Yes, they connect to any LoRaWAN or MQTT infrastructure (Kerlink, Cisco, Milesight, MultiTech, etc.) for flexible integration with existing SCADA systems.
LNG Pump Vibration Monitoring
Earlier detection of mechanical degradation
Vibration
Quick Overview
| Problem | Mechanical degradation in LNG pumps can develop under cryogenic conditions and remain undetected between inspections. |
| Solution | SENSAiO vibration sensors continuously monitor dynamic behavior of LNG pumps. |
| Value | Improved visibility on mechanical condition, supporting earlier identification of abnormal vibration patterns. |
| ATEX | Suitable for hazardous LNG environments (Zone 1–2), compliant with ATEX / IECEx requirements. |
The Operational Challenge
LNG pumps are critical assets used for:
- LNG transfer between storage tanks and process units
- Loading and unloading operations
- Circulation within cryogenic systems
These pumps operate under demanding conditions:
- Extremely low temperatures (cryogenic range)
- High rotational speeds
- Continuous or semi-continuous operation
Mechanical degradation mechanisms include:
- Bearing wear under cryogenic lubrication conditions
- Rotor imbalance or shaft misalignment
- Cavitation due to local pressure decrease below vapor pressure
- Structural stresses from thermal contraction
From a physical standpoint, these issues generate:
- Changes in vibration amplitude
- Variation in vibration frequency components
- Transient or intermittent vibration events
Detection challenges include:
- Limited accessibility of pumps inside cryogenic installations
- Periodic manual measurements
- Early-stage defects producing subtle vibration changes
- Harsh environment affecting instrumentation
As a result, degradation may evolve before being clearly identified.
Why Vibration Monitoring Matters
Vibration monitoring captures the mechanical response of rotating equipment.
By continuously measuring vibration:
- Baseline signatures can be established for normal operation
- Deviations from expected behavior can be detected
- Trends can be analyzed over time
Typical interpretations include:
- Increasing vibration amplitude may indicate progressive mechanical wear
- Changes in frequency content may correlate with imbalance or bearing issues
- Intermittent vibration spikes may reflect cavitation or unstable operation
Vibration data provides an indirect but sensitive indication of pump condition.
SENSAiO Solution
SENSAiO deploys wireless vibration sensors installed on LNG pump housings or bearing locations.
Sensors continuously measure vibration and transmit data via LoRaWAN to a centralized monitoring platform.
The system provides:
- Continuous vibration trend monitoring
- Detection of abnormal vibration patterns
- Alerts based on deviations from baseline behavior
It is important to clarify that:
- SENSAiO is a monitoring-only system
- It does not perform advanced spectral diagnostics equivalent to specialized analyzers
- It does not automatically diagnose root causes
- It does not replace machinery protection or shutdown systems
The system supports condition monitoring and maintenance investigation.
Results and ROI
ATEX Compliance and Safety
LNG facilities are classified hazardous due to the presence of flammable gases. SENSAiO sensors:
- Are available with ATEX / IECEx certification for Zone 1–2
- Are designed for operation in cryogenic and gas-rich environments
- Can be installed on rotating equipment in process areas
All equipment is provided with appropriate certification documentation.
SENSAiO systems are not safety systems and do not replace machinery protection systems or emergency shutdown systems.
Integration and compatibility
| Protocols | LoRaWAN, MQTT, REST API |
| Gateways | Compatible with standard LoRaWAN gateways (Kerlink, Multitech, Cisco, etc.) |
| Systems | Integration with LNG monitoring and maintenance platforms |
| Deployment | Suitable for retrofit on existing LNG pumps |
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.
