Valve
diagnostics can be done from a number
of data inputs
- Acoustic
(Vibration)
- Pressure
- Displacement
- Flow
Sensing
Testing
is primarily performed on a test stand,
but can be done on-line. On-line testing
would require lifting the valve to obtain
actual set pressure values.
On-line
testing can be performed to predict set
pressure valves without lfiting the valve
Acoustic
data reveals events such as chatter or
simmer. By simultaneously capturing the
pressure data, a correlation can be made
from this information to predict the
Set Pressure - This correlation is OEM-specific.
Calculations
are determined based on ASME Code requirements.
Safety
Valve (Steam), Safety Relief Valves (Compressible
or Incompressible mediums) and Relief
Valves (Incompressible Mediums)
Air,
Steam, Gas or Water
Benefits
of Diagnostic Testing
