To get email notification when someone adds to a thread you're following, click on the star in the thread's header and it will turn yellow; click again to turn it off. To edit your profile, click on the gear.
The Wall has a powerful search engine that will go all the way back to 2002. Use "quotation marks" around multiple-word searches. RIGHT-CLICK on the results and choose Open Link In New Window so you'll be able to get back to your results. Happy searching!
In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.

Senior Trainer

You mention a "loop seal" several times in your book A Pocketful of Steam Problems. What is it, how is it constructed, and what does one look like?


  • Dan HolohanDan Holohan Posts: 11,944Moderator mod
    Loop seal

    It's simply a U-shaped piping arrangement that fills with water and stops the steam. From the end of a steam main it would turn down vertically about five feet and then turn horizontal for a few inches before turning vertical again to join the dry return.
    Site Administrator

    Hug your kids.
This discussion has been closed.


It looks like you're new here. If you want to get involved, click one of these buttons!