NPT-CI

Hand Taps for American Taper Pipe Threads for Cast Irons

Specification

■ Suitable for hard and abrasive materials such as cast irons.

E

Nitride NPT 3/4~

Recommended Tapping Speed depending on Materials

Cast irons Ductile cast irons

〜5 〜5

(m/min) (m/min) For icon explanation, refer to P.50

TYPE:1 TYPE:2

Segment:1G

SizeClassCodeChamferL (inch)ℓ (inch)Projection (inch)Ds (inch)K (inch)ℓk (inch)No. of flutesType
For American Pipe Threads
NPT 1/8-27ANSI GY83201 Y832023P2.1250.750.3120.437 0.3120.328 0.2340.37541 2
NPT 1/4-18ANSI GY832033P2.4371.0620.4590.5620.4210.43741
NPT 3/8-18ANSI GY832043P2.5621.0620.4540.70.5310.541
NPT 1/2-14ANSI GY832053P3.1251.3750.5790.6870.5150.62542
NPT 3/4-14ANSI GY832063P3.251.3750.5650.9060.6790.68752
NPT 1-11.5ANSI GY832073P3.751.750.6781.1250.8430.81252
NPT 1 1/4-11.5ANSI GY832083P41.750.6861.3120.9840.93752
NPT 1 1/2-11.5ANSI GY832093P4.251.750.6991.51.125172
NPT 2-11.5ANSI GY832103P4.51.750.6671.8751.4061.12572