Industry Challenges in High-Temperature Liquid Level Measurement and the LY-BP500 Solution

In industrial sectors such as petrochemicals and power generation, liquid level measurement in ultra-high-temperature environments has always been a severe challenge for operators. Traditional level transmitters such as CYB-33, JKU901 and similar products often suffer from signal drift, seal failure and other issues under operating conditions above 150℃, while the LY-BP500 high-temperature guided pressure type level transmitter, through its stainless steel cable barrel structure design, raises the upper temperature resistance limit to 400℃, while adopting a military-grade ceramic piezoresistive sensor to keep long-term stability error within ±0.1%FS. This breakthrough design solves the industry pain point of pressure guide tubes being blocked by crystallization of high-temperature media, significantly reducing maintenance frequency.

Core Parameter Comparison: Technical Differences Between LY-BP500 and Similar Products

Performance Verification in Real Application Scenarios

In a molten salt storage tank project at a large chemical plant, the LY-BP500 and HMBUS504 high-temperature guided pressure type level transmitters underwent parallel testing for 18 months. The data shows: in a 320℃ molten salt environment, the zero-point drift of the LY-BP500 was only 0.05%/year, far lower than the 0.3%/year of the HMBUS504. Its specially designed corrugated isolation diaphragm effectively prevented crystals from entering the pressure guide channel, while the comparison model required monthly shutdowns for cleaning due to crystallization problems. This difference directly reduced the user's total operation and maintenance cost of the LY-BP500 by 42%.

Three Golden Rules for Procurement and Selection

For the selection of high-temperature level transmitters, operators should focus on: 1）temperature adaptability——the peak medium temperature must be lower than 80% of the product's nominal value; 2）process connection method——flange standards such as DN-24 must match the existing pipeline; 3）explosion-proof certification——in the petrochemical field, compliance with ATEX/IECEx certification is mandatory. The LY-BP500 series provided by Xi'an Shenghongchuang Instrument Co., Ltd. has passed SIL2 functional safety certification, and its modular design supports quick on-site replacement of sensor components, greatly shortening downtime.

Common Technical Misunderstandings and Operating Recommendations

Many users mistakenly believe that all stainless steel cable barrel type level sensors have the same temperature resistance, but in fact the cable sheath material of models such as CW801G will carbonize above 250℃. The correct approach is: 1）regularly inspect the condition of the cable outer jacket; 2）avoid thermal shock caused by rapid cooling and heating; 3）maintain at least a 15° inclination angle of the pressure guide tube during installation. As a professional manufacturer, we recommend online calibration every 6 months using a standard pressure source to ensure the reliability of the measurement chain.

Why Choose Xi'an Shenghongchuang's Solution

Relying on the R&D advantages of the national-level Xixian New Area, we have 20 years of experience in high-temperature sensor manufacturing. The LY-BP500 series adopts a temperature compensation algorithm with independent intellectual property rights, and its performance has passed a 1000-hour aging verification by a third-party testing organization. Compared with imported brands, our localized service team can provide a 48-hour emergency response and support customized modifications （such as adding a PT100 temperature compensation module）. Click to contact us for a free operating condition assessment report and let us match you with the optimal high-temperature liquid level measurement solution.