Academy Discounts

Get a 10% discount on all eLearning courses until November 29, 2020. Use code ELEARN10 at checkout.

Choosing HIPS over PRV - It's More Than Risk Reduction

  • Type:
    Conference Presentation
  • Conference Type:
    AIChE Spring Meeting and Global Congress on Process Safety
  • Presentation Date:
    April 24, 2018
  • Duration:
    30 minutes
  • PDHs:

Share This Post:

The use of the term “High Integrity Protective System” or HIPS has changed from 2000 when this author won the 2000 best paper award from the Loss Prevention Symposium on the subject. Initially, the term applied to some very specific applications of safety instrumented systems (SIS). Now, it seems to have become a catchall term for any SIS implemented to minimize the need to relieve excess pressure through a pressure relief valve (PRV). It is unlikely that this trend will cease, as more facilities use the equivalent risk reduction argument to justify relying on instrumentation and controls for overpressure protection in lieu of a conventionally designed PRV and disposal system.

HIPS are more complex systems than PRVs, but the equivalent risk reduction argument is a strong one. A HIPS can provide protection similar to or better than a pressure relief device for loss events caused by process upsets. Actually achieving similar risk reduction in the process operating environment takes significant effort beyond rigorous HIPS design and management, which was discussed in the 2000 paper and many others over the last 17 years. This paper presents implementation challenges that must be understood before a HIPS can be expected to provide overpressure protection without causing potentially dangerous side effects:

  • Process Design
  • Functional Specification
  • Design Calculations
  • Engineering
  • Installation and Operation
  • Maintenance
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 $19.00
Employees of CCPS Member Companies Free
AIChE Graduate Student Members Free
AIChE Undergraduate Student Members Free
Non-Members $29.00