soosai
30th March 2009, 06:58 AM
I have the 3 wire gauge set, to calibrate the parallel screw thread gauge. anyone suggest me, How can I calibrate the NPT taper thread plug gages.
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View Full Version : NPT thread calibration method - NPT taper thread plug gages Hershal 31st March 2009, 11:28 PM Someone with more experience in threads will likely reply soon..... DietCokeofEvil 9th April 2009, 01:52 PM You need a taper sine block to get a really good reading on NPTs using a three wire method. There is a two wire method for calibrating the P.D., but I've never thought it was very good. The ANSI B1.20.5 standard describes both procedures. |
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