INT-S-NPT NPTF JIS

Interrupted Taps for American Taper Pipe Threads, Short (ℓg) Type Hand Taps for American Dryseal Taper Pipe Threads

Specification

■ The NPTF is a hand tap for the American dry seal tapered pipe threads and is used for products whose main purpose is the tightness of the threaded part in connection with pipe parts, etc.

Recommended Tapping Speeds depending on Materials

Medium carbon steels High carbon steels Alloy steels

中炭素鋼5高炭素鋼5合金鋼5
(m/min)(m/min)( m/ min)

TYPE:1 TYPE:2

g g

Segment:1G

SizeClassCodeChamferBasic major diaL (mm)ℓ (mm)ℓg (mm)Ds (mm)K (mm)ℓk (mm)No. of flutesTYPEMSRP
(mm) ForAmerican PipeThreadsl
1/16-27 NPTFANSI GTNTF01L3P7.77054171286941¥ 5,870
1/8-27 NPTFANSI GTNTF02L3P10.117551912.0586942¥ 5,870
1/4-18 NPTFANSI GTNTF04O3P13.426622817.451191242¥ 8,310
3/8-18 NPTFANSI GTNTF06O3P16.866652817.6514111442¥ 13,800
1/2-14 NPTFANSI GTNTF08Q3P20.980803522.8518141742¥ 23,000
3/4-14 NPTFANSI GTNTF12Q3P26.325853522.9523172042¥ 38,200
1 -11 1/2 NPTFANSI GTNTF16T3P32.934954527.426212452¥ 70,700
1 1/4-11 1/2 NPTFANSI GTNTF20T3P41.6891054528.132263052¥ 107,000 ※
1 1/2-11 1/2 NPTFANSI GTNTF24T3P47.7601104528.438293262¥ 152,000 ※
2 -11 1/2 NPTFANSI GTNTF32T3P59.797120502846353862¥ 240,000 ※