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fire extinguisher problems

Posted: Sun Mar 17, 2013 5:10 pm
by urgle the danish cow
hey i have a fairly new fire extinguisher that would be a great air tank for a current project but how can i make an air tight seal in connecting it to standard piping? when i screw in 3/4 inch galvanized piping it only goes an 1/8 th of an inch deep before getting stuck and askew. im sure this has already been asked but i would appreciate the help.

Posted: Sun Mar 17, 2013 6:07 pm
by dewey-1
What brand and model?
Pictures?

What thread is your 3/4 pipe? NPT. BSPT, BSPP

If you have caliper, measure ID of extinquisher thread.

Here is example of extinquisher as chamber.
http://www.spudfiles.com/forums/viewtop ... tml#236916


Note internal construction:

Posted: Sun Mar 17, 2013 6:15 pm
by jsefcik
What ive seen done it grind off that nipple nd weld on a new piece nipple with the correct threads on it

Posted: Tue Mar 19, 2013 12:27 pm
by urgle the danish cow
dewey-1 wrote:What brand and model?
Pictures?

What thread is your 3/4 pipe? NPT. BSPT, BSPP

If you have caliper, measure ID of extinquisher thread.

Here is example of extinquisher as chamber.
http://www.spudfiles.com/forums/viewtop ... tml#236916


Note internal construction:
Yeah mine has that tube running down it ill post a picture soon

Posted: Mon Sep 30, 2013 5:45 am
by AlanFoy
Hey did you solve your problem? How did you fixed it? Please share the solution.