In continuous operation scenarios such as petrochemical and chemical production, differential pressure and pressure measurement are truly core links that directly affect production safety and equipment stability. The metal capacitive differential pressure transmitter, with its corrosion resistance, stability, and high accuracy, perfectly adapts to the complex working conditions of the chemical industry, making it an indispensable measurement partner for many enterprises in continuous production.

Core Working Principle
The core sensing element of this transmitter is a metal capacitor, which measures differential pressure through capacitance sensing. When the differential pressure of the measured medium acts on the sensor's isolation diaphragm, the diaphragm undergoes a slight displacement, causing the capacitance value between the two metal electrodes to change accordingly. The device captures this capacitance change via a dedicated circuit and converts it into a standard electrical signal output, enabling accurate differential pressure measurement. Moreover, its unique isolation structure effectively blocks chemical corrosion and on‑site interference, ensuring reliable measurement even under complex conditions.
Key Performance Advantages
1. Excellent Corrosion Resistance: Manufactured with corrosion‑resistant metal materials and isolation diaphragms. Whether handling highly corrosive chemical media such as acid/alkali solutions or organic solvents, the transmitter resists erosion and damage, significantly extending its service life.
2. High Measurement Accuracy and Stability: With high accuracy and strong anti‑interference capability, common on‑site disturbances such as temperature fluctuations and equipment vibration do not affect its measurement data, providing reliable references for production control.
3. Wide Range Adaptability: The differential pressure measurement range covers a broad spectrum. Whether the process requires low or high differential pressure, the transmitter can be flexibly adapted to actual needs without replacing equipment.
4. Suitable for Harsh Conditions: Robust sealing and protection against dust, water, and impact enable long‑term stable operation even in chemical environments with high temperature, high humidity, and heavy dust, reducing the need for frequent maintenance.
5. Easy Installation and Maintenance: The compact design allows flexible installation at various angles. Simplified maintenance reduces equipment downtime and lowers operational costs.
Typical Applications
Petrochemical Industry: Whether in oil refining, ethylene production, or fertilizer processing, monitoring the liquid level and pressure difference of towers, reactors, storage tanks, and other key equipment helps stabilize processes and prevent production anomalies.
Chemical Synthesis Scenarios: In fine chemical and pharmaceutical chemical synthesis, differential pressure changes inside reactors directly affect product quality. Using this transmitter enables precise control of reaction conditions, ensuring consistent product quality.
Fluid Conveying Systems: Differential pressure monitoring of chemical media pipelines relies on this transmitter to detect issues such as blockages or leaks early, preventing potential safety hazards and production interruptions.
Environmental Protection Processes: In chemical wastewater and exhaust gas treatment, differential pressure monitoring is critical for ensuring that processes meet regulatory emission requirements, avoiding non‑compliance risks.
Why Choose Mihui's Metal Capacitive Differential Pressure Transmitter
Mihui Technology has years of experience in the pressure measurement field. This metal capacitive differential pressure transmitter benefits from mature processes and rigorous quality control throughout R&D and production. Before leaving the factory, each unit undergoes multiple tests, including corrosion resistance tests and pressure cycle tests, ensuring it can withstand the demanding conditions of the chemical industry. Reliable and practical, it not only meets the precise measurement needs of continuous production but also helps enterprises save on operation and maintenance costs – making it the preferred choice for differential pressure measurement in the chemical sector.
Partner with Mihui Technology for Your Chemical Pressure Measurement Needs
Looking for a robust, corrosion‑resistant, and highly accurate differential pressure transmitter? Our metal capacitive transmitter is field‑proven in petrochemical, chemical synthesis, and environmental applications. Contact us today to discuss your requirements or request a quote.
📧 Email: mihuitec@gmail.com
📞 Phone: +86 18066965135
🌐 Website: www.mihuitec.com
