Company Details
Shijiazhuang Bang dong Pipeline Technology Co,Ltd.
September 20, 2018
MIP is an acronym for male iron pipe, and FIP is an acronym for female iron pipe.[2]
Outside the United States, some US pipe threads are found, as well as many British Standard Pipe threads and ISO 7-1, 7-2, 228-1, and 228-2 threads.
The various types are each named with a symbol and a full name, as follows:[3]
Symbol[3] | Shorthand expansion | Full name[3] | Comment[3] |
---|---|---|---|
NPT | national pipe taper | American National Standard Taper Pipe Thread | Tapered for sealing, often without any thread sealant; for connections in nearly every type of service |
NPS | national pipe straight | American National Standard Straight Pipe Thread | For rigidity; sealable only with sealant; sometimes male straight enclosed by female tapered for low-pressure sealing |
NPSC | national pipe straight–coupling | American National Standard Straight Pipe Thread for Couplings | For general couplings |
NPSF | national pipe straight–fuel | Dryseal USA (American) Standard Fuel Internal Straight Pipe Thread | Internal only, straight |
NPSH | national pipe straight–hose | American National Standard Straight Pipe Thread for Hose Couplings | For hose couplings |
NPSI | national pipe straight–intermediate | Dryseal USA (American) Standard Intermediate Internal Straight Pipe Thread | Similar to NPSF but slightly larger; internal only, straight |
NPSL | national pipe straight–locknut | American National Standard Straight Pipe Thread for Loose-fitting Mechanical Joints with Locknuts | For use with locknuts |
NPSM | national pipe straight–mechanical | American National Standard Straight Pipe Thread for Free-fitting Mechanical Joints | For various rigid mechanical uses |
NPTF | national pipe taper–fuel | Dryseal USA (American) Standard Taper Pipe Thread | For dryseal connections in nearly every type of service, especially fuel connections |
NPTR | national pipe taper–railing | American National Standard Taper Pipe Thread for Railing Joints | For railings |
PTF-SAE SHORT | pipe taper, fuel, SAE, short | Dryseal SAE Short Taper Pipe Thread | Named after SAE International; similar to NPTF but one turn shorter |
Nominal pipe size | Thread density | Thread pitch | Hand-tight engagement | Effective thread | Overall length | Actual outside diameter, OD | Tap drill | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Length | Turns | Diameter | Length | Turns | Diameter | |||||||||
inch | inch−1 | inch | mm | inch | inch | inch | inch | inch | inch | mm | inch | mm | ||
1⁄16 | 27 | 0.03703704 | 0.9407 | 0.1600 | 4.32 | 0.28118 | 0.2611 | 7.05 | 0.2875 | 0.3896 | 0.313 | 7.950 | ||
1⁄8 | 27 | 0.03703704 | 0.9407 | 0.1615 | 4.36 | 0.37360 | 0.2639 | 7.13 | 0.38000 | 0.3924 | 0.405 | 10.287 | 0.339 | 8.6106 |
