×
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

Male NPT into a Female NPSM

Male NPT into a Female NPSM

Male NPT into a Female NPSM

(OP)
Does anyone know how far a 1/2" MNPT will thread into a 1/2 FNPSM when it is hand tight?  (note: this arrangement is typical of bi-metal thermometers threaded into thermowells.)  I can't find a chart/table which shows this information.  I could just try it, but I do not have the parts.

RE: Male NPT into a Female NPSM

Figure it out from the taper.  Calculate the distance to equal diameters, female ID to male minor where interference begins.

Ted

RE: Male NPT into a Female NPSM

http://www.mcmaster.com/#straight-thread-pipe-adapters/=exjh0n

try looking at these adapters.

I used to use some Ingold fittings that are 1 1/4" NPS threads male, and I just use 1 1/4" NPT caps to close them.  Ended up getting about 1.5-2 turns on it.  But that was enough, with some teflon tape, to seal them.

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