×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Jobs

ASME Sect 1 Blowdown and Drain Valves

ASME Sect 1 Blowdown and Drain Valves

ASME Sect 1 Blowdown and Drain Valves

(OP)
I have had previous experience where different states have specific requirements for the type of vavles installed in the blowdown and drain lines of power boilers.  Is there any where else in code other than Part PG that discusses specific requirements for valves placed in the blowdown and drain lines coming off of a boiler?  Thanks for any input.

RE: ASME Sect 1 Blowdown and Drain Valves

ASME B31.1 addresses these valves...


-MJC

  

RE: ASME Sect 1 Blowdown and Drain Valves

Please note the code distinction between blowdown , blowoff, and drain lines, and ensure that the boiler PID that defines these valves are accurately transmitted to the EPC vendor that is designing the downstream piping. We have had piping failures in the past , caused by the EPC vendor not recognizing the severity of service of these lines  ( and as defined by code). Not all drain lines are created equal.

RE: ASME Sect 1 Blowdown and Drain Valves

lcm..

For boiler blowoff (periodic bottom and mud drum blowoff), many engineering companies guidelines specify Sched 160 piping due to the extreme erosive nature of the event.

I have also heard of using 2.25 Chrome moly alloy piping in this service.

-MJC

  

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!


Resources