Core Performance Analysis of the XT21R High-Temperature Pressure-Guided Level Transmitter

In high-temperature industrial environments, the accuracy of level measurement is directly related to production safety and efficiency. The XT21R high-temperature pressure-guided level transmitter developed by Xi'an Shenghongchuang Instrumentation Co., Ltd. adopts a 316 stainless steel cable-cylinder structure, and its core advantage lies in its breakthrough solution to the signal drift problem under ultra-high-temperature operating conditions. According to comparative test data, this product can still maintain a measurement accuracy of ±0.25%FS in a continuous 300℃ working environment, which is far higher than the industry average.

The product adopts unique pressure-guided isolation technology, physically isolating the high-temperature medium from the sensing element through a double-diaphragm structure. This design not only extends the service life of the sensor, but also achieves the following key performance indicators:

• The temperature compensation range is extended to -20~300℃, covering the vast majority of industrial scenarios
• The medium-contact part adopts an integral forging process, eliminating the risk of weld leakage
• Standard IP67 protection rating, capable of withstanding high-pressure steam washing
• Response time ≤50ms, meeting the requirements of fast process control

Differentiated Comparison with Similar Products

Compared with the common domestic general-purpose pressure transmitter CYH-300 on the market, the XT21R has obvious advantages in high-temperature stability. Test data shows that after 1000 hours of continuous operation at 250℃, the zero-point drift of the CYH-300 reaches 0.3%FS, while the XT21R can still be controlled within 0.15%FS. This difference mainly comes from different sensing technologies—the XT21R uses a special alloy strain gauge, while general-purpose products mostly use standard diffused silicon sensors.

Typical Application Scenarios and Engineering Cases

High-Temperature Storage Tank Monitoring in the Petrochemical Industry

In a residue oil storage tank project at a large refinery, traditional level gauges required calibration on average every 3 months under 280℃ operating conditions. After switching to the XT21R transmitter and using the Gl/2 male thread installation method, 18 months of fault-free operation was achieved. Project data shows:

Boiler Steam Drum Water Level Control in the Power Industry

For the monitoring requirements of a 16MPa high-pressure boiler in a thermal power generating unit, the XT21R is directly installed on the steam drum body through an M20×1.5 threaded interface. Its pressure resistance reaches 32MPa, successfully solving the following pain points:

1. The pressure-guiding tube of traditional differential pressure transmitters is prone to crystallization blockage
2. Diaphragm capsule deformation errors caused by high temperature
3. Mechanical stress damage caused by frequent start-stop cycles

System Integration and Commissioning Points

To ensure that the XT21R delivers optimal performance, the following installation specifications should be noted:

• The installation position should avoid strong mechanical vibration sources
• The cable inlet should be kept inclined downward to prevent condensation
• It is recommended to use a temperature compensation module (optional)
• During initial commissioning, 3 full-scale cycle tests should be carried out

For scenarios requiring a higher degree of integration, you may refer to the modular design concept of CYH-300 to integrate the transmitter and display control unit for installation. This solution has already achieved good results in building automation control systems.

Industry Development Trends and Technology Outlook

With the advancement of Industry 4.0, high-temperature level measurement equipment is showing the following development trends:

• Integration of wireless transmission technology with high-temperature sensors
• AI algorithm-based compensation for temperature drift is becoming a new standard
• Breakthroughs in materials science are driving higher temperature resistance limits

The next-generation product currently under development by Xi'an Shenghongchuang will integrate self-diagnostic functions, enabling real-time monitoring of sensor health status, and is expected to further reduce preventive maintenance costs by 40%.

Summary and Technical Service Support

With its outstanding temperature resistance and measurement accuracy, the XT21R high-temperature pressure-guided level transmitter has become a preferred solution in industries such as petrochemicals and power. As a professional manufacturer of flow control equipment, Xi'an Shenghongchuang Instrumentation Co., Ltd. provides full-process technical support from model selection guidance to on-site commissioning.

If you need a solution for specific operating conditions or product sample testing, please contact our technical team immediately. You are also welcome to follow our newly released BTL902 series products, which have made further breakthroughs in adaptability to extreme environments.