Обший каталог Yamawa 2016 - 2017 - страница 595

Overall Thread Position on Shank Size of Length of
length length basic dia. dia. square square

L ℓ ℓg Ds K ℓk


(for blind hole)
Spiral Fluted Taps Spiral Fluted Taps Spiral Pointed Taps
NPT
Hand Taps for American Taper Pipe Threads
Specification


(for through hole)
E
NPT 3/4 ～
Recommended Tapping Speeds depending on Materials


(for through hole)
Medium carbon steels
〜
5
For icon explanation, refer to P.50


Hand Taps
TYPE：1 TYPE：2


Carbide Taps
Cemented
g g


Segment：1G


Roll Taps
Basic
L ℓ ℓg Ds K ℓk No. of
Size Class Code Chamfer major dia (mm) (mm) (mm) (mm) (mm) (mm) flutes Type Stock
(mm)
For American Pipe Threads
◎


Simple Inspection Tools
Special Thread Taps
NPT 1/16-27 ANSI G TNPT01L 3P 7.770 54 17 12 8 6 9 4 1
NPT 1/8-27 ANSI G TNPT02L 3P 10.117 55 19 12.05 8 6 9 4 2 ◎
NPT 1/4-18 ANSI G TNPT04O 3P 13.426 62 28 17.45 11 9 12 4 2 ◎
NPT 3/8-18 ANSI G TNPT06O 3P 16.866 65 28 17.65 14 11 14 4 2 ◎
NPT 1/2-14 ANSI G TNPT08Q 3P 20.980 80 35 22.85 18 14 17 4 2 ◎


Pipe Taps
NPT 3/4-14 ANSI G TNPT12Q 3P 26.325 85 35 22.95 23 17 20 4 2 ◎
NPT 1 -11.5 ANSI G TNPT16T 3P 32.934 95 45 27.4 26 21 24 5 2 ◎
NPT 1 1/4-11.5 ANSI G TNPT20T 3P 41.689 105 45 28.1 32 26 30 5 2 △
NPT 1 1/2-11.5 ANSI G TNPT24T 3P 47.760 110 45 28.4 38 29 32 6 2 △
NPT 2 -11.5 ANSI G TNPT32T 3P 59.797 120 50 28 46 35 38 6 2 △ Thread Mills
NPT 2 1/2-8 ANSI G TNPT40X 3P 72.273 145 65 40.8 55 41 44 8 2 △
NPT 3 -8 ANSI G TNPT48X 3P 88.184 155 65 42.95 65 50 52 8 2 △
Dies
Center Drills
Centering Tools


JIS
◎=Standard ○=Semi standard △=Made to order
Pipe-42
For improvement, spec may change without advance notice. 591