Non-Intrusive Acoustic Valve Inspection (NAVI)

Non-Intrusive Acoustic Valve Inspection (NAVI) is a technology to identify condition of various valves type and applications while providing leak severity assessment as well as quantification of leak rate.

Passing valves can become a major safety risk when Isolation of a system is not possible during critical times such as Emergency Shutdown. Passing valves can also become the main cause for Loss of production as well as environmental related issues leads by unnecessary flaring.

Our NAVI system is simple, quick and non-intrusive. Using rugged, intrinsically-safe equipment with digital signal analyser for data acquisition. Full data analysis will be processed by a NAVI level 2 operator which had undergo principal training and met competency hours.

Our equipment is sent for calibration yearly to ensure result is of highest level of accuracy.

Features

WORKING PRINCIPAL

Our Non-Intrusive Acoustic Valve Inspection system works based on the acoustic characteristic of fluid flow through a valve.

Working Principal

By comparing these two signals, conclusion can be made to determine the internal condition of the valve.

Test requirement:

Valve in fully closed condition.
There is a significant differential pressure across the valve.

Non-Intrusive Acoustic Valve Inspection (NAVI)