Contact US

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!

*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

Designing Safety Pressure Valve Discharge Line

Designing Safety Pressure Valve Discharge Line

Designing Safety Pressure Valve Discharge Line

Hi guys,

I'm stuck with the design of discharge line (vent pipe) for the safety valve in a steam system used for protection of equipment i.e steam drum. The design is supposed to be of an open type (in my case vent pipe will not have umbrella fitting as described in the Caesar II technical reference) i.e the steam will be discharged to an atmosphere at a safe location. I've been given the discharge force so no need to calculate that. The problem I have is that the steam drum is sitting on top of another hot equipment so i have a large vertical displacement of a nozzle to which my safety valve is connected to, and I have to design the vent pipe which should be rigid so that it can withstand the discharge forces. I believe that the only way to solve this situation is to make my discharge line long enough to avoid excessive loading on my steam drum nozzle one one hand and to be able to support this line with an anchor to make it rigid on the other hand.

Any suggestions?

RE: Designing Safety Pressure Valve Discharge Line

guide may work better than an anchor, and you might try constant load spring supports if you need intermediate supports.

you must get smarter than the software you're using.

RE: Designing Safety Pressure Valve Discharge Line

As the discharge does not have any dimensions associated with it I presume you have checked the back pressure on the RV?
Also Have you applied the RV discharge forces including a DLF at the correct locations?
As Biginch says you do not need to apply an anchor since correctly placed guides would suffice.

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! Already a Member? Login


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