In high-temperature and high-pressure environments, how can ultra-high-precision level measurement be achieved? The SK1151-33L high-temperature remote diaphragm seal level transmitter adopts a stainless steel capillary design and was specially developed for extreme working conditions. As a flagship product of Xi'an Shenghongchuang Instrumentation Co., Ltd., its outstanding performance has been validated in numerous industrial scenarios, making it a trustworthy choice for technical evaluators.

I. Technical Performance and Core Advantages

The SK1151-33L uses a combination of 316 stainless steel material and a Hastelloy C diaphragm, can withstand a medium temperature of -40℃~100℃, covers a measuring range from 0-0.2kPa to 10MPa, and delivers accuracy up to ±0.1% (when the turndown ratio is 10:1). Its unique remote diaphragm seal structure transmits pressure through silicone oil and, together with HART protocol digital signal output, achieves temperature stability of ±0.25%/55℃. Compared with traditional models such as UMD-98, this product has a long-term stability error of only ±0.15%/6 months in scenarios such as petrochemical and electric power applications, and it has passed Exd Ⅱ CT6 explosion-proof certification.

II. Application Breakthroughs Under Extreme Working Conditions

In a case at a refinery in Shaanxi, the SK1151-33L successfully replaced an imported brand for monitoring a 380℃ high-temperature residual oil tank. Its capillary structure solved the seal failure problem caused by thermal expansion in models such as CYB-34, and together with the redundant system composed of domestic capacitive pressure transmitter ZP1151, improved level control accuracy to ±2mm. This solution has passed IEC801 electromagnetic radiation certification, extended the maintenance cycle to 3 years, and reduced overall costs by 40%.

III. Key Indicators for Selection and Procurement

IV. Why Choose Shenghongchuang

As a high-tech enterprise in Xixian New Area, we have 18 years of sensor R&D experience, and all products have passed CNAS laboratory verification. In response to upgrade needs for older models such as ND-24, we provide customized retrofit services——while retaining the original flange interface, the turndown ratio is increased to 50:1. Our technical team can provide 72-hour response service and also offers the High-Temperature Level Measurement White Paper free of charge (including comparative data for competing products such as CS-PT450).