NPT whorl diagram

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  • source:GERHOLD CNC Machining
NPT whorl is brief In 0 of external diameter of pipe of In 1/16 1/8 1/4 3/8 1/2 3/4 1 1 ¼ 1 ½ 2 2 ½ 3 3 ½ 4 of dimension of dimension pipe nominal.

3125 0.

405 0.

540 0.

675 0.

840 1.

050 1.

315 1.

660 1.

900 2.

375 2.

875 3.

500 4.

000 4.

500 Mm 7.

9 10.

3 13.

7 17.

1 21.

3 26.

7 33.

4 42.

2 48.

3 60.

3 73.

0 88.

9 101.

6 114.

Every inches of 3 teeth count pitch of 27 18 14 11 ½ 8: Mm 0.

9408 1.

411 1.

814 2.

209 3.

175 come back add up to length: Mm 4.

064 4.

102 5.

786 6.

096 8.

128 8.

611 10.

160 10.

668 11.

074 17.

323 19.

456 20.

853 21.

438 come back the diameter in closing: Mm 7.

142 9.

489 12.

487 15.

926 19.

772 25.

117 31.

462 40.

218 46.

287 58.

325 70.

159 86.

068 98.

776 111.

433 CNC Milling