×
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

Car sealed valve - origin of term ?

Car sealed valve - origin of term ?

Car sealed valve - origin of term ?

(OP)
As I understand, a "car sealed" valve is "locked" in position - either open or closed.  
Sometimes plastic strips are used, could also be more substantial locking device.
-Does anybody know the origins of this weird expression "car seal" ?
TIA

RE: Car sealed valve - origin of term ?

I'm pretty sure it refers to products being shipped on freight cars.

RE: Car sealed valve - origin of term ?


That's exactly where the term came from.  At least that's what I learned out in the plants in 1961.  All railroad freight cars used (& I believe still do) to used a metal sealing strip around the handles of the sliding doors.  The rupture or "breaking" signaled that the car had been opened and probably accessed.

Chemical process plants and oil refineries here in the Texas Gulf Coast have been using the term since before that time.

Art Montemayor
Spring, TX

RE: Car sealed valve - origin of term ?

Though it is explained above, I am giving the reference of an old thread just to show the versatility of this website

Thread798-92605

RE: Car sealed valve - origin of term ?

(OP)
Thanks for the informative and very precise answers !
Prior to posting the Q here, I had used Google for "car sealed" or "carr sealed" valve - it turns out that "carseal" is a much better search term.
Shows the potency of Google - but also the superiority of asking humans.
Frank
Denmark

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