Methods for Evaluating and Reducing the Risks of Pneumatic Pressure Testing of Vessels and Piping

Source: AIChE
  • Type:
    Conference Presentation
  • Conference Type:
    AIChE Spring Meeting and Global Congress on Process Safety
  • Presentation Date:
    March 22, 2010
  • Duration:
    30 minutes
  • Skill Level:
  • PDHs:

Share This Post:

Hydrostatic testing of piping and vessels designed to handle LNG or other cryogenic liquids is problematic because of the need to remove residual water.

Pneumatic pressure testing of piping and vessels at moderate-to-high test pressures is more hazardous than hydrostatic pressure testing because the stored energy is much greater with compressed gases. Hazards from loss of containment during pneumatic pressure testing include both blast overpressure and missiles.

In applications where pressure testing with liquids is undesirable, such as in cryogenic piping systems and vessels, pneumatic pressure testing can only be justified when care in fabrication and in non-destructive examination of vessels and piping reduces the probability of loss of containment to such a small value that risk is acceptable.

This paper outlines methods for evaluating the risks of pneumatic pressure testing of vessels and piping, as well as methods of risk reduction.

This recording is FREE to members of the Fuels and Petrochemicals Division of AIChE. AIChE members may join the Division for only $10. Join F&PD now and return to this page with your new log-in and you will receive this presentation for FREE.
F&PD Members: Simply click on “click here to buy this archived webcast ” below and your ‘0’ price will appear in your shopping cart.
Once the content has been viewed and you have attested to it, you will be able to download and print a certificate for PDH credits. If you have already viewed this content, please click here to login.



Do you already own this?



AIChE Member Credits 0.5
AIChE Members $15.00
AIChE Fuels and Petrochemicals Division Members Free
AIChE Undergraduate Student Members Free
AIChE Graduate Student Members Free
Non-Members $25.00