1⁄4 | 18 | 0.05555555 | 1.4111 | 0.2278 | 4.10 | 0.49163 | 0.4018 | 7.23 | 0.50250 | 0.5946 | 0.540 | 13.716 | 7⁄16 | 11.113 |
3⁄8 | 18 | 0.05555555 | 1.4111 | 0.2400 | 4.32 | 0.62701 | 0.4078 | 7.34 | 0.63750 | 0.6006 | 0.675 | 17.145 | 37⁄64 | 14.684 |
1⁄2 | 14 | 0.07142857 | 1.8143 | 0.3200 | 4.48 | 0.77843 | 0.5337 | 7.47 | 0.79178 | 0.7815 | 0.840 | 21.3360 | 23⁄32 | 18.2563 |
3⁄4 | 14 | 0.07142857 | 1.8143 | 0.3390 | 4.75 | 0.98887 | 0.5457 | 7.64 | 1.00178 | 0.7935 | 1.050 | 26.6700 | 59⁄64 | 23.4156 |
1 | 11 1⁄2 | 0.08695652 | 2.2087 | 0.4000 | 4.60 | 1.23863 | 0.6828 | 7.85 | 1.25631 | 0.9845 | 1.315 | 33.4010 | 1 5⁄32 | 29.3688 |
1 1⁄4 | 11 1⁄2 | 0.08695652 | 2.2087 | 0.4200 | 4.83 | 1.58338 | 0.7068 | 8.13 | 1.60131 | 1.0085 | 1.660 | 42.1640 | 1 1⁄2 | 38.1000 |
1 1⁄2 | 11 1⁄2 | 0.08695652 | 2.2087 | 0.4200 | 4.83 | 1.82234 | 0.7235 | 8.32 | 1.84131 | 1.0252 | 1.900 | 48.2600 | 1 47⁄64 | 44.0531 |
2 | 11 1⁄2 | 0.08695652 | 2.2087 | 0.4360 | 5.01 | 2.29627 | 0.7565 | 8.70 | 2.31630 | 1.0582 | 2.375 | 60.3250 | 2 7⁄32 | 56.3563 |
2 1⁄2 | 8 | 0.12500000 | 3.1750 | 0.6820 | 5.46 | 2.76216 | 1.1375 | 9.10 | 2.79063 | 1.5712 | 2.875 | 73.0250 | 2 5⁄8 | 66.6750 |
3 | 8 | 0.12500000 | 3.1750 | 0.7660 | 6.13 | 3.38850 | 1.2000 | 9.60 | 3.41563 | 1.6337 | 3.500 | 88.9000 | 3 1⁄4 | 82.5500 |
3 1⁄2 | 8 | 0.12500000 | 3.1750 | 0.8210 | 6.57 | 3.88881 | 1.2500 | 10.00 | 3.91563 | 1.6837 | 4.000 | 101.6000 | 3 3⁄4 | 95.2500 |
4 | 8 | 0.12500000 | 3.1750 | 0.8440 | 6.75 | 4.38713 | 1.3000 | 10.40 | 4.41563 | 1.7337 | 4.500 | 114.3000 | 4 1⁄4 | 107.9500 |
4 1⁄2 | 8 | 0.12500000 | 3.1750 | 5.000 | 127.0000 | 4 3⁄4 | 120.6500 | |||||||
5 | 8 | 0.12500000 | 3.1750 | 0.9370 | 7.50 | 5.44929 | 1.4063 | 11.25 | 5.47863 | 1.8400 | 5.563 | 141.3002 | 5 9⁄32 | 134.1438 |
6 | 8 | 0.12500000 | 3.1750 | 0.9580 | 7.66 | 6.50597 | 1.5125 | 12.10 | 6.54063 | 1.9462 | 6.625 | 168.2750 | 6 11⁄32 | 161.1313 |
8 | 8 | 0.12500000 | 3.1750 | 1.0630 | 8.50 | 8.50003 | 1.7125 | 13.70 | 8.54063 | 2.1462 | 8.625 | 219.0750 | ||
10 | 8 | 0.12500000 | 3.1750 | 1.2100 | 9.68 | 10.62094 | 1.9250 | 15.40 | 10.66563 | 2.3587 | 10.750 | 273.0500 | ||
12 | 8 | 0.12500000 | 3.1750 | 1.3600 | 10.88 | 12.61781 | 2.1250 | 17.00 | 12.66563 | 2.5587 | 12.750 | 323.8500 | ||
14 | 8 | 0.12500000 | 3.1750 | 1.5620 | 12.50 | 13.87263 | 2.2500 | 18.00 | 13.91563 | 2.6837 | 14.000 | 355.6000 | ||
16 | 8 | 0.12500000 | 3.1750 | 1.8120 | 14.50 | 15.87575 | 2.4500 | 19.60 | 15.91563 | 2.8837 | 16.000 | 406.4000 | ||
18 | 8 | 0.12500000 | 3.1750 | 2.0000 | 16.00 | 17.87500 | 2.6500 | 21.20 | 17.91563 | 3.0837 | 18.000 | 457.2000 | ||
20 | 8 | 0.12500000 | 3.1750 | 2.1250 | 17.00 | 19.87031 | 2.8500 | 22.80 | 19.91563 | 3.2837 | 20.000 | 508.0000 | ||
24 | 8 | 0.12500000 | 3.1750 | 2.3750 | 19.00 | 23.86094 | 3.2500 | 26.00 | 23.91563 | 3.6837 | 24.000 | 609.6000 |
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