Quote:
Originally posted by decodeddiesel:
Nope, actually 1/4" NPT has the same ID as 1/2" barbs. 3/8" is actually a reducer. think of it this way, 1/2" barbs are designed to fit into 1/2" ID, so the OD of the barbs is just a hair over 1/2". NPT refers to the ID of the fitting. Therefor 3/8" NPT is 3/8" ID and about 3/4" OD. It is kinda confusing, but not that difficult.
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i don't understand when you say "3/8" is a reducer" do you mean 3/8" hose barb on a 1/4" npt?
all i know is this. i am holding in my hand 1/2" x 3/8"NPT hose barb, and when you look through it, it is the same diamater through the whole thing.
so i don't know how a 1/4" NPT has the same ID as the 1/2", you might be right though, i have never held in my hand a 1/2" x 1/4" hose barb.
deez