Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


PSV Sizing Software

PSV Sizing Software

PSV Sizing Software

What PSV Sizing software do most people use and what are your comments on it?

We currently use Farris SizeMaster but are looking to upgrade to a program with more capabilities (modify discharge coefficients, backpressure calculations with multiple relieving valves, etc.) We often do PSV sizing verifications of existing systems so we need a program that is catered to different valve manufacturers, services, and configurations.

RE: PSV Sizing Software

Most of your major valve sizing manufactures have their own in-house sizing software (Farris/Consolidated/Anderson Greenwood Crosby). The nice thing about using those is that you get to see what product line they would consider for the given data input.

However, you also have standalone independent tools out there. I think Aspen has some cool tools. I have used SuperChems in my area. It is a very flexible but does require some good training before you can really be efficient. You can build your PSV and layout and modify characteristics as needed. I have attached the link below. Notice how the program is advertised as being able to handle various types of evaluations. It is a powerful tool but I feel the flexibility in applications is what also creates the a somewhat steep leaning curve.


RE: PSV Sizing Software

Thanks ChemE08! I have not heard of iomosaic before, so that is just the kind of response I was hoping to get. I'll check out SuperChems and Aspen.

RE: PSV Sizing Software

Flaretot might be useful. With Flaretot you can calculate PSV (as API 526 defines) and overall downstream system. Unfortunately it can't help with upstream piping. Be aware - Flaretot uses rather simple thermodynamic and hydraulic models and aimed at refinery disposal systems.

RE: PSV Sizing Software

I suggest to use the search option in eng-tips forum, there are many posts discussing PSV sizing (single phase, two-phases etc.) with different methods and formulations as well as design criteria,

many manufacturers distribute software for PSV design / rating, these can include procedures according API 520 / ISO 4126, for two phase (non-reacting) a common option is Omega method (included in Farris),

the mentioned Design Institute for Emergency Relief Systems (DIERS) provides several good tools if you are interested in process analysis (rather than PSV rating/sizing)

to answer your question, for PSV datasheets (including automatic design / rating) I have found useful Excel with Prode Properties (which includes several PSV models for single and two-phase as HEM, HNE, HNE-DS plus fluid properties)

with Office you can easily create data-sheets and use a software for calc's.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close