Application Case: Ultra-Short Fork Tuning Fork Level Switch for Steam Separator
In modern industrial production processes, the steam separator plays a crucial role. It is responsible for separating condensed water from steam, ensuring the efficiency and safety of downstream equipment. However, the internal conditions of a steam separator are extremely complex, characterized by high temperature, high pressure, limited installation space, and frequent fluctuations at the gas-liquid interface. These demanding conditions place extremely high requirements on level measurement instruments. Traditional level switches often fail to operate stably in such applications due to large size, insufficient temperature resistance, or poor anti-interference capability.
Recently, Jiwei Automation, a leading domestic brand in level measurement technology, successfully solved multiple steam separator level monitoring challenges with its independently developed tuning fork level switch. With its innovative ultra-short fork design and outstanding temperature resistance and anti-interference performance, the product perfectly adapts to confined spaces and redefines the standard for compact level measurement solutions.
1. Industry Pain Points: Narrow Space and Complex Medium Challenges
In a technical renovation project at a large petrochemical enterprise, the customer faced a difficult level measurement problem. The steam separator, as a key auxiliary device, had a compact internal structure with extremely limited installation space. Previously, the customer tried a low-end brand level switch, but encountered several issues:
Installation Constraints:
Traditional tuning fork or float level switches had long fork lengths. After insertion, they could easily touch internal walls or baffles, causing installation difficulties or signal errors.
Frequent False Alarms:
The steam separator contained significant bubbles and foam. Due to density fluctuations, low-end instruments lacking advanced anti-interference algorithms mistakenly detected foam or bubbles as real liquid levels, leading to frequent false alarms and reduced production efficiency.
High-Temperature Challenges:
The internal steam temperature was relatively high. Ordinary instruments experienced shortened electronic component lifespan under thermal radiation, resulting in high maintenance and replacement costs.
To overcome these challenges, the customer required a level switch that could fit into tight spaces while maintaining reliable performance under harsh operating conditions. After thorough market evaluation, the customer selected Jiwei.
2. Jiwei Solution: Ultra-Short Fork Design for Space Optimization
To address the special conditions of the steam separator, Jiwei’s technical team recommended its flagship product — the tuning fork level switch. This product integrates multiple core technologies, achieving superior performance compared with conventional instruments.
1. 40mm Ultra-Short Fork: Breaking Space Limitations
One of the most significant features of the Jiwei tuning fork level switch is its ultra-short fork length of only 40mm. Traditional forks are usually over 100mm in length, which makes installation difficult in compact systems such as pipelines and separators.
Through precise acoustic modeling and structural optimization, Jiwei successfully reduced the fork length to 40mm. This breakthrough design allows the instrument to be installed in extremely narrow spaces, including small pipelines and steam separators. In this project, the device was installed in a previously “impossible-to-install” location, completely solving the space limitation issue.
2. Extreme Temperature Resistance: Up to 400°C
Steam separators often operate under high-temperature conditions. Jiwei’s tuning fork level switch is designed with special high-temperature materials and heat-dissipation structures, supporting process temperatures up to 400°C.
This performance significantly exceeds industry standards and ensures reliable operation in chemical, oil, pharmaceutical, and other high-temperature industries. Even under continuous high-temperature steam conditions, the instrument maintained stable frequency output without drift or failure.
3. Low-Density Detection and Anti-Interference Capability
Condensed water in steam systems may have low density and is often accompanied by foam. Jiwei’s tuning fork level switch uses precise tuning technology capable of detecting liquids with densities as low as 0.5 g/cm³.
With its advanced anti-interference design, the device effectively resists:
- Foam interference
- Bubble disturbances
- Mechanical vibration
- Process fluctuations
Even under severe liquid surface turbulence, the instrument outputs accurate switching signals without false alarms.
3. Certifications and Safety Design
Safety is a fundamental requirement in industrial applications. Jiwei prioritizes product certification and compliance.
The tuning fork level switch has obtained:
- SIL2 / SIL3 certification
- CE certification
- 3C certification
- EAC certification
- Intrinsic safety and explosion-proof certifications (gas and dust, dual protection)
These certifications ensure compliance for use in safety-critical applications.
High Reliability Design
Based on the vibration frequency change principle, the device contains no mechanical moving parts, eliminating wear issues. Its Mean Time Between Failures (MTBF) exceeds industry standards, significantly reducing maintenance costs.
Food-Grade Compliance
The product also meets national food-grade standards, making it suitable for applications in the food and pharmaceutical industries.
4. Implementation Results and Customer Feedback
During installation, Jiwei engineers worked closely with the customer’s technical team to complete setup and commissioning efficiently. With flexible output options — including relay, two-wire, NAMUR, and transistor outputs — the instrument seamlessly integrated into the existing DCS control system.
After several months of continuous operation, the customer reported:
- Easy installation due to 40mm fork design
- Stable performance under high-temperature and foam conditions
- Zero false alarms
- Maintenance-free operation
The project manager commented that the Jiwei tuning fork level switch exceeded expectations in both reliability and temperature resistance, and proved to be a trustworthy long-term solution.
5. Conclusion
From this steam separator application case, it is clear that the Jiwei tuning fork level switch successfully addresses level measurement challenges in compact and high-temperature environments. With its ultra-short fork design, extreme temperature resistance, strong anti-interference capability, and comprehensive safety certifications, the product demonstrates the strength of China’s high-end level measurement technology.
As industrial automation continues to advance, selecting a high-performance and highly reliable level switch is essential for ensuring production safety and efficiency. Jiwei will continue to drive innovation and provide precise, dependable level measurement solutions to global customers.