SAE vs NPT

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Haywire Haywood

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I think I saw this discussed before and with pictures, but which fitting is the least restrictive, 1/2" NPT or SAE 8? SAE = ORB, right?

Ian
 
The port diameter for a SAE 8 "ORB" is .391 and the I.D of 1/2" tubing with a .049" wall is .402". The I.D. of 1/2" pipe schedule 40 is .622". You would have to move up to aprox. an SAE 12 to get close to the same flow.
kfhines
 

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