Page 224 - DC_SWISS(Catalogue_TM_ES-EN)

NPT, NPTF ASME B1.20.1, ANSI B1.20.3 HSSE DC

D5800

N

D5800
1:16

Ø’’ l l d a ID
1
2
NPT, NPTF mm mm mm 2 mm
1/16 70 17 6 4.9 l 118701
1/8 70 17 8 6.2 l 110531
1/4 80 27 10 8 l 110530
3/8 85 27 12 9 l 110535
1/2 95 35 16 12 l 110529
3/4 105 35 20 16 l 110534
1 130 43 25 20 l 110532

Taladros previos para roscas NPT y NPTF
Core hole diameters for NPT and NPTF threads

Taladros previos cilíndricos Taladros previos cónicos 1:16 Roscar
Desgaste más rápido del macho. Taladrar cilíndrico según Ø D Roscar hasta la profundidad
2
A evitar y escariar cónico según Ø D 3 L = Ø nominal
3
Parallel hole Tapered hole 1:16 Tapped hole
Increased tap wear, Pre-drill at Ø D 2 Engage tap to hole depth
not recommended and taper-ream to Ø D L = nominal Ø
3 3
*Es recomendado de
escariar D al máximo
3
*Taper-ream at upper limit
D is recommended
3

NPT NPTF
Ø’’ D L D D (+0.05) D (+0.05) L
3
NPT, NPTF mm mm 1 mm 2 3 mm 3 mm mm
1/16 6.15 12 6 6.39 6.41 10.2
1/8 8.5 12 8.3 8.74 8.76 10.3
1/4 11 17.5 10.8 11.36 11.4 15.1
3/8 14.5 17.5 14.2 14.8 14.84 15.3
1/2 17.9 23 17.5 18.32 18.33 20
3/4 23.2 23 22.8 23.67 23.68 20.5
1 29 28 28.6 29.69 29.72 24.6

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