Unmonitored PRVs Create Hidden Risks
- PRV lift events often go undetected, leaving facilities exposed
- Manual inspections miss early degradation and spring relaxation
- API 576 recommends documented performance history, yet most plants lack it
- Overpressure events can trigger unnecessary shutdowns and six‑figure losses
- Fouling and corrosion can cause sticking or chatter, but remain unseen until failure
Continuous, Data‑Driven PRV/PSV Monitoring
Real-Time Status Tracking
- Detect lift events, position changes, chatter
- Event timestamps & duration logging
Condition Monitoring & Diagnostics
- Identify sticking, partial lifts, spring relaxation
- Trend degradation over time
Automated Compliance Data
- API 520/521/576 alignment
- Digital inspection history for audits
How it works
The acoustoSENSE sensor is very quickly secured to the asset, for example the valve casing, via a mechanical clamp. It continuously listens for acoustic emissions generated by mechanical activity, wear, leaks, or valve events.
Signals from the sensor are captured in the Node that is always-on, listening for acoustic events. The raw signal is automatically processed and the acoustic event metrics are transmitted in a data packet to the Gateway over LoRaWAN (up to 10km distance).
High-resolution acoustic data and analysis is visualized in customer data platforms or Tribosonics’ cloud platform. Real-time customizable alerts allow users to react quickly to active problems on monitored assets. Data is also exportable for further analysis and contextualization.
Built for Reliability, Maintenance, and Process Safety
Reliability Engineers
- Spot degradation trends
- Plan maintenance based on actual valve performance
Maintenance Teams
- Reduce manual checks
- Confirm valve resets correctly after lift
Process Safety Engineers
- Maintain auditable API 521 documentation
- Confirm PRVs are protecting assets as designed
Key benefits of acoustoSENSE PRV monitoring system
Highly resistant to false positives
100-500 kHz acoustic sensing range, complies with international ISO, ASME, JP, etc. standards on leak detection.
Simplified sensor installation and positioning of the radio antenna for reliable data transmission
Separate sensor and node; a range of mounting configurations.
Precision insights into PRD/PRV operation, behaviour, performance and health (e.g. simmer, chatter, cycling, flutter)
Real-time, always-on processing of all acoustic signals providing high resolution data with waveform envelope.
No need to remove the unit from a HazLoc environment for battery replacement
Ultra Low Power with up to 10 year battery life and ‘hot swappable’ battery.
Low gateway to node ratio meaning lower CAPEX and OPEX cost
Wireless LoRaWAN enabling up to 10km transmission distance.
No modification required to asset enabling quick installations
Non-invasive installation, applicable to all PRD sizes & configurations.
Simple to operate and use with future proof onboard processing capability
Over the air configurable and updateable via Bluetooth from mobile devices.
Universally deployable in any customer environment
ATEX, IECEx, UL, INMETRO Intrinsically Safe Hazardous Locations certified.
Ready to see acoustoSENSE PRV monitoring in action?
Request a demo.
