Pipe thread callouts
Pipe thread callouts
(OP)
The proper callout on a drawing for NPT is:
1/2 NPT, or 3/8 NPT but when you get to an inch is it:
1 INCH NPT or 1" NPT?
Please don't guess - everyone here is guessing. Does anyone have the definitive answer?
Thanks,
Kim
1/2 NPT, or 3/8 NPT but when you get to an inch is it:
1 INCH NPT or 1" NPT?
Please don't guess - everyone here is guessing. Does anyone have the definitive answer?
Thanks,
Kim





RE: Pipe thread callouts
Therefore, it is "1 - 11 1/2 NPT".
Eric
RE: Pipe thread callouts
Even though 1"-11 1/2 NPT is correct this is normally reserved for use when purchasing taps and dies and such.
If you do use the thread call out you will need to have another descriptor, such a elbow, tee, etc.