharp pressure change exceeds a set threshold, the system automatically performs slow valve closure or adjusts the inverter acceleration/deceleration time to cushion the pressure impact. Additionally, pressure data can be used to determine whether the pump is suffering from cavitation or clogging. This solution improves the safety of pump station operation and reduces pipe burst and equipment damage accidents.
- Conclusion
- Pressure sensors play roles in monitoring, regulation, and protection in water treatment. In water supply networks, sensors enable constant pressure variable frequency control, saving energy. In membrane treatment systems, sensors monitor transmembrane pressure to guide cleaning. In pump stations, sensors provide pressure protection against water hammer. The application of pressure sensors improves the automation level and operational reliability of water treatment plants.
Pressure sensor: Pressure monitoring and patient safety solution for medical devices
- Modern medical devices such as ventilators, anesthesia machines, infusion pumps, and blood pressure monitors require precise measurement of gas or liquid pressure to ensure accurate treatment parameters and patient safety. Pressure sensors convert minute pressure changes into electrical signals for processing and feedback control by the device's main control system, serving as key sensing components in medical devices.
- The medical field imposes strict requirements on pressure sensors, including high accuracy, low drift, biocompatibility, and resistance to disinfection. Common types include silicon piezoresistive micro-pressure sensors (for respiratory airflow) and medical-grade liquid pressure sensors (for dialysis or infusion). The specific applications are described below from three perspectives: ventilator airway pressure monitoring, infusion pump occlusion detection, and non-invasive blood pressure measurement.
- Specific scheme
- Ventilator airway pressure monitoring and alarm
- During mechanical ventilation, ventilators need to control airway pressure to avoid barotrauma. Pressure sensors are installed at the inspiratory and expiratory ports of the ventilator to monitor peak airway pressure and positive end-expiratory pressure in real time. When the airway pressure exceeds the set high-pressure alarm limit, the ventilator automatically switches to a pressure relief mode or issues an alarm, prompting medical staff to check for airway blockage or patient coughing. If pressure is too low, it indicates a circuit leak or improper ventilator settings. Redundant pressure sensors can improve system reliability and ensure ventilation safety for critically ill patients.
- Infusion pump occlusion pressure detection
- Infusion pumps are used to precisely control the infusion rate of drugs or nutrients. When the infusion line is twisted, clamped, or the needle is blocked, the pressure after the pump rises. A pressure sensor is integrated into the pump's drive mechanism or line clamp to continuously monitor infusion pressure. When the detected pressure exceeds the occlusion threshold, the system immediately stops infusion and issues an alarm, preventing drug over-infusion or line rupture. This solution is applicable to scenarios such as intravenous infusion, enteral nutrition infusion, and patient-controlled analgesia pumps, providing an important patient safety safeguard.
- Oscillometric method in non-invasive blood pressure monitoring
- Electronic blood pressure monitors use the oscillometric method to measure blood pressure. A pressure sensor inside the cuff monitors both the cuff pressure and the superimposed pulse wave oscillations in real time. A microcontroller calculates systolic pressure, diastolic pressure, and mean arterial pressure by analyzing the amplitude changes of the oscillation wave. High-precision pressure sensors ensure the repeatability and accuracy of measurement results. This solution is widely used in hospital monitors, home electronic blood pressure monitors, and ambulatory blood pressure monitoring devices.
- Conclusion
- Pressure sensors play an indispensable role in medical devices. In ventilators, sensors monitor airway pressure to prevent barotrauma. In infusion pumps, sensors detect occlusion pressure to ensure infusion safety. In blood pressure monitors, sensors acquire cuff pressure and pulse waves to achieve non-invasive blood pressure measurement. Advances in medical pressure sensors have promoted the miniaturization, intelligence, and safety of medical devices.
Fire monitoring system: Multi-parameter real-time monitoring solution for fire facilities including pressure, weight, and inclination angle
- The reliability of fire protection systems is directly related to the safety of life and property. Parameters such as water pressure in fire protection pipelines, weight of fire extinguishers, and inclination angle of fire truck platforms need to be monitored in real time to ensure that fire facilities are in good condition. Traditional manual inspection has long cycles and low efficiency, making it difficult to detect hidden faults. The fire monitoring system integrates pressure sensors, load cells, and inclination sensors, uploading data to the cloud platform via IoT technology, enabling remote monitoring and fault early warning of fire facilities.
- This solution mainly includes three monitoring dimensions: fire protection pipeline pressure monitoring (to prevent underpressure or overpressure), fire extinguisher weight monitoring (to detect leakage or failure to replace after use), and fire equipment inclination monitoring (to detect whether fire truck outriggers or fire extinguisher boxes are tilted). The specific applications are described below from these three perspectives.
- Specific scheme
- Real-time pressure monitoring of fire protection pipelines
- Pressure sensors are installed at the fire pump outlet, the most unfavorable point of the pipeline network, and at fire hydrants to collect water pressure in real time. Data are transmitted wirelessly to the fire control center. When the pipeline pressure falls below the standard value, the system determines that there is leakage or an unopened valve, automatically issues an alarm, and notifies maintenance personnel. When the pressure is too high, it indicates possible water hammer or a pressure reducing valve fault. This solution replaces monthly manual pressure gauge readings, achieving second-level monitoring, allowing timely response to pipeline abnormalities and ensuring sufficient water pressure when a fire occurs.
- Fire extinguisher weight and pressure monitoring
- The internal pressure or agent weight of portable fire extinguishers is an important indicator of their effectiveness. A load cell or pressure sensor is integrated into the fire extinguisher base to monitor the total weight of the extinguisher or the pressure inside the cylinder in real time. When the weight or pressure falls below a set threshold (e.g., below 90% of the rated value), the system issues a replacement or refilling reminder and pushes a notification through the management platform. This solution is suitable for locations with a large number of fire extinguishers such as large shopping malls, factories, and hospitals, reducing manual inspection costs and preventing extinguisher failure.
- Inclination monitoring for fire vehicles and equipment
- When a fire truck is parked or operating, excessive body inclination may affect ladder operation or cause the vehicle to tip over. Inclination sensors are installed on the fire truck chassis or elevated platform to monitor longitudinal and lateral inclination angles. When the inclination exceeds the safe range, an audible and visual alarm sounds in the cab, reminding the driver to adjust the position or deploy outriggers. Similarly, for fire extinguisher boxes and fire hydrant cabinets, inclination sensors can be installed to monitor whether they have been hit and tilted or whether the cabinet door is not closed, promptly reporting abnormalities. This solution improves the operational safety of fire trucks and the integrity rate of fire facilities.
- Conclusion
- The fire monitoring system achieves comprehensive awareness of the status of fire facilities through multi-sensor fusion. Pressure sensors ensure normal water pressure in fire protection pipelines. Load cells or pressure sensors monitor the effectiveness of fire extinguishers. Inclination sensors detect the safe posture of vehicles and equipment. The application of this system significantly improves the intelligence level of fire management, transforming traditional periodic inspections into real-time online monitoring, providing reliable technical support for fire prevention and control.
