Yes, they connect to any LoRaWAN or MQTT infrastructure (Kerlink, Cisco, Milesight, MultiTech, etc.) for flexible integration with existing SCADA systems.
LNG Transfer Line Pressure Monitoring
Early detection of abnormal pressure behavior
Pressure
Quick Overview
| Problem | Pressure variations in LNG transfer lines can occur during loading/unloading operations and are not always continuously monitored along the full line. |
| Solution | SENSAiO pressure sensors monitor LNG transfer line pressure trends in real time. |
| Value | Improved visibility on hydraulic behavior, supporting earlier detection of abnormal pressure conditions. |
| ATEX | Suitable for LNG hazardous environments (Zone 1–2), compliant with ATEX / IECEx requirements. |
The Operational Challenge
LNG transfer lines are used during loading and unloading operations between storage tanks, carriers, and process units.
These operations involve dynamic flow conditions where pressure plays a critical role in:
- Ensuring stable transfer flow
- Preventing excessive mechanical stress on pipelines
- Avoiding operational disruptions
Pressure behavior in LNG transfer lines is influenced by:
- Flow rate changes during ramp-up or ramp-down
- Valve operations along the line
- Fluid density variations due to temperature effects
- Potential restrictions, partial blockages, or icing
From a physical perspective:
- Pressure reflects the balance between flow, friction, and system resistance
- Sudden pressure increases may result from rapid valve closure or flow restriction
- Pressure drops may indicate reduced flow or leakage conditions
Detection challenges include:
- Transfer operations are transient by nature
- Pressure changes can be localized and short-duration
- Instrumentation is often limited to main points
- Manual monitoring does not capture continuous behavior
As a result, abnormal pressure events may not be fully captured or analyzed.
Why Pressure Monitoring Matters
Pressure is a key indicator of hydraulic conditions during LNG transfer.
By continuously monitoring pressure:
- Normal operating profiles during transfer can be established
- Deviations from expected behavior can be identified
- Transient events can be captured and analyzed
Typical interpretations include:
- A pressure spike may indicate rapid valve action or transient surge
- A gradual pressure increase may correlate with restriction or buildup
- Pressure instability may reflect flow control issues
Pressure monitoring provides insight into real-time transfer conditions and system response.
SENSAiO Solution
SENSAiO deploys wireless pressure sensors installed along LNG transfer lines or at critical points such as:
- Upstream and downstream of valves
- Transfer connection points
- Sections prone to thermal or flow disturbances
Sensors continuously measure pressure and transmit data via LoRaWAN to a centralized monitoring platform.
The system provides:
- Continuous pressure trend monitoring
- Detection of abnormal pressure events
- Alerts based on thresholds or unusual patterns
It is important to clarify that:
- SENSAiO is a monitoring-only system
- It does not control transfer operations or valves
- It does not perform hydraulic modeling or surge protection
- It does not replace control or safety systems
The system supports operational analysis and investigation.
Results and ROI
ATEX Compliance and Safety
LNG transfer operations take place in hazardous environments with flammable gas presence. SENSAiO sensors:
- Are available with ATEX / IECEx certification for Zone 1–2
- Are suitable for installation on LNG pipelines and transfer systems
- Are designed for cryogenic and industrial environments
All equipment is delivered with appropriate certification documentation.
SENSAiO systems are not safety systems and do not replace pressure protection systems or operational safeguards.
Integration and compatibility
| Protocols | LoRaWAN, MQTT, REST API |
| Gateways | Compatible with standard LoRaWAN gateways (Kerlink, Multitech, Cisco, etc.) |
| Systems | Integration with LNG terminal monitoring and maintenance platforms |
| Deployment | Suitable for retrofit on existing transfer infrastructure |
FAQ - Common Questions
Are Sensa.io sensors compatible with any gateway or network?
What ATEX certifications apply to Sensa.io devices?
All hazardous-area models are certified Ex II 2 G Ex ia IIC T4 Gb and IECEx approved for Zones 0–2.
What is the typical battery life?
Up to 10 years at 15-minute intervals, depending on signal strength and environment.
How are the sensors integrated into existing systems?
Through standard protocols — LoRaWAN, Modbus, MQTT, REST API — no proprietary middleware needed.
How does predictive maintenance reduce OPEX?
Early anomaly detection reduces emergency interventions by 30–40 %, extends equipment life and lowers energy costs.
What does the Sensa.io Valve Position Sensor actually measure?
The device detects real-time valve position states—open, closed, or intermediate—with high accuracy. It continuously sends this information wirelessly to your monitoring dashboard.
Can this sensor detect partial valve movement or stuck valves?
Yes. The sensor identifies irregular patterns such as partial movement, delayed response, or stuck valves, enabling early maintenance before failure occurs.
Is this sensor suitable for manual, motorized, and actuated valves?
Yes. It supports a wide range of valve types including ball, gate, butterfly, actuator-driven, and manual valves.
How fast does it update the valve position?
You can configure the reporting interval—from seconds to minutes—depending on your operational and battery needs.
How long does installation take?
Most installations take under 10 minutes. The sensor mounts using brackets or clamps without modifying existing valves.
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Trusted by a Worldwide Network
With partners in over 20 countries, SENSAiO delivers rugged sensor solutions to the toughest environments — everywhere.
