PRV Set Point Accuracy

Conclusion
The National Board Inspection Code along with The
ASME PTC 25-2001 25 2001 provide input and recommendations
in regards to bench testing Pressure Relief Valves and
gives a basic guide on test bench layout and
characteristics. Although these recommendations
provide a base to follow they can still be open to
interpretation. These interpretations will be evident in
the differences in both the design’s design s and capabilities of
PRV test benches found throughout the industry.
PRV test bench users should be at least aware of these
differences and the impact they could have on the
accuracy of their set point results.