Previous in Forum: Flange size or connection   Next in Forum: Machined cavities in pistons improve fuel economy
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
2 comments
Rate Comments: Nested
Anonymous Poster

Obscure Thread Spec

01/06/2006 4:39 PM

lrg writes:
Has anybody heard of a "G 1/2" sized pipe thread? We received a sensor with this thread on the process connection, and it came with its own special threaded port to weld in place. We'd much rather incorporate a G 1/2 threaded hole into our part instead of dealing with the welding, but I have no idea what the thread dimensions are. Is this a standard thread spec in Europe?
Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Anonymous Poster
#1

G1/2" threads

01/07/2006 7:47 AM

Go to Google search engine and in the subject line write G1/2" threads & enter. I did & I saw several suppliers.
Reply
DMOlsen
Participant

Join Date: Dec 2005
Posts: 4
#2

Obscure thread spec

01/09/2006 9:18 AM

This is a metric pipe thread. Festo sells lots of fittings with this spec and adapters between these and American NPT threads, if you want an adapter. My Machinery's handbook (23rd edition) has it among the "British Standard Pipe Threads for Non-pressure-tight joints". Since it is a straight thread, it typically requires some sort of gasket: an o-ring or Festo sells a plastic ring that will deform to seal as the thread to tighten. Search the web with "BS 2779:1973" for more information.
Reply
Reply to Forum Thread
Have a Different Question?
2 comments

Previous in Forum: Flange size or connection   Next in Forum: Machined cavities in pistons improve fuel economy
You might be interested in: Thread Gages, Thread Rolling Machines, Threaded Inserts

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Mechanical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (84 right now)
Show Members
Advertisement