Capillary Differential Pressure Transmitter

Hongnuo (shenyang) General Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of capillary differential pressure transmitter in China. Welcome to buy high quality capillary differential pressure transmitter at competitive price from our factory. We also accept customized orders.

Please see the Specifications for more details. 

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Chemical and Petrochemical:
Used for isolated measurement when handling highly corrosive media or volatile, polymerizable liquids such as ethylene and propylene; also employed for liquid level and interface measurement in equipment like reactors and distillation columns.

 

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Oil Refining:
Used to measure high-temperature, high-viscosity, and crystallization-prone media such as crude oil, residual oil, and asphalt. In applications like column bottoms and tank farms, it prevents pressure-sensing lines from becoming clogged due to the medium cooling and solidifying.

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Pulp and Paper:
Handles media containing high levels of suspended solids (pulp) or highly alkaline substances that would easily clog or corrode standard pressure-sensing devices; the dual-flange design effectively withstands these harsh slurry-handling conditions.

1. The core sensing unit is positioned at the very top of the metal housing, maintaining a physical gap between it and the lower flange and diaphragm. This is not merely a structural arrangement but a design that achieves both mechanical and thermal isolation; process medium temperature fluctuations and installation stresses are effectively blocked rather than directly transmitted to the sensor, providing the physical foundation for long-term stability and low drift. In contrast, most competing products utilize designs where the sensor is directly exposed to pressure or heat conduction paths.

2. An integrated, independent temperature sensor provides digital compensation for both the silicon chip and the entire electronic assembly. Key specification: temperature effect ≤ ±0.04% URL/10K. This significantly minimizes measurement errors caused by diurnal or seasonal temperature variations across a wide operating range (-40 to 85°C), moving beyond a simple reliance on hardware-based temperature compensation.

3. An external "one-touch" zeroing button supports operation under pressure in hazardous areas-eliminating the need to open the housing or use a handheld communicator-thereby meeting the need for convenient routine maintenance in explosion-proof zones.

This product is distinguished by its approach: ensuring fundamental reliability through physical isolation and electrical reinforcement, enhancing operational accuracy via precision algorithms that compensate for real-world conditions, and simplifying on-site implementation through flexible configuration.

• Measurement accuracy and long-term stability
• Interference resistance and adaptability
• Minimal temperature influence
• High installation tolerance