Trip & Throttle Valve Reliability

The 21st Ethylene Producers Conference
2011 AIChE Spring Meeting
AIChE Spring Meeting and Global Congress on Process Safety
March 15, 2011 - 8:00pm

Trip & Throttle Valve Reliability

Trip & Throttle (or Stop) valves are used in ethylene plants to isolate the energy to steam turbines when required. They are critical Safety Protection components with a high impact on a plant’s reliability; however, they operate under tough conditions like:High pressure & temperature

  • Very infrequent operation
  • And specifically in an Ethylene plant, very limited opportunities to test or maintain

During 2009/2010, a European Ethylene Producers Committee (EEPC) Issue Group was established to collect and share practical experience and knowledge about the performance of these valves and best practices for testing and maintenance. The effort was concentrated on “special purpose critical turbines”.

This paper summarizes the information compiled and analyzed by the Issue Group from 131 units in 28 European Ethylene plants, including information like:

  • Valve manufacturer and type
  • Maintenance criteria
  • Relationship with Safety protection (SIL), testing
  • Failure data
Professional Development Hours
0.5 PDHs
You will be able to download and print a certificate for these PDH credits once the content has been viewed. If you have already viewed this content, please click here to login.

Would you like to access this content?

No problem. You just have to complete the following steps.

You have completed 0 of 2 steps.

  1. Log in

    You must be logged in to view this content. Log in now.

  2. Purchase Technical Presentation

    You must purchase this technical presentation using one of the options below.
    If you already purchased this content recently, please click here to refresh the system's record of ownerships.


Credits 0.5 Use credits
List Price $25.00 Buy now
AIChE Members $15.00 Buy now
AIChE Undergraduate Student Members Free Free access
AIChE Graduate Student Members Free Free access
Related Topics: 
Skill Level: