Liaoning Yifang Wisdom Technology Group Co., Ltd. is one of the leading manufacturers and suppliers of differential pressure type level transmitter in China. We are committed to offering high quality customized products for global clients. Please feel free to wholesale the newest differential pressure type level transmitter in stock here from our factory. For quotation, contact us now.
differential pressure type level transmitter

Basic Information
Conventional liquid level measuring equipment faces severe limitations in pressurized sealed tank scenarios. Ultrasonic and radar level gauges are easily affected by internal steam, pressure changes and gas volatility, resulting in data instability and measurement failure. Submersible level transmitters cannot be used in positive-pressure sealed containers and are prone to corrosion and fouling in viscous chemical media. Magnetic flap level gauges only support on-site display and cannot achieve high-precision remote signal transmission. Ordinary single-pressure sensors cannot offset tank internal gas pressure, leading to large level calculation errors. The Differential Pressure Type Level Transmitter thoroughly solves the pain points of level monitoring for industrial pressurized vessels. Adopting high-precision differential pressure detection principle, it collects pressure values of liquid side and gas side simultaneously, automatically deducts tank internal gas pressure, and converts net liquid pressure into accurate linear level height data. Equipped with imported high-stability pressure sensing core and intelligent temperature compensation algorithm, it eliminates measurement deviation caused by ambient and medium temperature changes. The isolated anti-corrosion diaphragm structure adapts to corrosive, viscous and easy-crystallization industrial liquids. Industrial high static pressure design withstands extreme working conditions of high-pressure reaction kettles and storage tanks. Supporting standard analog and digital signal output, it achieves long-term stable online monitoring and remote data transmission, being the core precision measuring device for sealed pressure vessel level control systems.
Features And Optional Customization
This industrial differential pressure level transmitter supports diversified personalized customization for chemical engineering, petrochemical, power plant and pharmaceutical pressurized tank monitoring projects. Unique dual-channel differential pressure detection effectively eliminates gas pressure interference, realizing accurate level measurement of positive-pressure sealed containers. High-precision sensing core ensures excellent linearity and repeatability with ultra-low zero drift and long-term stable performance. Built-in multi-dimensional temperature and pressure compensation algorithm automatically corrects data errors caused by complex working condition fluctuations. Isolated anti-corrosion pressure diaphragm structure resists acid, alkali, oily and viscous medium corrosion and adhesion. High static pressure resistance design adapts to high-pressure industrial vessel operation without precision attenuation. Industrial EMC anti-interference circuit resists strong electromagnetic noise and on-site signal interference. According to project demands, we can customize measuring range, static pressure grade, diaphragm material, flange specification, signal output mode and explosion-proof grade to meet refined level monitoring requirements of different pressurized working conditions.

Technical Specification
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Core Performance Parameters |
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Working Principle |
Dual-port differential pressure detection, offset gas pressure to calculate net liquid level |
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Applicable Scenarios |
Sealed tanks, pressurized vessels, reaction kettles and vacuum containers |
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Core Advantage |
Eliminate gas pressure interference, high static pressure resistance, ultra-low drift |
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Stability Technology |
Intelligent temperature & pressure compensation, digital filtering algorithm |
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Signal Output |
Optional 4-20mA analog / RS485 Modbus RTU digital signal |
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Structural Performance |
Isolated anti-corrosion diaphragm, high-pressure resistant industrial structure |
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Application Value |
Realize high-precision automatic level monitoring for pressurized sealed equipment |
Material & Industrial Design
- Diaphragm Material: 316L stainless steel / Hastelloy / tantalum sheet optional, full anti-corrosion
- Core Components: High-stability differential pressure sensing chip, isolated signal processing module
- Structural Design: Integrated high-pressure resistant housing, standard industrial flange connection
- Quality Inspection: Full-scale DP calibration, high static pressure test, temperature cycle aging test before delivery
Application Area
Suitable for chemical pressure reaction kettle level monitoring, petroleum sealed storage tank detection, power plant boiler auxiliary tank supervision, pharmaceutical sterile container level control, industrial high-pressure vessel liquid monitoring and other pressurized sealed container level measurement scenarios.
Available Design
Available Design
- Custom differential pressure range and high static pressure grade for different pressure vessel parameters
- Upgrade special anti-corrosion diaphragm material for strong acid and alkali corrosive media
- Select 4-20mA or RS485 signal output to match industrial PLC and DCS systems
- Custom explosion-proof grade and flange standard for hazardous and standardized industrial sites
Similar Product Recommendation
For open pool and conventional water level monitoring, please select Submersible Level Transmitter. For non-contact harsh environment measurement, choose Radar Level Material Level Gauge. For cost-effective general scenarios, refer to Ultrasonic Level Gauge.

Why Choose Us
Different from ordinary single-pressure sensors and non-contact level gauges that cannot offset tank pressure interference, our Differential Pressure Type Level Transmitter adopts professional dual-port differential pressure sampling design, which completely eliminates the influence of internal gas pressure and accurately captures real liquid level height. Industrial-grade high static pressure resistance and anti-corrosion structure adapt to various harsh pressurized and corrosive working conditions that conventional sensors cannot handle. Intelligent compensation technology ensures stable data output under fluctuating temperature and pressure conditions. High-precision and low-drift performance avoids frequent calibration and maintenance, greatly reducing industrial operation costs. It is the most professional and reliable dedicated level measurement solution for industrial sealed pressurized vessels.
Customer Service
We provide complete product datasheets, official calibration reports and flange installation drawings. Our technical team supports pre-sales working condition parameter matching and scheme customization, as well as after-sales equipment debugging and long-term technical support, ensuring stable and accurate industrial pressure vessel level monitoring.

FAQ
Q: What is the main advantage of DP level transmitter?
A: It can offset the internal gas pressure of sealed pressurized tanks, solving the inaccurate measurement problem of ordinary sensors in positive-pressure vessels, and achieves high-precision real-time liquid level monitoring.
Q: Can it work with corrosive and viscous media?
A: Yes. It supports customized 316L, Hastelloy and other anti-corrosion diaphragms, which can stably adapt to oily, viscous and acid-base corrosive industrial liquids.
Q: Will pressure and temperature fluctuations affect accuracy?
A: No. Built-in dynamic temperature and pressure compensation algorithm automatically corrects working condition fluctuations, maintaining consistent high precision and data stability.
Q: Is it compatible with industrial automatic control systems?
A: Absolutely. Standard 4-20mA analog and RS485 Modbus digital output are universally compatible with PLC, DCS, data loggers and cloud monitoring platforms for seamless system integration.
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