Tableau des filetages
| Filetage Whitworth(cylindrique). DIN 259 (ISO 228) | |||||||
| Filetage | G1/8″ | G1/4″ | G3/8″ | G1/2″ | G5/8″ | G3/4″ | G7/8″ |
| Ø filetage en mm | 9.728 | 13.157 | 16.662 | 20.955 | 22.911 | 26.441 | 30.201 |
| Ø noyau mm | 8.566 | 11.445 | 14.950 | 18.631 | 20.587 | 24.117 | 27.877 |
| Filets au pouce (= 25,4 mm) | 28 | 19 | 19 | 14 | 14 | 14 | 14 |
| Filetage | G2 1/4″ | G2 3/8″ | G2 1/2″ | G2 3/4″ | G3″ | G3 1/4″ | G3 1/2″ |
| Ø filetage en mm | 65,710 | 69,390 | 75,184 | 81,534 | 87,884 | 93,980 | 100,330 |
| Ø noyau mm | 62,752 | 66,440 | 72,226 | 78,577 | 84,926 | 91,022 | 97,372 |
| Filets au pouce (= 25,4 mm) | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Filetage | G1″ | G1 1/8″ | G1 1/4″ | G1 3/8″ | G1 1/2″ | G1 3/4″ | G 2″ |
| Ø filetage en mm | 33,249 | 37,897 | 41,910 | 44,323 | 47,803 | 53,746 | 59,614 |
| Ø noyau mm | 30,291 | 34,939 | 38,952 | 41,365 | 44,845 | 50,788 | 56,656 |
| Filets au pouce (= 25,4 mm) | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Filetage | G3 3/4″ | G4″ | G4 1/2″ | G5″ | G5 1/2″ | G6″ | |
| Ø filetage en mm | 106,680 | 113,030 | 125,730 | 138,430 | 151,130 | 163,830 | |
| Ø noyau mm | 103,722 | 110,072 | 122,772 | 135,472 | 148,172 | 160,872 | |
| Filets au pouce (= 25,4 mm) | 11 | 11 | 11 | 11 | 11 | 11 | |
| Tuyaux bruts Whitworth (coniques). DIN 2999 (ISO 7/1) Rp-R BS 21 (BSP-BSPT) | |||||||
| Filetage | R1/8″ | R1/4″ | R3/8″ | R1/2″ | R5/8″ | R3/4″ | R7/8″ |
| Ø filetage en mm | 9.728 | 13.157 | 16.662 | 20.955 | 22.911 | 26.441 | 30.201 |
| Ø noyau mm | 8.566 | 11.445 | 14.950 | 18.631 | 20.587 | 24.117 | 27.877 |
| Filets au pouce (= 25,4 mm) | 28 | 19 | 19 | 14 | 14 | 14 | 14 |
| Filetage | R2 1/4″ | R2 3/8″ | R2 1/2″ | R2 3/4″ | R3″ | R3 1/4″ | R3 1/2″ |
| Ø filetage en mm | 65,710 | 69,390 | 75,184 | 81,534 | 87,884 | 93,980 | 100,330 |
| Ø noyau mm | 62,752 | 66,440 | 72,226 | 78,577 | 84,926 | 91,022 | 97,372 |
| Filets au pouce (= 25,4 mm) | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Filetage | R1″ | R1 1/8″ | R1 1/4″ | R1 3/8″ | R1 1/2″ | R1 3/4″ | R2″ |
| Ø filetage en mm | 33,249 | 37,897 | 41,910 | 44,323 | 47,803 | 53,746 | 59,614 |
| Ø noyau mm | 30,291 | 34,939 | 38,952 | 41,365 | 44,845 | 50,788 | 56,656 |
| Filets au pouce (= 25,4 mm) | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Filetage | R3 3/4″ | R4″ | R4 1/2″ | R5″ | R5 1/2″ | R6″ | |
| Ø filetage en mm | 106,680 | 113,030 | 125,730 | 138,430 | 151,130 | 163,830 | |
| Ø noyau mm | 103,722 | 110,072 | 122,772 | 135,472 | 148,172 | 160,872 | |
| Filets au pouce (= 25,4 mm) | 11 | 11 | 11 | 11 | 11 | 11 | |
| Filetage brut américain NPT (conique). ASA B 2.1 | |||||||
| Filetage | 1/8″NPT | 1/4″NPT | 3/8″NPT | 1/2″NPT | 3/4″NPT | 1″NPT | 11/4″NPT |
| Ø filetage en mm | 10,287 | 13,716 | 17,145 | 21,336 | 26,670 | 33,401 | 42,164 |
| Filets au pouce (= 25,4 mm) | 27 | 18 | 18 | 14 | 14 | 11 1/2 | 11 1/2 |
| Filetage | 11/2″NPT | 2″NPT | |||||
| Ø filetage en mm | 48,260 | 60,325 | |||||
| Filets au pouce (= 25,4 mm) | 11 1/2 | 11 1/2 | |||||
